AD621ARZ-R7

AD621 is a low drift, low power, instrumentation amplifier. It 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 device is fully specified as a total system, therefore, simplifying the design process. The device also excels in applications requiring high total accuracy, such as precision data acquisition systems used in weigh scales and transducer interface circuits. It is widely used in application such as weigh scales, transducer interface and data acquisition systems, industrial process controls, battery-powered and portable equipment etc.

• Quiescent current is 1.3mA
• Wide power supply range is 2.3V to 18V
• Total gain error is 0.15% max
• Total gain drift is 5ppm/C
• Total offset voltage is 250V max
• Offset voltage drift (average TC) is 0.3V/C typ
• Voltage noise (RTI) is 9nV/√Hz, at 1kHz, RTI (noise) is 0.28V p-p (0.1Hz to 10Hz)
• –3dB bandwidth is 800kHz(G = 10), 200kHz (G = 100)
• Settling time is 12s to 0.01%
• Operating temperature is –40°C to +85°C, packaging style is 8-lead plastic SOIC

Opombe

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party