ANALOG DEVICES AD 8602 ARMZ Datasheet

Precision CMOS, Single-Supply, Rail-to-Rail,

Input/Output Wideband Operational Amplifiers

FEATURES

Low offset voltage: 500 μV maximum Single-supply operation: 2.7 V to 5.5 V Low supply current: 750 μA/Amplifier Wide bandwidth: 8 MHz Slew rate: 5 V/μs Low distortion No phase reversal Low input currents Unity-gain stable Qualified for automotive applications

APPLICATIONS

Current sensing Barcode scanners PA controls Battery-powered instrumentation Multipole filters Sensors ASIC input or output amplifiers Audio

GENERAL DESCRIPTION

The AD8601, AD8602, and AD8604 are single, dual, and quad rail-to-rail, input and output, single-supply amplifiers featuring very low offset voltage and wide signal bandwidth. These amplifiers use a new, patented trimming technique that achieves superior performance without laser trimming. All are fully specified to operate on a 3 V to 5 V single supply.

The combination of low offsets, very low input bias currents, and high speed make these amplifiers useful in a wide variety of applications. Filters, integrators, diode amplifiers, shunt current sensors, and high impedance sensors all benefit from the combination of performance features. Audio and other ac applications benefit from the wide bandwidth and low distortion. For the most cost-sensitive applications, the D grades offer this ac performance with lower dc precision at a lower price point.

Applications for these amplifiers include audio amplification for portable devices, portable phone headsets, bar code scanners, portable instruments, cellular PA controls, and multipole filters.

The ability to swing rail-to-rail at both the input and output enables designers to buffer CMOS ADCs, DACs, ASICs, and other wide output swing devices in single-supply systems.

AD8601/AD8602/AD8604

PIN CONFIGURATIONS

OUT A

1

AD8601

TOP VIEW

V–

2

(Not to S cale)

+IN

3

Figure 1. 5-Lead SOT-23 (RJ Suffix)

OUT A

1

AD8602

2

–IN A

+IN A

V–

TOP VIEW

3

(Not to S cal e)

4

Figure 2. 8-Lead MSOP (RM Suffix) and 8-Lead SOIC (R-Suffix)

1

OUT A

2

–IN A

3

+IN A

+IN B –IN B

OUT B

V+

AD8604

TOP VIEW

4

(Not to Scale)

5

6

7

Figure 3. 14-Lead TSSOP (RU Suffix) and 14-Lead SOIC (R Suffix)

1

OUT A

2

–IN A

3

+IN A

+IN B –IN B

OUT B

NC NC

AD8604

TOP VIEW

4

V+

(Not to Scale)

5

6

7

8

NC = NO CONNECT

Figure 4. 16-Lead Shrink Small Outline QSOP (RQ Suffix)

The AD8601, AD8602, and AD8604 are specified over the extended industrial (−40°C to +125°C) temperature range. The AD8601, single, is available in a tiny, 5-lead SOT-23 package. The AD8602, dual, is available in 8-lead MSOP and 8-lead, narrow SOIC surface-mount packages. The AD8604, quad, is available in 14-lead TSSOP, 14-lead SOIC, and 16-lead QSOP packages. See the Ordering Guide for automotive grades.

5

4

8 7 6 5

14 13

12

11

10

9

8

16

15

14

13

12

11

10

9

V+

–IN

V+ OUT B –IN B +IN B

OUT D –IN D +IN D V– +IN C –IN C OUT C

OUT D

–IN D +IN D V– +IN C –IN C OUT C

01525-001

01525-002

01525-003

01525-004

Rev. G

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No

rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners.

