Fluke 5820A Service Manual

5820A

®

Oscilloscope Calibrator

Service Manual

PN 673142
June 1999 Rev.1, 4/03

© 1999-2003 Fluke Corporation, All rights reserved. Printed in U.S.A.
All product names are trademarks of their respective companies.

LIMITED WARRANTY & LIMITATI O N OF LIABILITY

Each Fluke product is warranted to be free from defects in material and workmanship under
normal use and service. The warranty period is one year and begins on the date of shipment.
Parts, product repairs and services are warranted for 90 days. This warranty extends only to the
original buyer or end-user customer of a Fluke authorized reseller, and does not apply to fuses,
disposable batteries or to any product which, in Fluke’s opinion, has been misused, altered,
neglected or damaged by accident or abnormal conditions of operation or handling.Fluke warrants
that software will operate substantially in accordance with its functional specifications for 90 days
and that it has been properly recorded on non-defective media. Fluke does not warrant that
software will be error free or operate without interruption.

Fluke authorized resellers shall extend this warranty on new and unused products to end-user
customers only but have no authority to extend a greater or different warranty on behalf of Fluke.
Warranty support is available if product is purchased through a Fluke authorized sales outlet or
Buyer has paid the applicable international price. Fluke reserves the right to invoice Buyer for
importation costs of repair/replacement parts when product purchased in one country is submitted
for repair in another country.

Fluke’s warranty obligation is limited, at Fluke’s option, to refund of the purchase price, free of
charge repair, or replacement of a defective product which is returned to a Fluke authorized
service center within the warranty period.

To obtain warranty service, contact your nearest Fluke authorized service center or send the
product, with a description of the difficulty, postage and insurance prepaid (FOB Destination), to
the nearest Fluke authorized service center. Fluke assumes no risk for damage in transit.
Following warranty repair, the product will be returned to Buyer, transportation prepaid (FOB
Destination). If Fluke determines that the failure was caused by misuse, alteration, accident or
abnormal condition of operation or handling, Fluke will provide an estimate of repair costs and
obtain authorization before commencing the work. Following repair, the product will be returned to
the Buyer transportation prepaid and the Buyer will be billed for the repair and return
transportation charges (FOB Shipping Point).

THIS WARRANTY IS BUYER’S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL
OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY
IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF DATA, WHETHER
ARISING FROM BREACH OF WARRANTY OR BASED ON CONTRACT, TORT, RELIANCE OR
ANY OTHER THEORY.

Since some countries or states do not allow limitation of the term of an implied warranty, or
exclusion or limitation of incidental or consequential damages, the limitations and exclusions of
this warranty may not apply to every buyer. If any provision of this Warranty is held invalid or
unenforceable by a court of competent jurisdiction, such holding will not affect the validity or
enforceability of any other provision.

Fluke Corporation Fluke Europe B.V.
P.O. Box 9090 P.O. Box 1186
Everett, WA 98206-9090 5602 BD Eindhoven
U.S.A. The Netherlands

5/94

Safety Information

This Calibrator complies with IEC publication 1010- 1 ( 1992-1), Safety Requirements for
Electrical Measuring, Control and Laboratory Equipment, and ANSI/ISA-S82.01-1994,
and CAN/CSA-C22.2 No. 1010.1-92. This m anual cont ains information, warnings, and
cautions that must be followed to ensure saf e oper ation and to maintain the Calibrator in
a safe condition. Use of this Calibrator in a manner not specified herein may impair the
protection provided by the Calibrator.

This Calibrator is designed for IEC 1010-1 Installat ion Cat egory II use. It is not designed
for connection to circuits rated over 4800 VA.

Warning statements identify conditions or practices t hat could r esult in personal injury
or loss of life.

Caution statements identify conditions or pr act ices t hat could result in damage to
equipment.

SYMBOLS MARKED ON THE CALIBRATOR

WARNING Risk of electric shock. Refer to the manual (see the Index for

references).

GROUND Ground terminal to chassis (earth).

Attention Refer to the manual (s ee t he Index for references). This

symbol indicates that information about usage of a feature is contained in
the manual.

AC POWER SOURCE

The Calibrator is intended to operate from an ac power source that will not apply more
than 264V ac rms between the supply conductors or bet ween eit her supply conductor
and ground. A protective ground connection by way of the grounding conductor in the
power cord is required for safe operation.

USE THE PROPER FUSE

To avoid fire hazard, use only the specified replacement f use:

• For 100 V or 120 V operation, use a 5A/250V time delay fuse ( Fluke PN 109215) .

• For 220 V or 240 V operation, use a 2.5A/250V time delay f use ( Fluke PN 851931) .

GROUNDING THE CALIBRATOR

The Calibrator uses controlled overvoltage techniques that require the Calibrator to be
grounded whenever normal mode or common mode ac volt ages or t r ansient voltages
may occur. The enclosure must be grounded through t he gr ounding conductor of the
power cord, or through the r ear panel CHASSI S G RO UND binding post.

USE THE PROPER POWER CORD

Use only the power cord and connector appropriate for the voltage and plug
configuration in your country.

Use only a power cord that is in good condition.
Refer power cord and connector changes to qualified service personnel.

DO NOT OPERATE IN EXPLOSIVE ATMOSPHERES

To avoid explosion, do not operate the Calibrator in an atmosphere of explosive gas.

CHECK INSULATION RATINGS

Verify that the voltage applied to the unit under t est does not exceed the insulation
rating of the UUT and the interconnecting cables.

DO NOT REMOVE COVER DURING OPERATION

To avoid personal injury or death, do not remove the Calibrator cover without first
removing the power source connected to the rear panel. Do not operate the Calibrator
without the cover properly installed. Norm al calibration is accomplished with the cover
closed. Access procedures and the warnings for such procedures ar e cont ained in the
Service Manual. Service procedures are for qualified service personnel only.

DO NOT ATTEMPT TO OPERATE IF PROTECTION MAY BE IMPAIRED

If the Calibrator appears damaged or oper ates abnormally, protection may be impaired. Do
not attempt to operate t he Calibr at or under these conditions. Refer all questions of proper
Calibrator operation to qualified ser vice personnel.

