The AD623 is a single supply, rail-to-rail, low cost instrumentation amplifier from Analog Devices. It features a 100dB common-mode rejection ratio, 0.1% gain accuracy and 25nA maximum input bias current.
The AD623 is an integrated single supply instrumentation amplifier designed to deliver rail-to-rail output swing on a single supply ranging from +3 V to +12 V. It offers superior user flexibility by allowing single gain set resistor programming, with a gain range from 1 (no resistor) to 1,000. The device holds errors to a minimum by providing superior AC CMRR that increases with increasing gain, making it ideal for rejecting line noise and harmonics up to 200 Hz.
| Gain Range | 1 to 1000 |
|---|---|
| Input Offset Voltage (Max) | 200 mV |
| Input Bias Current (Max) | 25 nA |
| Supply Voltage Range (Single) | +3 V to +12 V |
| Bandwidth (G=1) | 800 kHz |
| Settling Time to 0.01% (G=10) | 20 ms |
| Operating Temperature Range | -40 °C to +85 °C |
The gain can be programmed from 1 to 1,000 using an external resistor, or set to unity gain with no external resistor.
Yes, it is designed for single supply operation from +3 V to +12 V.
The maximum input offset voltage is 200 mV for the AD623A and AD623ARM models.