Trademarks and registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com

AD8601/AD8602/AD8604

REVISION HISTORY

1/11—Rev. F to Rev. G

Changes to Ordering Guide.......................................................... 22

Change to Automotive Products Section .................................... 22

5/10—Rev. E to Rev. F

Changes to Features Section and General Description

Section................................................................................................ 1

Changes to Ordering Guide.......................................................... 22

Added Automotive Products Section .......................................... 22

2/10—Rev. D to Rev. E

Add 16-Lead QSOP............................................................Universal

Changes to Table 3 and Table 4....................................................... 5

Updated Outline Dimensions....................................................... 19

Changes to Ordering Guide.......................................................... 22

Input Overvoltage Protection................................................... 16

Overdrive Recovery ................................................................... 16

Power-On Time.......................................................................... 16

Using the AD8602 in High Source Impedance

Applications ................................................................................ 16

High Side and Low Side, Precision Current Monitoring ...... 16

Using the AD8601 in Single-Supply, Mixed Signal

Applications ................................................................................ 17

PC100 Compliance for Computer Audio Applications ........ 17

SPICE Model............................................................................... 18

Outline Dimensions....................................................................... 19

Ordering Guide .......................................................................... 22

Automotive Products................................................................. 22

11/03—Rev. C to Rev. D

Changes to Features ..........................................................................1

Changes to Ordering Guide.............................................................4

3/03—Rev. B to Rev. C

Changes to Features ..........................................................................1

3/03—Rev. A to Rev. B

Change to Features............................................................................1

Change to Functional Block Diagrams...........................................1

Change to TPC 39 .......................................................................... 11

Changes to Figures 4 and 5 ........................................................... 14

Changes to Equations 2 and 3................................................. 14, 15

Updated Outline Dimensions....................................................... 16



Rev. G | Page 2 of 24

AD8601/AD8602/AD8604

SPECIFICATIONS

ELECTRICAL CHARACTERISTICS

VS = 3 V, VCM = VS/2, TA = 25°C, unless otherwise noted.

Table 1.

A Grade D Grade Parameter Symbol Conditions Min Typ Max Min Typ Max Unit

INPUT CHARACTERISTICS

Offset Voltage (AD8601/AD8602) VOS 0 V ≤ VCM ≤ 1.3 V 80 500 1100 6000 μV

−40°C ≤ TA ≤ +85°C 700 7000 μV

−40°C ≤ TA ≤ +125°C 1100 7000 μV 0 V ≤ VCM ≤ 3 V1 350 750 1300 6000 μV

−40°C ≤ TA ≤ +85°C 1800 7000 μV

−40°C ≤ TA ≤ +125°C 2100 7000 μV Offset Voltage (AD8604) VOS VCM = 0 V to 1.3 V 80 600 1100 6000 μV

−40°C ≤ TA ≤ +85°C 800 7000 μV

−40°C ≤ TA ≤ +125°C 1600 7000 μV V

= 0 V to 3.0 V1

CM

−40°C ≤ TA ≤ +85°C 2200 7000 μV

−40°C ≤ TA ≤ +125°C 2400 7000 μV

Input Bias Current IB 0.2 60 0.2 200 pA

−40°C ≤ TA ≤ +85°C 25 100 25 200 pA

−40°C ≤ TA ≤ +125°C 150 1000 150 1000 pA

Input Offset Current IOS 0.1 30 0.1 100 pA

−40°C ≤ TA ≤ +85°C 50 100 pA

−40°C ≤ TA ≤ +125°C 500 500 pA

Input Voltage Range 0 3 0 3 V Common-Mode Rejection Ratio CMRR VCM = 0 V to 3 V 68 83 52 65 dB Large Signal Voltage Gain AVO V

= 0.5 V to 2.5 V,

O

= 2 kΩ, VCM = 0 V

R

L

Offset Voltage Drift ΔVOS/ΔT 2 2 μV/°C

OUTPUT CHARACTERISTICS

Output Voltage High VOH IL = 1.0 mA 2.92 2.95 2.92 2.95 V –40°C ≤ TA ≤ +125°C 2.88 2.88 V Output Voltage Low VOL IL = 1.0 mA 20 35 20 35 mV

