30 V, 8 MHz, Low Bias Current,

Single-Supply, RRO, Precision Op Amps

Data Sheet

ADA4622-1/ADA4622-2

Rev. B

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FEATURES

Next generation of the AD820/AD822

Wide gain bandwidth product: 8 MHz typical

High slew rate: +23 V/μs/−18 V/μs typical

Low offset voltage

Low offset voltage drift

A grade: ±2 μV/°C typical, ±15 μV/°C maximum

B grade: ±2 μV/°C typical, ±5 μV/°C maximum

Input voltage range includes Pin V−

Rail-to-rail output

Electromagnetic interference rejection ratio (EMIRR)

90 dB typical at f = 1000 MHz and f = 2400 MHz

Industry-standard package and pinouts

APPLICATIONS

High output impedance sensor interfaces

Photodiode sensor interfaces

Transimpedance amplifiers

ADC drivers

Precision filters and signal conditioning

PIN CONFIGURATIONS

1

2

3

4

8

7

6

5

ADA4622-1

TOP VIEW

(Not to Scale)

–IN

+IN

V–

NIC

NOTES

1. NIC = NOT INTERNALLY CONNECTED.

V+

OUT

NIC

DISABLE

Figure 1. 8-Lead SOIC Pin Configuration, ADA4622-1 (See the Pin

Configurations and Function Descriptions Section for Additional Pin

Configurations)

1

2

3

4

–IN A

+IN A

V–

OUT A

8

7

6

5

OUT B

–IN B

+IN B

V+

ADA4622-2

(Not to Scale)

TOP VIEW

Figure 2. 8-Lead MSOP Pin Configuration, ADA4622-2 (See the Pin

Configurations and Function Descriptions Section for Additional Pin

Configurations)

GENERAL DESCRIPTION

The ADA4622-1/ADA4622-2 are the next generation of the

AD820 and the AD822 single-supply, rail-to-rail output (RRO),

precision junction field effect transistors (JFET) input op amps.

The ADA4622-1/ADA4622-2 include many improvements

that make them desirable as an upgrade without compromising

the flexibility and ease of use that makes the AD820 and the

AD822 useful for a wide variety of applications.

The input voltage range includes the negative supply and the

output swings rail-to-rail. Input EMI filters increase the signal

robustness in the face of closely located switching noise sources.

The speed, in terms of bandwidth and slew rate, increases along

with a strong output drive to improve settling time performance

and enable the devices to drive the inputs of modern single-ended,

successive approximation register (SAR) analog-to-digital

converters (ADCs).

Voltage noise is reduced; while keeping the supply current the

same as the AD820 and the AD822, broadband noise is reduced by

25%, and 1/f is reduced by half. DC precision in the ADA4622-1/

ADA4622-2 improved from the AD820 and the AD822 with

half the offset and a maximum thermal drift specification added

to the ADA4622-1/ADA4622-2. The common-mode rejection

ratio (CMRR) is improved from the AD820 and the AD822 to

make the ADA4622-1/ADA4622-2 more suitable when used in

noninverting gain and difference amplifier configurations.

The ADA4622-1/ADA4622-2 are specified for operation over the

extended industrial temperature range of −40°C to +125°C and

operates from 5 V to 30 V with specifications at +5 V, ±5 V, and

±15 V. The ADA4622-1 is available in a 5-lead SOT-23 package

and an 8-lead LFCSP package, and the ADA4622-2 is available in

an 8-lead SOIC package, an 8-lead MSOP package, and an 8-lead

LFCSP package.