Table of Contents

Chapter Title Page

1 Introduction and Specifications........................................................ 1-1

1-1. Introduction........................................................................................... 1-3

1-2. How to Contact Fluke........................................................................... 1-4

1-3. Instruction Manuals.............................................................................. 1-4

1-4. 5820A Operators Manual................................................................. 1-4

1-5. 5820A Service Manual..................................................................... 1-5

1-6. Specifications........................................................................................ 1-5

1-7. General Specifications.......................................................................... 1-6

1-8. Volt Specifications........................................................................... 1-8

1-9. DC Volt Measure Specifications...................................................... 1-8

1-10. Edge Specifications.......................................................................... 1-9

1-11. Leveled Sine Wave Specifications................................................... 1-10

1-12. Time Marker Specifications............................................................. 1-11

1-13. Wave Generator Specifications........................................................ 1-12

1-14. 1 ns Pulse Generator Specifications................................................. 1-13

1-15. Trigger Signal Specifications (Pulse Function) ............................... 1-13

1-16. Trigger Signal Specifications (Time Marker Function)................... 1-13

1-17. Trigger Signal Specifications (Edge Function)................................ 1-14

1-18. Trigger Signal Specifications (Square Wave Voltage Function)..... 1-14

1-19. Trigger Signal Specifications (TV).................................................. 1-14

1-20. Tunnel Diode Drive Capability........................................................ 1-14

1-21. Oscilloscope Input Resistance Measurement Specifications........... 1-14

1-22. Oscilloscope Input Capacitance Measurement Specifications......... 1-14

1-23. Overload Measurement Specifications............................................. 1-15

1-24. External Reference Input Specifications.......................................... 1-15

1-25. Auxiliary Input Specifications.......................................................... 1-15

1-26. Current Output Specifications.......................................................... 1-15

2 Theory of Operation........................................................................... 2-1

2-1. Introduction........................................................................................... 2-3

2-2. Voltage Mode................................................................................... 2-7

2-3. Edge Mode........................................................................................ 2-7

2-4. Leveled Sine Wave Mode ................................................................ 2-7

2-5. Time Marker Mode .......................................................................... 2-7

i

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Service Manual

2-6. Wave Generator Mode ..................................................................... 2-8

2-7. Pulse Generator ................................................................................ 2-8

2-8. Input DC Voltage Measurement Mode ............................................ 2-8

2-9. Input Impedance Mode (Resistance)................................................ 2-8

2-10. Input Impedance Mode (Capacitance).............................................. 2-8

2-11. Current Module ................................................................................ 2-9

2-12. Overload Mode................................................................................. 2-9

2-13. Trigger.............................................................................................. 2-9

2-14. High Frequency Switching............................................................... 2-9

2-15. 5 Channel Option.............................................................................. 2-9

2-16. GHz Option Module......................................................................... 2-9

3 Calibration and Verification............................................................... 3-1

3-1. Introduction........................................................................................... 3-3

3-2. Equipment Required for Calibration and Verification......................... 3-3

3-3. Calibration Setup.................................................................................. 3-6

3-4. Calibration and Verification of Square Wave Voltage Functions........ 3-6

3-5. Overview of HP3458A Operation.................................................... 3-6

3-6. Setup for Scope Calibrator Voltage Square Wave Measurements... 3-6
3-7. Setup for Scope Calibrator Edge and Wave Gen Square Wave

Measurements................................................................................... 3-8

3-8. DC Voltage Calibration........................................................................ 3-9

3-9. AC Voltage Calibration........................................................................ 3-10

3-10. DC Measurement Calibration............................................................... 3-11

3-11. Current Calibration............................................................................... 3-11

3-12. DC Current Calibration.................................................................... 3-11

3-13. AC Current Calibration.................................................................... 3-11

3-14. Wave Generator Calibration................................................................. 3-12

3-15. Edge Amplitude Calibration................................................................. 3-12

3-16. Leveled Sine Wave Amplitude Calibration.......................................... 3-13

3-17. Leveled Sine Wave Flatness Calibration.............................................. 3-14

3-18. Low Frequency Calibration.............................................................. 3-14

3-19. High Frequency Calibration............................................................. 3-15

3-20. Pulse Width Calibration........................................................................ 3-15

3-21. MeasZ Calibration................................................................................ 3-16

3-22. Leveled Sine Wave Flatness Calibration (GHz Option)....................... 3-18

3-23. 5820A-5 Option.................................................................................... 3-18

3-24. Verification........................................................................................... 3-18

3-25. DC Voltage Verification .................................................................. 3-20

3-26. Verification at 1 MΩ.................................................................... 3-20

3-27. Verification at 50 Ω..................................................................... 3-20

3-28. AC Voltage Amplitude Verification................................................ 3-23

3-29. Verification at 1 MΩ.................................................................... 3-23

3-30. Verification at 50 Ω..................................................................... 3-24

3-31. AC Voltage Frequency Verification ................................................ 3-25

3-32. DC Measurement Verification......................................................... 3-26

3-33. Current Verification ......................................................................... 3-27

3-34. DC Current Verification .............................................................. 3-27

3-35. AC Current Verification .............................................................. 3-28

3-36. Edge Amplitude Verification........................................................... 3-30

3-37. Edge Frequency Verification............................................................ 3-30

3-38. Edge Duty Cycle Verification.......................................................... 3-31

3-39. Edge Rise Time Verification............................................................ 3-31

3-40. Edge Aberrations.............................................................................. 3-33

ii

Contents

3-41. Tunnel Diode Pulser Drive Amplitude Verification........................ 3-34

3-42. Leveled Sine Wave Amplitude Verification.................................... 3-34

3-43. MHz Leveled Sine Wave Flatness Verification............................... 3-35

3-44. Equipment Setup for Low Frequency Flatness............................ 3-35

3-45. Equipment Setup for High Frequency Flatness........................... 3-36

3-46. Low Frequency Verification........................................................ 3-36

3-47. High Frequency Verification ....................................................... 3-37

3-48. < 600 MHz Leveled Sine Harmonic Verification........................ 3-47

3-49. Time Marker Verification ................................................................ 3-48

3-50. Wave Generator Verification........................................................... 3-50

3-51. Verification at 1 MΩ.................................................................... 3-50

3-52. Verification at 50 Ω..................................................................... 3-52

3-53. Pulse Width Verification.................................................................. 3-53

3-54. Pulse Skew Calibration and Verification......................................... 3-54

3-55. Calibration.................................................................................... 3-55

3-56. Verification .................................................................................. 3-55

3-57. Pulse Period Verification ................................................................. 3-56

3-58. MeasZ Resistance Verification........................................................ 3-56

3-59. MeasZ Capacitance Verification...................................................... 3-57

3-60. Overload Function Verification ....................................................... 3-58

3-61. Hardware Adjustments ......................................................................... 3-59

3-62. Equipment Required......................................................................... 3-59

3-63. Adjusting the Leveled Sine Wave Function..................................... 3-59

