AD620 is a low cost low power instrumentation amplifier with a gain range of 1 to 10,000, a wide power supply range, excellent dc performance, low noise and excellent ac specifications. It is suitable for weighing scales, ECG and medical instrumentation, transducer interface, data acquisition systems, industrial process control and battery-powered and portable equipment.
The AD620 instrumentation amplifier from Analog Devices provides a simple gain setting with a single external resistor and offers a wide supply range of +2.3 V to +18 V. It is available in 8‑lead PDIP, CERDIP, and SOIC packages, making it suitable for battery‑powered and portable applications.
Typical applications include weigh scales, ECG and other medical instrumentation, transducer interfaces, data‑acquisition systems, and industrial process controls. The device delivers low noise, low offset voltage, and low input bias current, enabling high‑precision measurements.
| Gain range | 1 to 10,000 |
|---|---|
| Supply voltage range | +2.3 V to +18 V |
| Quiescent supply current | 1.3 mA max |
| Input offset voltage | 50 µV max |
| CMRR (G=10) | 100 dB min |
The AD620 can be set to a gain from 1 to 10 000 with a single external resistor.
At a gain of 100 the AD620 provides a bandwidth of about 120 kHz.
The device is rated for a maximum supply voltage of +18 V.
The AD620 is available in 8‑lead PDIP, CERDIP, and SOIC packages.