−40°C ≤ TA ≤ +125°C 50 50 mV

Output Current I Closed-Loop Output Impedance Z

±30 ±30 mA

OUT

f = 1 MHz, AV = 1 12 12 Ω

OUT

POWER SUPPLY

Power Supply Rejection Ratio PSRR VS = 2.7 V to 5.5 V 67 80 56 72 dB Supply Current/Amplifier ISY VO = 0 V 680 1000 680 1000 μA

−40°C ≤ TA ≤ +125°C 1300 1300 μA DYNAMIC PERFORMANCE

Slew Rate SR RL = 2 kΩ 5.2 5.2 V/μs Settling Time tS To 0.01% <0.5 <0.5 μs Gain Bandwidth Product GBP 8.2 8.2 MHz Phase Margin Φo 50 50 Degrees

NOISE PERFORMANCE

Voltage Noise Density en f = 1 kHz 33 33 nV/√Hz f = 10 kHz 18 18 nV/√Hz Current Noise Density in 0.05 0.05 pA/√Hz

1

For VCM between 1.3 V and 1.8 V, VOS may exceed specified value.

Rev. G | Page 3 of 24

350 800 1300 6000 μV

30 100 20 60 V/mV

AD8601/AD8602/AD8604

VS = 5.0 V, VCM = VS/2, TA = 25°C, unless otherwise noted.

Table 2.

A Grade D Grade Parameter Symbol Conditions Min Typ Max Min Typ Max Unit

INPUT CHARACTERISTICS

Offset Voltage (AD8601/AD8602) VOS 0 V ≤ VCM ≤ 5 V 80 500 1300 6000 μV

−40°C ≤ TA ≤ +125°C 1300 7000 μV Offset Voltage (AD8604) VOS VCM = 0 V to 5 V 80 600 1300 6000 μV

−40°C ≤ TA ≤ +125°C 1700 7000 μV Input Bias Current IB 0.2 60 0.2 200 pA

−40°C ≤ TA ≤ +85°C 100 200 pA

−40°C ≤ TA ≤ +125°C 1000 1000 pA Input Offset Current IOS 0.1 30 0.1 100 pA

−40°C ≤ TA ≤ +85°C 6 50 6 100 pA

−40°C ≤ TA ≤ +125°C 25 500 25 500 pA Input Voltage Range 0 5 0 5 V Common-Mode Rejection Ratio CMRR VCM = 0 V to 5 V 74 89 56 67 dB Large Signal Voltage Gain AVO

= 0.5 V to 4.5 V,

V

O

= 2 kΩ, VCM = 0 V

R

L

Offset Voltage Drift ΔVOS/ΔT 2 2 μV/°C

OUTPUT CHARACTERISTICS

Output Voltage High VOH IL = 1.0 mA 4.925 4.975 4.925 4.975 V I

= 10 mA 4.7 4.77 4.7 4.77 V

L

−40°C ≤ TA ≤ +125°C 4.6 4.6 V Output Voltage Low VOL IL = 1.0 mA 15 30 15 30 mV I

= 10 mA 125 175 125 175 mV

L

−40°C ≤ TA ≤ +125°C 250 250 mV Output Current I Closed-Loop Output Impedance Z

±50 ±50 mA

OUT

f = 1 MHz, AV = 1 10 10 Ω

OUT

POWER SUPPLY

Power Supply Rejection Ratio PSRR VS = 2.7 V to 5.5 V 67 80 56 72 dB Supply Current/Amplifier I

V

SY

= 0 V 750 1200 750 1200 μA

O

−40°C ≤ TA ≤ +125°C 1500 1500 μA DYNAMIC PERFORMANCE

Slew Rate SR RL = 2 kΩ 6 6 V/μs Settling Time tS To 0.01% <1.0 <1.0 μs Full Power Bandwidth BWp <1% distortion 360 360 kHz Gain Bandwidth Product GBP 8.4 8.4 MHz Phase Margin Φo 55 55 Degrees

NOISE PERFORMANCE

Voltage Noise Density en f = 1 kHz 33 33 nV/√Hz f = 10 kHz 18 18 nV/√Hz Current Noise Density in f = 1 kHz 0.05 0.05 pA/√Hz

30 80 20 60 V/mV

Rev. G | Page 4 of 24

AD8601/AD8602/AD8604

ABSOLUTE MAXIMUM RATINGS

Table 3.