3-64. Equipment Setup.......................................................................... 3-59

3-65. Adjusting the Leveled Sine Wave VCO Balance........................ 3-60

3-66. Adjusting the Leveled Sine Wave Harmonics............................. 3-60

3-67. Adjusting the Aberrations for the Edge Function ............................ 3-61

3-68. Equipment Setup.......................................................................... 3-61

3-69. Adjusting the Edge Aberrations................................................... 3-62

(continued)

4 Maintenance........................................................................................ 4-1

4-1. Introduction........................................................................................... 4-3

4-2. Replacing the Line Fuse ....................................................................... 4-3

4-3. Cleaning the Air Filter.......................................................................... 4-4

4-4. General Cleaning.................................................................................. 4-6

4-5. Service Information.............................................................................. 4-6

5 Options................................................................................................ 5-1

5-1. Introduction........................................................................................... 5-3

5-2. 5820A-5 Option.................................................................................... 5-3

5-3. GHz Module ......................................................................................... 5-3

5-4. GHz Option Specifications............................................................... 5-3

5-5. Fast Edge Specifications .................................................................. 5-3

5-6. Leveled Sine Wave (> 600 MHz ) Specifications............................ 5-4

5-7. Time Marker Specifications............................................................. 5-5

5-8. Theory of Operation......................................................................... 5-5

5-9. Fast Edge Adjustment for the GHz Module..................................... 5-6

5-10. GHz Leveled Sine Wave Frequency Verification............................ 5-9

5-11. GHz Leveled Sine Wave Harmonics Verification........................... 5-10

5-12. Verification Tables ............................................................................... 5-11

5-13. Verification Tables for Channels 2-5 ................................................... 5-21

5-14. Leveled Sine Flatness (< 600 MHz)................................................. 5-21

5-15. Pulse Width ...................................................................................... 5-23

5-16. Edge Rise Time Verification (Channels 2-5)................................... 5-24

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Service Manual

5-17. Pulse Skew........................................................................................ 5-25

5-18. Channel 2 DMM Input..................................................................... 5-25

5-19. Channel 3 DMM Input..................................................................... 5-27

5-20. Channel 4 DMM Input..................................................................... 5-28

5-21. Channel 5 DMM Input..................................................................... 5-29

5-22. Capacitance ...................................................................................... 5-30

6 Replaceable Parts............................................................................... 6-1

6-1. Introduction........................................................................................... 6-3

6-2. How to Obtain Parts.............................................................................. 6-3

6-3. List of Replacement Parts..................................................................... 6-3

Index

iv

List of Tables

Table Title Page

1-1. General Specifications........................................................................................... 1-6

1-2. Volt Specifications................................................................................................. 1-8

1-3. DC Volt Measure Specifications ........................................................................... 1-8

1-4. Edge Specifications................................................................................................ 1-9

1-5. Leveled Sine Wave Specifications (≤ 600 MHz ).................................................. 1-10

1-6. Time Marker Specifications................................................................................... 1-11

1-7. Wave Generator Specifications.............................................................................. 1-12

1-8. Pulse Generator Specifications.............................................................................. 1-13

1-9. Trigger Signal Specifications (Pulse Function)..................................................... 1-13

1-10. Trigger Signal Specifications (Time Marker Function)......................................... 1-13

1-11. Trigger Signal Specifications (Edge Function)...................................................... 1-14

1-12. Trigger Signal Specifications (Square Wave Voltage Function)........................... 1-14

1-13. TV Trigger Signal Specifications .......................................................................... 1-14

1-14. Tunnel Diode Drive Capability.............................................................................. 1-14

1-15. Oscilloscope Input Resistance Measurement Specifications................................. 1-14

1-16. Oscilloscope Input Capacitance Measurement Specifications .............................. 1-14

1-17. Overload Measurement Specifications .................................................................. 1-15

1-18. Auxiliary Input Performance.................................................................................. 1-15

1-19. Current Output Specifications................................................................................ 1-15

3-1. Scope Calibrator Calibration and Verification Equipment.................................... 3-3

3-2. Voltage HP3458A Settings.................................................................................... 3-7

3-3. Edge and Wave Generator HP3458A Settings....................................................... 3-8

3-4. Verification Methods for Scope Calibrator Functions........................................... 3-19

3-5. DC Voltage Verification........................................................................................ 3-21

3-6. DC Voltage Verification at 50 Ω........................................................................... 3-22

3-7. AC Voltage Amplitude Verification...................................................................... 3-24

3-8. AC Voltage Verification at 50Ω............................................................................ 3-25

3-9. AC Voltage Frequency Verification...................................................................... 3-26

3-10. DC Voltage Measurement Verification ................................................................. 3-27

3-11. DC Voltage Verification at 1 MΩ ......................................................................... 3-28

3-12. Edge and Wave Generator HP3458A Settings....................................................... 3-28

3-13. AC Current Verification......................................................................................... 3-29

3-14. Edge Amplification Verification............................................................................ 3-30

3-15. Edge Frequency Verification ................................................................................. 3-31

3-16. Edge Rise Time Verification.................................................................................. 3-33

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5820A

Service Manual

3-17. Edge Aberrations.................................................................................................... 3-33

3-18. Tunnel Diode Pulser Verification .......................................................................... 3-34

3-19. Leveled Sine Wave Amplitude Verification.......................................................... 3-35

3-20. Low Frequency Flatness Verification at 5.5 V...................................................... 3-37

3-21. High Frequency Flatness Verification ................................................................... 3-38

3-22. Leveled Sine Wave Harmonics Verification ......................................................... 3-48

3-23. Marker Generator Verification .............................................................................. 3-49

3-24. Wave Generator Verification at 1 MΩ .................................................................. 3-51

3-25. Wave Generator Verification at 50 Ω.................................................................... 3-52

3-25. Pulse Generator Verification: Pulse Width............................................................ 3-54

3-25. Pulse Skew ............................................................................................................. 3-55

3-25. Pulse Generator Verification: Period..................................................................... 3-56

3-26. MeasZ Resistance Verification.............................................................................. 3-57

3-27. MeasZ Capacitance Verification............................................................................ 3-58

4-1. Replacement Fuses................................................................................................. 4-3

5-1. Fast Edge Specifications........................................................................................ 5-3

5-2. Leveled Sine Wave Specifications (> 600 MHz)................................................... 5-4

5-3. Time Marker Specifications................................................................................... 5-5

5-4. Leveled Sine Wave Frequency Verification (Channels 1, 2, and 5)..................... 5-11

5-5. Fast Edge Rise Time for Channels 1, 2, and 5....................................................... 5-11

