Quad, Low Power, Precision

Rail-to-Rail Output Op Amp

Preliminary Technical Data

AD8624

Rev. PrA

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FEATURES

Very low offset voltage: 125 μV maximum

Supply current: 250 μA maximum

Input bias current: 200 pA maximum

Low input offset voltage drift: 0.5 μV/°C

Very low voltage noise: 11 nV/√Hz

Operating temperature: −40°C to +125°C

Rail-to-rail output swing

±2.5 V to ±18 V operation

APPLICATIONS

Portable precision instrumentation

Laser diode control loops

Strain gage amplifiers

Medical instrumentation

Thermocouple amplifiers

PIN CONFIGURATIONS

OUT A

1

–IN A

2

+IN A

3

V+

4

OUT D

–IN D

+IN D

V–

14

13

12

11

+IN B

5

–IN B

6

OUT B

7

+IN C

–IN C

OUT C

10

9

8

AD8508

TOP VIEW

(Not to Scale)

Figure 1. 14-Lead TSSOP (RU-14)

NC = NO CONNECT

TOP VIEW

(Not to Scale)

ADA4004-4

–IN D

12

+IN D

11

VEE

10

+IN C

9

5

6

7

8

16

15

14

13

Figure 2. 16-Lead LFCSP

(CP-16-4 Suffix)

GENERAL DESCRIPTION

The AD8624 is a quad, precision rail-to-rail output operational

amplifier with a low supply current of only 350 μA maximum

over temperature and supply voltages. It offers low offset, drift,

and voltage noise combined with very low input bias currents

over the full operating temperature range.

With typical offset voltage of only 10 μV, offset drift of 0.5 μV/°C,

and noise of only 11nV/√Hz, it is perfectly suited for

applications where large error sources cannot be tolerated.

Many systems can take advantage of the low noise, dc precision,

and rail-to-rail output swing provided by the ADA8624 to

maximize the signal-to-noise ratio and dynamic range for low

power operation.

The AD8624 is specified over the extended industrial

temperature range of −40°C to +125°C. The AD8624 is available

in an 14-lead TSSOP and 16-lead LFCSP (4x4x0.85mm)

surface-mount package. The AD8624 is part of a growing

family of 36 V, low power op amps from Analog Devices.

Table 1. Low Power Op Amps

Supply

40 V

36 V

12 V to 16 V

5 V

Single

OP97

OP777

OP196

AD8603

OP1177

AD8663

Dual

OP297

OP727

OP296

AD8607

OP2177

AD8667

AD706

AD8622

Quad

OP497

OP747

OP496

AD8609

OP4177

AD8669

AD704