Atec TDS640A User Manual

Digital Real-Time™ Oscilloscopes

TDS 684B • TDS 680B • TDS 644B • TDS 620B • TDS 640A

See Tektronix on the World Wide Web:
http://www.tek.com

Tektronix measurement products
are manufactured in ISO
registered facilities.

Product(s) complies with IEEE Standard

488.2-1987, and with Tektronix Standard
Codes and Formats.

Features

• 1 GHz and 500 MHz Bandwidth

• 5 GS/s and 2.5 GS/s Sample Rates

• 4 and 2 Input Channels

• 8-Bit Vertical Resolution

• Greater than 11-Bits with Averaging

• Record Length to 15,000 Points

• 1 mV/div to 10 V/div Sensitivity

• 1.5% Vertical Accuracy

• Waveform Math and Advanced
Waveform DSP

• 1 ns Peak Detect (not available w/TDS 640A)

• Channel Deskew (not available w/TDS 640A)

• Fully Automated Measurement System

TDS 684B

• Waveform Pass/Fail Template Testing

• Color VGA Display

• 3.5 in. DOS Format Floppy Drive

• RS-232, Centronics, GPIB and VGA I/O
Ports

Your designs may be digital but at today’s speeds, many of your toughest problems aren’t.
Crosstalk noise. Transmission effects. Ground bounce. Not to mention sub-nanosecond edges.
Today’s design problems require high bandwidth oscilloscopes that can measure up to these
challenges. The Digital Real-Time™architecture of the TDS 600 Series simplifies capturing inter­mittent signals or non-recurring problems like glitches or metastable states caused by setup
and hold time violations.

Applications

• Digital Design Characterization and
Verification

TDS 600 Series provides design engineers excellent single shot accuracy for multi-channel,
high speed signal characterization. Additional features and specifications of the TDS 600 Series
are explained in the TDS Reference section of the Textronix Test and Measurement Catalog or
on the World Wide Web at www.tek.com.

• Telecommunications/Datacommunications

• Transient Event Capture

• High Energy Physics

TDS 640A TDS 620B TDS 644B TDS 680B TDS 684B

Total Channels 4 2 + 2 4 2 + 2 4
Sample Rate 2 GS/s 2.5 GS/s 2.5 GS/s 5 GS/s 5 GS/s

(all channels simultaneously)
Real-time Bandwidth 500MHz 500MHz 500MHz 1 GHz 1 GHz
Maximum Record 2,000 pts 15,000 pts 15,000 pts 15,000 pts 15,000 pts

Length per Channel
Vertical Resolution 8-Bits; >11-Bits with averaging
Time Measurement <110 ps <100 ps <100 ps <50 ps <50 ps

Accuracy @ 2 GS/s @ 2.5 GS/s @ 2.5 GS/s @ 5 GS/s @ 5 GS/s
Advanced Waveform Std. Std. Std. Std. Std.

DSP/Math
Standard Probes 4 P6139A 2 P6139A 4 P6243 None None
Display Type 7 in. mono 7 in. mono 7 in. color 7 in. mono 7 in. color
Disk Drive Std. Std. Std. Std. Std.
GPIB Port Std. Std. Std. Std. Std.
RS-232 & Centronics Std. Std. Std. Std. Std.
VGA I/O Port Printer Ports Std. Mono Std. Mono Std. Color Std. Mono Std. Color

Digital Real-Time™ Oscilloscopes

TDS 684B • TDS 680B • TDS 644B • TDS 620B • TDS 640A

ORDERI NG INFORMA TION

TIME BASE SYSTEM
Time Bases – Main and Delayed.
Time/div Range – 200 ps/div to 10 s/div.

Except TDS 640A: 500 ps/div to 5 s/div.
Time Base Accuracy – Over Any Interval

>1 ms ±100 ppm.
Record Length per Channel – 500 to 15,000

pts. Except TDS 640A: 500 to 2,000 pts.

VERTICAL SYSTEM
Vertical Resolution – 8-Bits (>11-Bits with

averaging).
Maximum Input Voltage – 300 V CAT II ±400

V peak. Derate at 20 dB/decade above 1 MHz.

DC Gain Accuracy – 1.50%
Bandwidth Selections – 20 MHz, 250 MHz,

and Full.

Input Impedance Selections – 1 MΩ in par-
allel with 10 pF, or 50 Ω (AC and DC cou­pling).

Input Coupling – AC, DC or GND.
Acquisition Modes – Peak Detect (TDS 620B,

TDS 644B: 1 ns; TDS 680B, TDS 684B:
<1 ns), Sample, Single Sequence, Envelope,
Average.

TRIGGERING SYSTEM
Trigger Types – Edge (main and delayed);

Pulse (Width, Glitch, Runt, Slew Rate*1, Time
Out*1); Logic (Pattern, State, and Setup &
Hold Time Violation*1); HDTV Video
(optional).