5-6. Leveled Sine Wave Harmonics Verification (Channels 1, 2, and 5)..................... 5-12

5-7. GHz Leveled Sinewave Verification: Flatness (Channels 1, 2, and 5).................. 5-14

5-8. Leveled Sine Flatness (5.5 V) (Channel 2)............................................................ 5-21

5-9. Leveled Sine Flatness (5.5 V) (Channel 3)............................................................ 5-22

5-10. Leveled Sine Flatness (5.5 V) (Channel 4)............................................................ 5-22

5-11. Leveled Sine Flatness (5.5 V) (Channel 5)............................................................ 5-23

5-12. Pulse Width............................................................................................................ 5-23

5-13. Edge Rise Time (Channel 2).................................................................................. 5-24

5-14. Edge Rise Time (Channel 3).................................................................................. 5-24

5-15. Edge Rise Time (Channel 4).................................................................................. 5-24

5-16. Edge Rise Time (Channel 5).................................................................................. 5-24

5-17. Pulse Skew ............................................................................................................. 5-25

5-18. Levsine Amplitude................................................................................................. 5-25

5-19. DC Voltage 1 MΩ.................................................................................................. 5-25

5-20. AC Voltage 1 MΩ.................................................................................................. 5-26

5-21. Edge Amplitude...................................................................................................... 5-26

5-22. Levsine Amplitude................................................................................................. 5-27

5-23. DC Voltage 1 MΩ.................................................................................................. 5-27

5-24. AC Voltage 1 MΩ.................................................................................................. 5-27

5-25. Edge Amplitude...................................................................................................... 5-27

5-26. Levsine Amplitude................................................................................................. 5-28

5-27. DC Voltage 50 Ω ................................................................................................... 5-28

5-28. AC Voltage 50 Ω ................................................................................................... 5-28

5-29. Edge Amplitude...................................................................................................... 5-29

5-30. Levsine Amplitude................................................................................................. 5-29

5-31. DC Voltage 1 MΩ.................................................................................................. 5-29

5-32. AC Voltage 1 MΩ.................................................................................................. 5-29

5-33. Edge Amplitude...................................................................................................... 5-30

5-34. Capacitance (Channels 2-5) ................................................................................... 5-30

6-1. 5820A Manuals...................................................................................................... 6-4

6-2. Front Panel Module List of User Replaceable Parts.............................................. 6-4

6-3. Rear Panel Module List of Replaceable Parts........................................................ 6-7

6-4. Chassis Module List of Replaceable Parts............................................................. 6-9

6-5. Single Channel Without GHz Option List of Replaceable Parts........................... 6-12

6-6. Single Channel With GHZ Option List of Replaceable Parts................................ 6-15

vi

List of Figures

Figure Title Page

1-1. 5820A Multi-Product Calibrator............................................................................ 1-3

1-2. 5820A Calibrator Dimensional Outline................................................................. 1-6

2-1. Signal Diagram of Chassis..................................................................................... 2-4

2-2. Block Diagram of Scope Module........................................................................... 2-5

2-3. Signal Diagram of Scope Module.......................................................................... 2-6

3-1. Setup for Scope Calibrator Voltage Square Wave Measurements ........................ 3-8

3-2. Setup for Scope Calibrator Edge and Wave Gen Square Wave Measurements.... 3-9

3-3. Connecting the Calibrator Mainframe to the 5790A AC Measurement Standard. 3-14

3-4. Setup for MeasZ Calibration.................................................................................. 3-17

3-5. Setup for AC Voltage Frequency Verification ...................................................... 3-26

3-6. Setup for Edge Rise Time Verification.................................................................. 3-32

3-7. Setup for Leveled Sine Wave Harmonics Verification.......................................... 3-47

3-8. Setup for Wave Generator Function...................................................................... 3-50

3-9. Setup for Overload Function Verification............................................................. 3-58

3-10. Adjusting the Leveled Sine Wave Balance............................................................ 3-60

3-11. Adjusting the Leveled Sine Wave Harmonics....................................................... 3-61

3-12. Adjusting Short-Term Edge................................................................................... 3-63

4-1. Accessing the Fuse................................................................................................. 4-4

4-2. Accessing the Air Filter ......................................................................................... 4-5

5-1. GHz Block Diagram............................................................................................... 5-6

5-2. Fast Edge Full Wave Form..................................................................................... 5-7

5-3. Porch ...................................................................................................................... 5-8

5-4. Bullet on the Porch................................................................................................. 5-8

5-5. Critically Triggered Edge at Porch Height Level I................................................ 5-9

5-6. Critically Distorted Edge at Porch Height Level II................................................ 5-9

5-7. Setup for Leveled Sine Wave Harmonics Verification.......................................... 5-10

6-1. Final Assembly....................................................................................................... 6-5

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5820A

Service Manual

viii

Chapter 1

Introduction and Specifications

Title Page

1-1. Introduction........................................................................................... 1-3

1-2. How to Contact Fluke........................................................................... 1-4

1-3. Instruction Manuals.............................................................................. 1-4

1-4. 5820A Operators Manual................................................................. 1-4

1-5. 5820A Service Manual..................................................................... 1-5

1-6. Specifications........................................................................................ 1-5

1-7. General Specifications.......................................................................... 1-6

1-8. Volt Specifications........................................................................... 1-8

1-9. DC Volt Measure Specifications...................................................... 1-8

1-10. Edge Specifications.......................................................................... 1-9

1-11. Leveled Sine Wave Specifications................................................... 1-10

1-12. Time Marker Specifications............................................................. 1-11

1-13. Wave Generator Specifications........................................................ 1-12

1-14. 1 ns Pulse Generator Specifications................................................. 1-13

1-15. Trigger Signal Specifications (Pulse Function) ............................... 1-13

1-16. Trigger Signal Specifications (Time Marker Function)................... 1-13

1-17. Trigger Signal Specifications (Edge Function)................................ 1-14

1-18. Trigger Signal Specifications (Square Wave Voltage Function)..... 1-14

1-19. Trigger Signal Specifications (TV).................................................. 1-14

1-20. Tunnel Diode Drive Capability........................................................ 1-14

1-21. Oscilloscope Input Resistance Measurement Specifications........... 1-14

1-22. Oscilloscope Input Capacitance Measurement Specifications......... 1-14

1-23. Overload Measurement Specifications............................................. 1-15

1-24. External Reference Input Specifications.......................................... 1-15

1-25. Auxiliary Input Specifications.......................................................... 1-15

1-26. Current Output Specifications.......................................................... 1-15

1-1

5820A

Service Manual

1-2

1-1. Introduction

The Fluke Model 5820A Oscilloscope Calibrator (Figure 1-1) is a precise instrument that
calibrates analog and digital oscilloscopes. Specifications are provided in this chapter.

