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MFG:ADI D/C:09
Part Number: AD621
MFG: ADI
D/C: 09
Description: The AD621 is an easy to use, low cost, low power, high accuracy instrumentation amplifier that is ideally suited for a ...
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AD621
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DataSheet
General Description
AD621 General Description
The AD621 is an easy to use, low cost, low power, high accuracy instrumentation amplifier that is ideally suited for a wide range of applications. Its unique combination of high performance, small size and low power, outperforms discrete in amp implementations. High functionality, low gain errors, and low gain drift errors are achieved by the use of internal gain setting resistors. Fixed gains of 10 and 100 can easily be set via external pin strapping. The AD621 is fully specified as a total system, therefore, simplifying the design process.
For portable or remote applications, where power dissipation, size, and weight are critical, the AD621 features a very low supply current of 1.3 mA max and is packaged in a compact 8-lead SOIC, 8-lead plastic DIP or 8-lead cerdip. The AD621 also excels in applications requiring high total accuracy, such
as precision data acquisition systems used in weigh scales and transducer interface circuits. Low maximum error specifications including nonlinearity of 10 ppm, gain drift of 5 ppm/°C, 50 µV offset voltage, and 0.6 µV/°C offset drift ("B" grade), make possible total system performance at a lower cost than has been previously achieved with discrete designs or with other monolithic instrumentation amplifiers.
AD621 Maximum Ratings
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
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
AD621 Features
EASY TO USE
Pin-Strappable Gains of 10 and 100
All Errors Specified for Total System Performance
Higher Performance than Discrete In Amp Designs
Available in 8-Lead DIP and SOIC
Low Power, 1.3 mA Max Supply Current
AD621 Typical Application
Weigh Scales
Transducer Interface and Data Acquisition Systems
Industrial Process Controls
Battery-Powered and Portable Equipment
Transducer Interface and Data Acquisition Systems
Industrial Process Controls
Battery-Powered and Portable Equipment
AD621 Connection Diagram
AD621
PDF/DataSheet Download
- Datasheet: AD621
- File Size: 543550 KB
- Manufacturer: AD [Analog Devices]
- Click here to Download
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