Automatic Measurements – 25 (on entire
record or gated region).

Waveform Functions – Interpolation (sin(x)/x
or linear), Average, Envelope, Auto Setup.

C H A R A C T E R I S T I C S

Measurement Accuracy – TDS 680B/684B:
<50 ps typical @ 5 GS/s single shot;
TDS 620B/644B: <100 ps typical @ 2.5 GS/s
single shot.TDS 640A: <110 ps @ 2 GS/s
single shot.

Advanced Waveform Functions – FFT,
Integration, Differentiation, Waveform (math
or acquired) Limit Testing.

RECOMMENDED ACCESSORIES

K420 – Instrument Cart.
P6243 – 1 GHz Active Probe.
P6563A – 500 MHz, 20X SMD Probe.
SureFoot®– Surface Mount Device Interconnects.
P6245 – 1.5 GHz, FET Probe.
WaveStar™ – Software (WSTR31).

*1Not available in TDS 640A.

TDS 684B

Four-channel Color 1 GHz, 5 GS/s Per Channel
Digital Real-Time Oscilloscope.

TDS 680B

Two-channel Monochrome 1 GHz, 5 GS/s Per
Channel Digital Real-Time Oscilloscope.

TDS 644B

Four-channel Color 500MHz, 2.5 GS/s Per Channel
Digital Real-Time Oscilloscope.
Includes: Four P6243 FET Probes.

TDS 640A

Four-channel Monochrome 500MHz, 2.0 GS/s Per
Channel Digital Real-Time Oscilloscope.
Includes: Four P6139A Passive Probes.

TDS 620B

Two-channel Monochrome 500MHz, 2.5 GS/s Per
Channel Digital Real-Time Oscilloscope.

Includes: Two P6139A Passive Probes.

All Include (except where noted): User Manual

(070-9869-00);

Quick Reference Guide (070-9382-00);
Programmer’s Manual in MS-Help format on flop-

py disk (063-2773-00);

Technical Reference Manual (070-9874-02);
Front Cover (200-3696-00);
North American Power Cord (161-0230-01);
Accessory Pouch (TDS 644B/TDS 684B Only: 016-

1268-00).

OPTIONS AVAILABLE (EXCEPT WHERE
NOTED)

Opt. 05 – Video Trigger, NTSC, PAL, HDTV,
FlexFormat™.

Opt. 1K – Model K420 Instrument Cart.
Opt. 1R – Rackmount Kit.
Opt. 2D – (TDS 620B only) Delete Standard two

P6139A Probes.

Opt. 24 – Add four P6139A 10X Passive Probes.
Opt. 26 – (TDS 684B only) Add four P6245 1.5

GHz, 1pF FET Probes.

Opt. 27 – (TDS 680B only) Add two P6245 1.5 GHz,
1 pF FET Probes.

Opt. 4D – (TDS 644B only) Delete Standard four
P6243 FET Probes.

Opt. D1 – Calibration Data Report.

INTERNATIONAL POWER PLUG OPTIONS

Opt. A1 – Opt. A5 available.

MEASUREMENT SERVICE OPTIONS

Opt. C3 – Three years of Calibration Services.
Opt. C5 – Five years of Calibration Services.
Opt. D3 – Test Data (requires Opt. C3).
Opt. D5 – Test Data (requires Opt. C5).
Opt. R5 – Repair warranty extended to cover five

years.

For further information, contact Tektronix:

World Wide Web: http://www.tek.com; ASEAN Countries (65) 356-3900; Australia & New Zealand 61 (2) 888-7066; Austria, Eastern Europe, & Middle East [phone]; Belgium +32 (2) 715.89.70;
Brazil and South America 55 (11) 3741-8360; Canada 1 [phone]; Denmark [phone]; Finland [phone]; France & North Africa [phone]; Germany + 49 (221) 94 77 400;
Hong Kong (852) 2585-6688; India (91) 80-2275577; Italy [phone]; Japan (Sony/Tektronix Corporation) 81 (3) 3448-3111; Mexico, Central America, & Caribbean 52 (5) 666-6333;
The Netherlands [phone]; Norway [phone]; People’s Republic of China 86 (10) 6235 1230; Republic of Korea 82 (2) 528-5299; South Africa (27 11)651-5222; Spain & Portugal [phone];
Sweden [phone]; Switzerland [phone]; Taiwan 886 (2) 722-9622; United Kingdom & Eire [phone]; USA 1 [phone].

From other areas, contact: Tektronix, Inc. Export Sales, P.O. Box 500, M/S 50-255, Beaverton, Oregon 97077-0001, USA 1 [phone].

Copyright © 1998, Tektronix, Inc. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this
publication supersedes that in all previously published material. Specification and price change privileges reserved. TEKTRONIX and TEK are registered
trademarks of Tektronix, Inc. All other trade names referenced are the service marks, trademarks, or registered trademarks of their respective companies.

4/98 HB/XBS 55W-10066-5