To prevent electric shock or other possible injuries, t he 5820A
Calibrator must be operated in the way specif ied by this manual
or other documentation provided by Fluke.

Input voltages exceeding 30 V dc may cause damage to the
instrument. Do not apply voltages except in voltage
measurement mode.

Features of the 5820A Calibrator include the following:

• Automatic meter error calculation.

• % and  keys that change the output value to pre-determined cardinal values

for various functions.

Warning

WCaution

Introduction and Specifications

Introduction

1

• Programmable entry limits that prevent invalid amounts from being entered.

• Edge, Leveled Sine, Pulse, Marker, and Wave Generation modes.

• Accurate oscilloscopic input impedance measurement.

• Tunnel Diode Pulse compatibility.

• DC Volt Measure Mode.

• Current Mode generates both DC and low frequency ac current.

• 1 ns to 500 ns pulse width capability with skew controlled trigger.

OSCILLOSCOPE

5820A

CALIBRATOR • 2GHz

CAT

SOURCE/MEASURE

EXT TRIG

CHAN 1

130V
PK
MAX

SOURCE

30V DC
MAX

MEASURE

CHAN 1-5

AUX
INPUT

CHAN 2

20V PK

MAX

CHAN 3

CHAN 4

EXT TRIG

20V PK

MAX

CHAN 5

20V PK

MAX

OPR

STBY

VOLT

EDGE

789

456

123

+

/

0•

LEVSINE

PREV

MARKER

MENU

NEW

µ

V

REF

m

n

dBm

k

sec

Hz

M

ENTER

MORE

MODES

CHAN

MULT

RESETCE

SETUP

AUX

INPUT

DIV

x

÷

EDIT

FIELD

100 mA MAX
20V PK MAX

POWER

I

O

Figure 1-1. 5820A Oscilloscope Calibrator

yh001f.eps

1-3

5820A

Service Manual

• External reference.

• Auxiliary input.

• 5-channel output (5-Channel Option). The 5-Channel Option allows you to calibrate

up to five oscilloscope channels simultaneously without changing cables.

• Simultaneous output of a signal and a trigger signal.

• 600 MHz, Leveled Sine wave output.

• Optional 600 MHz - 2.1 GHz, Leveled Sine wave output with 150 ps fast edge.

• Standard IEEE-488 (GPIB) interface, complying with ANSI/IEEE Standards

488.1-1987 and 488.2-1987.

• EIA Standard RS-232-C serial data interface for printing, displaying, or transferring

internally stored calibration constants, and for remote control of the 5820A.

• Pass-through RS-232-C serial data interface for communicating with the Unit Under

Test (UUT).

• Extensive automatic internal self testing and diagnostics of analog and digital

functions.

1-2. How to Contact Fluke

USA and Canada: 1-888-99-FLUKE (1-888-993-5853)
Europe: [phone]
Japan: [phone]
Singapore: [phone]
Anywhere in the world: [phone]

For additional information about Fluke, its products, and services, visit Fluke’s web site
at: www.fluke.com

1-3. Instruction Manuals

The 5820A Manual Set provides complete information for operators and service or

maintenance technicians. The set includes:

• 5820A Operators Manual (PN 802154)

• 5820A Service Manual (PN 673142)

The 5820A Operators Manual ships with the instrument. The 5820A Service Manual is

optional. Order additional copies of the manuals separately using the part number
provided. For ordering instructions, refer to the Fluke Catalog, or ask a Fluke sales
representative. These manuals are also available on Fluke's web site www.fluke.com.

1-4. 5820A Operators Manual

The 5820A Operators Manual provides complete information for installing the 5820A

Oscilloscope Calibrator and operating it from the front panel keys and in remote
configurations. The manual also provides a glossary of calibration, specifications, and
error code information. The 5820A Operators Manual includes the following topics:

1-4

• Installation

• Operating controls and features, including front panel operation

• Remote operation (IEEE-488 bus or serial port remote control)

• Serial port operation (printing, displaying, or transferring data, and setting up for

serial port remote control)

• Operator maintenance, including verification procedures and calibration approach

for the 5820A

• Accessories

• Error Messages

1-5. 5820A Service Manual

This 5820A Service Manual includes: product specifications, appropriate theory of
operation, calibration and verification procedures, maintenance information, and options.

1-6. Specifications

The following paragraphs describe the details for the 5820A specifications. All
specifications are valid after allowing a warm-up period of 30 minutes, or twice the time
the 5820A has been turned off. (For example, if the 5820A has been turned off for 5
minutes, the warm-up period is 10 minutes.)

All specifications apply for the temperature and time period indicated. For temperatures
outside of tcal + 5 °C (tcal is the ambient temperature when the 5820A was calibrated),
the temperature coefficient is less than 0.1 times the 1-year specification per °C (limited
to 0 °C - 50 °C).

Introduction and Specifications

Specifications

1

If you ordered the GHz Option, the following specification tables are supplemented by
the tables with similar headings in Chapter 5:

• Edge Specifications

• Leveled Sine Wave Specifications

Refer to Figure 1-2 for the dimensional outline of the 5820A Calibrator.

1-5

5820A

Service Manual

EXT TRIG

130V
PK
MAX

SOURCE

30V DC
MAX

MEASURE

CHAN 1-5

AUX
INPUT

CAT

20V PK

CHAN 1

CHAN 3

MAX

OSCILLOSCOPE

5820A

CALIBRATOR • 2GHz

SOURCE/MEASURE

20V PK

MAX

CHAN 2

CHAN 4

EXT TRIG

CHAN 2

CHAN 4

CHAN 5

20V PK

MAX

OPR

STBY

VOLT EDGE LEVSINE MARKER

789

456

123

+

0•

/

43.2 cm (17 in)

PREV

µ

m

k sec

M

MENU

NEW

V

REF

dBm

n

Hz

ENTER

CE

MORE

MODES

CHAN

MULTxDIV

RESET

SETUP

INPUT

AUX

÷

EDIT

FIELD

I

O

17.8 cm
(7 in)

47.0 cm (18.5 in) 6.4 cm
(2.5 in)

For Cable

Access

Figure 1-2. 5820A Calibrator Dimensional Outline

1-7. General Specifications

Table 1-1. General Specifications

Warmup Time Twice the time since last warmed up, to a maximum of 30 minutes
Settling Time 5 seconds or faster for all functions and ranges
Standard Interfaces IEEE-488 (GPIB), RS-232
Temperature Performance Operating: 0 °C to 50 °C

yh003f.eps

1-6

Electromagnetic
Compatibility

Calibration (tcal): 15 °C to 35 °C
Storage: -20 °C to 70 °C
Designed to operate in Standard Laboratory environments where the

Electromagnetic environment is highly controlled. If used in areas with
Electromagnetic fields > 1 V/m, there could be errors in output values.
From 80 -252 MHz, the current output is susceptible to a field strength of
> 0.165 V/M.

