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AD621ARZ-RL

Low Drift, Low Power Instrumentation Amplifier

Analog Devices 

AD621

ABSOLUTE MAXIMUM RATINGS1

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 18 V

Internal Power Dissipation2 . . . . . . . . . . . . . . . . . . . . 650 mW

Input Voltage (Common Mode) . . . . . . . . . . . . . . . . . . . . ± VS

Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . ± 25 V

Output Short Circuit Duration . . . . . . . . . . . . . . . . Indefinite

Storage Temperature Range (Q) . . . . . . . . . –65°C to +150°C

Storage Temperature Range (N, R) . . . . . . . –65°C to +125°C

Operating Temperature Range

AD621 (A, B) . . . . . . . . . . . . . . . . . . . . . . – 40°C to +85°C

AD621 (S) . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to +125°C

Lead Temperature Range

(Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . 300°C

NOTES

1Stresses above those listed under Absolute Maximum Ratings may cause perma-

nent 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.

2Specification is for device in free air:

8-Lead Plastic Package: θJA = 95°C/W

8-Lead Cerdip Package: θJA = 110°C/W

8-Lead SOIC Package: θJA = 155°C/W

ESD SUSCEPTIBILITY

ESD (electrostatic discharge) sensitive device. Electrostatic

charges as high as 4000 volts, which readily accumulate on the

human body and on test equipment, can discharge without

detection. Although the AD621 features proprietary ESD pro-

tection circuitry, permanent damage may still occur on these

devices if they are subjected to high energy electrostatic dis-

charges. Therefore, proper ESD precautions are recommended

to avoid any performance degradation or loss of functionality.

ORDERING GUIDE

Model

Temperature Package

Range

Description

Package

Option1

AD621AN

–40°C to +85°C 8-Lead Plastic DIP N-8

AD621BN

–40°C to +85°C 8-Lead Plastic DIP N-8

AD621AR

–40°C to +85°C 8-Lead Plastic SOIC R-8

AD621BR

–40°C to +85°C 8-Lead Plastic SOIC R-8

AD621SQ/883B2 –55°C to +125°C 8-Lead Cerdip

Q-8

AD621ACHIPS –40°C to +85°C Die

NOTES

1N = Plastic DIP; Q = Cerdip; R = SOIC.

2See Analog Devices’ military data sheet for 883B specifications.

METALIZATION PHOTOGRAPH

Dimensions shown in inches and (mm).

Contact factory for latest dimensions.

1.125 (3.57)

RG 8

+VS

OUTPUT

7

6

5

REFERENCE

0.0708

(2.545)

RG 1

2

3

–IN

+IN

4 –VS

–4–

REV. B

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