Parameter Rating

Supply Voltage 6 V Input Voltage GND to VS Differential Input Voltage ±6 V Storage Temperature Range −65°C to +150°C Operating Temperature Range −40°C to +125°C Junction Temperature Range −65°C to +150°C Lead Temperature Range (Soldering, 60 sec) 300°C ESD 2 kV HBM

Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

THERMAL RESISTANCE

θJA is specified for worst-case conditions, that is, a device soldered onto a circuit board for surface-mount packages using a standard 4-layer board.

Table 4. Thermal Resistance

Package Type θJA θ

5-Lead SOT-23 (RJ) 190 92 °C/W 8-Lead SOIC (R) 120 45 °C/W 8-Lead MSOP (RM) 142 45 °C/W 14-Lead SOIC (R) 115 36 °C/W 14-Lead TSSOP (RU) 112 35 °C/W 16-Lead QSOP (RQ) 115 36 °C/W

Unit

JC

ESD CAUTION

Rev. G | Page 5 of 24

AD8601/AD8602/AD8604

TYPICAL PERFORMANCE CHARACTERISTICS

3,000

2,500

VS = 3V T

= 25°C

A

V

= 0V TO 3V

CM

60

50

VS = 5V T

= 25°C TO 85°C

A

2,000

1,500

1,000

QUANTITY (Amplifiers)

500

0 –1.0 –0.8 –0.6 –0.4 –0.2 0 0.2 0.4 0.6 0.8 1.0

INPUT OFFSET VOLTAGE (mV)

Figure 5. Input Offset Voltage Distribution

3,000

VS = 5V T

= 25°C

A

V

= 0V TO 5V

CM

2,500

2,000

1,500

1,000

QUANTITY (Amplifiers)

500

40

30

20

QUANTITY (Amplifiers)

10

0

012345678910

01525-005

TCVOS (µV/°C)

01525-008

Figure 8. Input Offset Voltage Drift Distribution

1.5 VS = 3V

= 25°C

T

A

1.0

0.5

0

–0.5

–1.0

INPUT OFFSET VOLTAGE (mV)

–1.5

0 –1.0 –0.8 –0.6 –0.4 –0.2 0 0.2 0.4 0.6 0.8 1.0

INPUT OFFSET VOLTAGE (mV)

Figure 6. Input Offset Voltage Distribution

60

50

40

30

20

QUANTITY ( Amp lifiers)

10

0

012345678910

TCVOS (µV/°C)

VS = 3V T

= 25°C TO 85°C

A

Figure 7. Input Offset Voltage Drift Distribution

–2.0

0 0.5 1.0 1.5 2.0 2.5 3.0

01525-006

COMMON-MO DE VO LTAGE (V)

01525-009

Figure 9. Input Offset Voltage vs. Common-Mode Voltage

1.5 VS = 5V

= 25°C

T

A

1.0

0.5

0

–0.5

–1.0

INPUT OFFSET VOLTAGE (mV)

–1.5

–2.0

01234

01525-007

COMMON-MODE VOLTAGE ( V)

5

01525-010

Figure 10. Input Offset Voltage vs. Common-Mode Voltage

Rev. G | Page 6 of 24

AD8601/AD8602/AD8604

300

VS = 3V

250

30

VS = 3V

25

200

150

100

INPUT BIAS CURRENT (pA)

50

0

–40 –25 –105 203550658095110125

TEMPERATURE ( °C)

Figure 11. Input Bias Current vs. Temperature

300

VS = 5V

250

200

150

100

INPUT BIAS CURRENT (pA)