Introduction and Specifications

General Specifications

Temperature Coefficient Temperature Coefficient for temperatures outside tcal ±5 °C is 0.1X/°C of

1-year specification.

Relative Humidity Operating: < 80 % to 30 °C, < 70 % to 40 °C,< 40 % to 50 °C

Storage: < 95 %, noncondensing

Altitude Operating: 3,050 m (10,000 ft) maximum

Nonoperating: 12,200 m (40,000 ft) maximum

Safety Designed to comply with IEC 1010-1 (1992-1); ANSI/ISA-S82.01-1994;

CAN/CSA-C22.2 No. 1010.1-92

Interface Impedance The 5820A is designed to drive both 50 Ω and 1MΩ loads.
Analog Low Isolation 20 V
EMC Complies with EN 61326-1
Line Power Line Voltage (selectable): 100 V, 120 V, 220 V, 240 V

Line Frequency: 47 to 63 Hz

1

Line Voltage Variation: ± 10 % about line voltage setting

Power Consumption 250 VA
Dimensions Height: 17.8 cm (7 inches), standard rack increment, plus 1.5 cm

(0.6 inch) for feet on bottom of unit;
Width: 43.2 cm (17 inches), standard rack width
Depth: 47.3 cm (18.6 inches) overall.

Weight 20 kg (44 pounds)

1-7

5820A

Service Manual

1-8. Volt Specifications

Table 1-2. Volt Specifications

Volt Function

Load

Amplitude Characteristics

Range

range resolution

Resolution

Adjustment Range Continuous
1-Year Absolute Uncertainty, tcal ± 5 °C ± (0.25% of

Sequence 1-2-5 (e.g., 10 mV, 20 mV, 50 mV)

Range 10 Hz to 10 kHz
1-Year Absolute Uncertainty, tcal ± 5 °C ± (0.33 ppm of setting)

1mV to 24.999 mV
25 mV to 109.99 mV
110 mV to 2.1999 V

2.2 V to 10.999 V
11 V to 130 V

Square Wave Frequency Characteristics

0 V to ± 6.6 V 0 V to ± 130 V ±1 mV to

output
+ 40 µV)

DC Signal Square Wave Signal [1]

into

50 Ω

into

1 MΩ

± (0.025%
of output +
25 µV)

into

50 Ω

±6.6 V p-p

1 µV

10 µV

100 µV

1 mV

10 mV

± (0.25%
of output
+ 40 µV)

into

1 M Ω

±1 mV to
±130 V p-p

± (0.05%

of output
+ 5 µV) [2]

Typical Aberration (from 50% of
leading/trailing edge)
25 mV to 130 V: within 4 µs
10 mV to 25 mV: within 8 µs
1 mV to 10 mV: within 14 µs

[1] Positive or negat i v e, zero referenced square wave.
[2] Above 1 kHz,

± (0.25% of output + 40 µV). As sumes connectors and cables are in good condition.

< (0.5% of output + 100 µV)

WCaution
Input voltages exceeding 30 V dc may cause damage to the
instrument.

1-9. DC Volt Measure Specifications

Table 1-3. DC Volt Measure Specifications

Voltage Range Voltage Accuracy

DCV ± 10 V maximum with 1 mV resolution 0 to ± 5.99 V - 0.05% ± 1 mV

6 to ± 10 V – 0.25% ± 10 mV

> 1 MΩ input impedance (measure voltage across
1 MΩ input resistor)

1-8

Introduction and Specifications

General Specifications

1-10. Edge Specifications

Note

The GHz Option offers a Fast Edge function. The specifications for the
Fast Edge function can be found in Chapter 5.

Table 1-4. Edge Specifications

1-Year Absolute

Edge Characteristics into 50 Ω Load

Rise Time ≤ 300 ps +0, -100 ps
Amplitude Range (p-p) 4.0 mV to 2.5 V ± (2 % of output + 200 µV)
Resolution 4 digits
Adjustment Range ± 10 % around each sequence

value (indicated below)

Sequence Values 5 mV, 10 mV, 25 mV, 50 mV,

60 mV, 80 mV, 100 mV, 200 mV,
250 mV, 300 mV, 500 mV, 600 mV,

1 V, 2.5 V
Frequency Range [1] 1 kHz to 10 MHz ± (0.33 ppm of setting)
Typical Jitter, edge to trigger < 3 ps (p-p)
Leading Edge Aberrations[2] within 2 ns from 50 % of rising edge < (3 % of output + 2 mV)

2 to 5 ns < (2 % of output + 2 mV)

5 to 30 ns < (1 % of output + 2 mV)

after 30 ns < (0.5 % of output + 2 mV)
Typical Duty Cycle 45 % to 55 %

[1] Frequency range above 2 MHz has rise time specification 350 ps typical.

Uncertainty, tcal ± 5 °C

1

[2] The leading edge aberrations below 250 mV are typical. All readings are referenced to a Tek11801

with an SD26 module or a Tek820 oscilloscope with a 8 GHz bandwidth option.

1-9

5820A

Service Manual

1-11. Leveled Sine Wave Specifi cat ions

Note

The GHz Option offers an extended 600 MHz to 2.1 GHz Leveled Sine
Wave range. If the GHz Option is installed, see the Leveled Sine Wave
Specifications (> 600 MHz ) table in Chapter 5.

