ad629 high common mode voltage difference amplifier, with very high voltage range and current range, used in high voltage current sensing, battery voltage monitor, power supply current monitor, motor control and other fields
The AD629 is a precision unity gain differential-to-single-ended amplifier capable of rejecting extremely high common-mode signals exceeding 270 V. It features an internal resistor network and operational amplifier to provide accurate measurements while protecting inputs from transients up to ±500 V.
The device operates over a wide supply voltage range of ±2.5 V to ±18 V and is available in 8-lead Plastic DIP (N) and SOIC (R) packages. It offers excellent DC performance with low offset drift and high accuracy, making it suitable for applications such as battery cell monitoring and motor control isolation.
| Min CMRR @ 500 Hz (AD629B) | 86 dB |
|---|---|
| Bandwidth | 500 kHz |
| Operating Temperature Range | -40°C to +85°C |
Yes, it can replace costly isolation amplifiers in applications that do not require galvanic isolation.
It is available in 8-Lead Plastic Mini-DIP (N) and SOIC (R) packages.