Datasheet
AD621
REV. B
–4–
NOTES
1
Stresses 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.
2
Specification is for device in free air:
8-Lead Plastic Package: θ
JA
= 95°C/W
8-Lead Cerdip Package: θ
JA
= 110°C/W
8-Lead SOIC Package: θ
JA
= 155°C/W
ABSOLUTE MAXIMUM RATINGS
1
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 18 V
Internal Power Dissipation
2
. . . . . . . . . . . . . . . . . . . . 650 mW
Input Voltage (Common Mode) . . . . . . . . . . . . . . . . . . . . ±V
S
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
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
Temperature Package Package
Model Range Description Option
1
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/883B
2
–55°C to +125°C 8-Lead Cerdip Q-8
AD621ACHIPS –40°C to +85°C Die
NOTES
1
N = Plastic DIP; Q = Cerdip; R = SOIC.
2
See 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)
0.0708
(2.545)
5
REFERENCE
RG 1
RG 8
+V
S
7
4 –V
S
2
–IN
3
+IN
OUTPUT
6