Table 1-5. Leveled Sine Wave Specifications (≤ 600 MHz )

Leveled Sine

Wave Frequency Range

Characteristics

into 50 Ω

Amplitude Characteristics

Range (p-p) 5 mV to 5.0 V
Resolution < 100 mV:3 digits

Adjustment
Range

1-Year Absolute
Uncertainty,
tcal ± 5 °C

Flatness [1]
(relative to
50 kHz)

Short-Term
Amplitude
Stability

Frequency Characteristics

Resolution 10 kHz

50 kHz

(reference)

≥ 100 mV:4 digits
continuously adjustable

± (2 % of
output +
300 µV)

not applicable ± (1.5 % of

50 kHz to

100 MHz

± (3.5 % of
output +
300 µV)

output +
100 µV)

100 MHz to

300 MHz

± (4 % of
output +
300 µV)

± (2 % of
output+
100 µV)

≤ 1 %[2]

300 MHz to

500 MHz

± (5.5 % of
output +
300 µV)

± (3.5 % of
output +
100 µV)

500 MHz to

600 MHz

± (6 % of
output +
300 µV)

± (4 % of
output +
100 µV)

1-10

1-Year Absolute
Uncertainty,
tcal ± 5 °C

Distortion Characteristics [3]

2nd Harmonic ≤ -33 dBc
3rd and Higher

Harmonics
[1] As measured near Oscilloscope bandwidth frequency.

[2] Within one hour after reference amplitude setting, provided temperature varies no more than ± 5 °C.

[3] Harmonics above 500 MHz are typical.

± 0.33 ppm

≤ -38 dBc

1-12. Time Marker Specifi cat ions

If you ordered the GHz Option, the following specification table is
superseded by the table with the same heading in Chapter 5.

Table 1-6. Time Marker Specifications

Time Marker into 50 Ω

5 s to

50 ms

Note

20 ms to

100 ns

Introduction and Specifications

50 ns to

20 ns 10 ns

General Specifications

5 ns to 2

ns

1

Wave Shape spike or

square
Typical Output Level > 1 V p-p [1] > 1 V p-p [1] > 1 V p-p [1] >1 V p-p [1] > 1 V p-p
Typical Jitter (p-p) < 10 ppm < 1 ppm < 1 ppm < 1 ppm < 1 ppm

Sequence 5-2-1 from 5 s to 2 ns (e.g., 500 ms, 200 ms, 100 ms )
Adjustment Range At least ± 10 % around each sequence value indicated above.
Amplitude Resolution 4 digits
1-Year Absolute

Uncertainty, tcal ± 5 °C
[3]

[1] Typical rise time of square wave and 20%-pulse (20 % duty cycle pulse) is < 1.5 ns.
[2] With 10 MHz external reference selected, the uncertainty becomes that of the external clock plus 5 µHz.
[3] Time marker uncertainty is ± 50 ppm when measured off of cardinal points:

5 s, 2 s, 1 s, 500 ms, 200 ms, 100 ms, 50 ms, 20 ms, 10 ms, 5 ms, 2 ms, 1 ms, 500 µs, 200 µs, 100µs,
50 µs, 20 µs, 10 µs, 5 µs, 2 µs, 1 µs, 500 ns, 200 ns, 100 ns, 50 ns, 20 ns, 10 ns, 5 ns and 2 ns

± (2.5 ppm
+ 5 µHz) [2]

spike, square,
or 20%-pulse

± 0.33 ppm ± 0.33 ppm ± 0.33 ppm ± 0.33 ppm

spike or
square

square or
sine

sine

1-11

5820A

Service Manual

1-13. Wave Generator Specifi cat ions

Amplitude

Range into 1 MΩ: 1.8 mV to 55 V p-p

Wave Generator

Characteristics

Table 1-7. Wave Generator Specifications

Square Wave and Sine Wave

into 50 Ω or 1 MΩ

into 1 MΩ: 1.8 mV to 55 V p-p

Triangle Wave

into 50 Ω or 1 MΩ

into 50 Ω: 1.8 mV to 2.5 V p-p

1-Year Absolute Uncertainty,
tcal ± 5 °C, 10 Hz to 10 kHz

Sequence 1-2-5 (e.g., 10 mV, 20 mV, 50 mV) 1-2-5 (e.g., 10 mV, 20 mV, 50 mV)
Typical DC Offset Range 0 to ± (≥40 % of p-p amplitude) [1] 0 to ± (≥40 % of p-p amplitude) [1]
Ramp Linearity [2] better than 0.1 % 10 Hz to 10 kHz

Frequency

Range 0.01 Hz to 100 kHz 0.01 Hz to 100 kHz
Resolution 4 or 5 digits depending upon

1-Year Absolute Uncertainty,
tcal ± 5 °C [5]

[1] The DC offset plus the wave signal must not exceed 30 V rms.
[2] Applies to the 10 % to 90 % of the triangle waveform 500 mV p-p to 10 V p-p.
[3] No specification below 10 Hz or above 10 kHz.
[4] With 10 MHz external reference selected, the uncertainty becomes that of the external clock plus 5 µHz.
[5] Uncertainties below 10 Hz are typical.
[6] Square wave rise/fall time typically less than 500 ns.

± (3 % of p-p output + 100 µV) ± (3 % of p-p output + 100 µV)

frequency
± (2.5 ppm + 5 µHz) [4] ± (2.5 ppm + 5 µHz) [4]

into 50 Ω: 1.8 mV to 2.5 V p-p

[3]

4 or 5 digits depending upon
frequency

1-12

1-14. 1 ns Pulse Generator Specif i cations

Table 1-8. Pulse Generator Specifications

Introduction and Specifications

General Specifications

1

Pulse Generator Characteristics

Typical Rise/fall Time ≤ 500 ps
Typical Available Amplitudes 1.5 V, 600 mV, 150 mV,60 mV,15 mV

Pulse Width

Range [1] 1 ns to 500 ns
Uncertainty 5% ± 200 ps

Pulse Period

Pulse width < 1 ns 20 ms to 200 ns
1 ns ≤ Pulse width ≤ 9.9 ns 20 ms to 200 ns
10 ns ≤ Pulse width ≤ 79.9 ns 20 ms to 2 µs

80 ns ≤ Pulse width ≤ 500 ns 20 ms to 10 µs
Resolution 4 or 5 digits depending upon frequency and width

1-Year Absolute Uncertainty, tcal ± 5 °C ± 0.33 ppm

Pulse Skew with Trigger[3]

Range [2] +30 ns to -10ns with 250 ps resolution
Uncertainty [4] ± 500 ps

[1] May generate pulses below 1ns but pulse width accuracy is not specified.
[2] Assumes that trigger used in divide by 1 mode. Other divide modes are not specified.
[3] Pulse skew measured from 30% of trigger signal amplitude to 30% of pulse range amplitude.
[4] Uncertainty specification applies only for pulse periods that are 3 µs or greater in duration.
Otherwise, skew uncertainty is typical.