50

20

15

10

INPUT OFF SE T CURRENT (pA)

5

0

–40 –25 –105 203550658095110125

01525-011

TEMPERATURE ( °C)

01525-014

Figure 14. Input Offset Current vs. Temperature

30

VS = 5V

25

20

15

10

INPUT OFF SE T CURRENT (pA)

5

0

–40 –25 –105 203550658095110125

TEMPERATURE ( °C)

Figure 12. Input Bias Current vs. Temperature

5

VS = 5V

= 25°C

T

A

4

3

2

INPUT BIAS CURRENT (pA)

1

0

0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

COMMON-MODE VOLTAGE (V)

Figure 13. Input Bias Current vs. Common-Mode Voltage

0

–40 –25 –105 203550658095110125

01525-012

TEMPERATURE ( °C)

01525-015

Figure 15. Input Offset Current vs. Temperature

10k

VS = 2.7V

= 25°C

T

A

1k

100

SOURCE

10

OUTPUT VOLTAGE (mV)

1

0.1

0.001 0.01 0.1 1 10 100

01525-013

LOAD CURRENT (mA)

SINK

01525-016

Figure 16. Output Voltage to Supply Rail vs. Load Current

Rev. G | Page 7 of 24

AD8601/AD8602/AD8604

10k

VS = 5V T

= 25°C

A

1k

35

30

25

VS = 2.7V

100

10

OUTPUT VOLTAGE (mV)

1

0.1

0.001 0.01 0.1 1 10 100

SOURCE

SINK

LOAD CURRENT (mA)

Figure 17. Output Voltage to Supply Rail vs. Load Current

5.1 VS = 5V

5.0

VOH @ 1mA LOAD

4.9

4.8

VOH @ 10mA LOAD

4.7

OUTPUT VOLTAGE (V)

4.6

4.5

–40 –25 –105 203550658095110125

TEMPERATURE (°C)

Figure 18. Output Voltage Swing vs. Temperature

250

VS = 5V

200

150

VOH @ 10mA LOAD

100

OUTPUT VOLTAGE (mV)

50

VOH @ 1mA LOAD

0

–40 –25 –10 5 20 35 50 65 80 95 110 125

TEMPERATURE (°C)

Figure 19. Output Voltage Swing vs. Temperature

20

15

10

OUTPUT VOLTAGE (mV)

5

0

–40 –25 –10 5 20 35 50 65 80 95 110 125

01525-017

VOH @ 1mA LOAD

TEMPERATURE ( °C)

01525-020

Figure 20. Output Voltage Swing vs. Temperature

2.67 VS = 2.7V

2.66

2.65

VOH @ 1mA LOAD

2.64

OUTPUT VOLTAGE (V)

2.63

2.62

–40 –25 –10 5 20 35 50 65 80 95 110 125

01525-018

TEMPERATURE ( °C)

01525-021

Figure 21. Output Voltage Swing vs. Temperature

120

100

80

60

40 20

GAIN (dB)

0

–20 –40

–60

–80

1k 10k 100k 1M 10M 100M

01525-019

FREQUENCY (Hz)

PHASE

GAIN

VS = 3V R

= NO LOAD

L

T

= 25°C

A

–90 –45

0 45

90

135 180

225 270

315 360

PHASE SHIFT (Degrees)

01525-022

Figure 22. Open-Loop Gain and Phase vs. Frequency

Rev. G | Page 8 of 24

ANALOG DEVICES AD 8602 ARMZ Datasheet

Specifications and Main Features

Frequently Asked Questions

User Manual

FEATURES

APPLICATIONS

GENERAL DESCRIPTION

PIN CONFIGURATIONS

TABLE OF CONTENTS

REVISION HISTORY

SPECIFICATIONS

ELECTRICAL CHARACTERISTICS

ABSOLUTE MAXIMUM RATINGS

THERMAL RESISTANCE

ESD CAUTION

TYPICAL PERFORMANCE CHARACTERISTICS