Positive pulse into 50 Ω

1-15. Trigger Signal Specif ications (Pulse Function)

Table 1-9. Trigger Signal Specifications (Pulse Function)

Pulse Period Division Ratio Amplitude into 50 Ω

(p-p)

20 ms to 200 ns off/1/10/100 ≥ 1 V ≤ 2 ns

Skew between Pulse and Trigger programmable from -10 ns to +30 ns

Typical Rise Time

1-16. Trigger Signal Specif ications (Time Marker Function)

Table 1-10. Trigger Signal Specifications (Time Marker Function)

Pulse Period Division Ratio [1] Amplitude into 50 Ω (p-p) Typical Rise Time

5 s to 750 ns off/1 ≥ 1 V ≤ 2 ns

34.9 ms to 7.5 ns off/10 ≥ 1 V ≤ 2 ns

34.9 ms to 2 ns off/1/10/100 ≥ 1 V ≤ 2 ns

1-13

5820A

Service Manual

1-17. Trigger Signal Specif ications (Edge Function)

Table 1-11. Trigger Signal Specifications (Edge Function)

Edge Signal

Frequency

1 kHz to 10 MHz off/1 ≥ 1 V ≤ 2 ns 40 ns

Division

Ratio

Typical Amplitude

into 50 Ω (p-p) Typical Rise Time Typical Lead Time

1-18. Trigger Signal Specif ications (Square Wave Voltage Function)

Table 1-12. Trigger Signal Specifications (Square Wave Voltage Function)

Edge Signal

Frequency

10 Hz to 10 kHz off/1 ≥ 1 V ≤ 2 ns 2 µs

Division

Ratio

Typical Amplitude

into 50 Ω (p-p) Typical Rise Time Typical Lead Time

1-19. Trigger Signal Specif ications (TV)

Table 1-13. TV Trigger Signal Specifications

Trigger Signal Type Parameters

Frame Formats Selectable NTSC, SECAM, PAL, PAL-M
Polarity Positive or negative
Amplitude into 50 Ω (p-p) Adjustable 0 to 1.5 V p-p into 50 ohm load, (±7 % accuracy)
Line Marker Selectable Line Video Marker

1-20. Tunnel Diode Drive Capability

Table 1-14. Tunnel Diode Drive Capability

TD Pulse Drive Square wave at 100 Hz to 100 kHz with variable amplitude of 60 to 100 V p-p

1-21. Oscilloscope I nput Resistance Measurement Specifications

Table 1-15. Oscilloscope Input Resistance Measurement Specifications

Scope Input Selected 50 Ω 1 MΩ

Measurement Range 40 Ω to 60 Ω 500 kΩ to 1.5 MΩ
Uncertainty 0.1 % 0.1 %

1-22. Oscilloscope I nput Capacitance Measurement Specifications

Table 1-16. Oscilloscope Input Capacitance Measurement Specifications

Scope Input Selected 1 MΩ

Measurement Range 5 pF to 50 pF
Uncertainty ± (5 % of input + 0.5 pF) [1]
[1] Measurement made within 30 minutes of capacitance zero reference.

1-14

1-23. Overload Measurement Speci f ications

The Overload test function applies dc or ac (1 kHz square wave) power into the 50 Ω
oscilloscope input and monitors the current. A time measurement counter indicates the
time duration of the applied overload signal. When the input protection circuit reacts and
opens up the 50 Ω load, the calibrator indication is set to ‘off’ on the right hand display.

In order to prevent front end damage to the oscilloscope, a limited amount of energy is
applied by a user selectable time limit.

Table 1-17. Overload Measurement Specifications

Introduction and Specifications

General Specifications

1

Source

Voltage

5 V to 9 V 100 mA to 180 mA 10 mA setable 5 to 60 sec

Typical ‘On’ current

indication

Typical ‘Off’ current

indication

Maximum Time Limit DC or

AC (1 kHz)

1-24. External Reference Input Speci f ications

The External Reference Input selection allows the user to provide their own high
stability 10 MHz reference clock for the 5820A for all functions except the Wave
Generator function. For all other modes, the frequency stability is determined by the
external reference stability. The external reference input must be between 1 to 5 V p-p.

1-25. Auxiliary Input Specifications

Maximum input voltage into the auxiliary input is 40 V p-p.

Table 1-18. Auxiliary Input Performance

Channel Configuration Frequency Typical Loss Typical VSWR

1-Channel < 600 MHz ≤ 1.1 dB ≤ 1.2:1
1-Channel 600 MHz to 1 GHz ≤ 1.3 dB ≤ 1.4:1
1-Channel 1 GHz to 2.0 GHz ≤ 2.0 dB ≤1.7:1
1-Channel 2 GHz to 3 GHz ≤ 3.0 dB ≤ 2.0:1
5-Channel < 600 MHz ≤ 1.1 dB ≤ 1.2:1
5-Channel 600 MHz to 1 GHz ≤ 1.3 dB ≤ 1.4:1
5-Channel 1 GHz to 2.0 GHz ≤ 2.0 dB ≤ 1.7:1
5-Channel 2 GHz to 3 GHz ≤ 3.0 dB ≤ 2.0:1

1-26. Current Output Speci f i cations

Table 1-19. Current Output Specifications

DC Squarewave

Amplitude (compliance voltage 2 V max) ± 100 µA to ± 100 mA 100 µAp-p to 100 mAp-p

Accuracy ± (0.25% + 0.5 µA) ± (0.25% + 0.5 µA) [1]

Frequency Range N/A 10 Hz to 100 KHz

Accuracy 2.5 ppm +5 µHz
Steps 1,2,5 or continuous

[1] Amplitude uncertainty for frequency range 45 Hz to 1 kHz at < 120 mV compliance voltage.

1-15

5820A

Service Manual

1-16

Chapter 2

Theory of Operation

Title Page

2-1. Introduction........................................................................................... 2-3

2-2. Voltage Mode................................................................................... 2-7

2-3. Edge Mode........................................................................................ 2-7

2-4. Leveled Sine Wave Mode ................................................................ 2-7

2-5. Time Marker Mode .......................................................................... 2-7

2-6. Wave Generator Mode ..................................................................... 2-8

2-7. Pulse Generator ................................................................................ 2-8

2-8. Input DC Voltage Measurement Mode ............................................ 2-8

2-9. Input Impedance Mode (Resistance)................................................ 2-8

2-10. Input Impedance Mode (Capacitance).............................................. 2-8

2-11. Current Module ................................................................................ 2-9

2-12. Overload Mode................................................................................. 2-9

2-13. Trigger.............................................................................................. 2-9

2-14. High Frequency Switching............................................................... 2-9

2-15. 5 Channel Option.............................................................................. 2-9

2-16. GHz Option Module......................................................................... 2-9

2-1

5820A

Service Manual

2-2