The AD8210 is a single-supply, difference amplifier with high voltage and bidirectional current measurement capabilities. Its features include a high common-mode voltage range, buffered output voltage, wide operating temperature range, etc.
The AD8210 is a single‑supply difference amplifier designed for precise current sensing in high‑voltage environments. It operates from a 5 V supply and supports a common‑mode voltage range of –2 V to +65 V, making it suitable for motor control, engine management, and DC‑DC converters.
The device offers a 20 V/V gain, low offset drift (8 µV/°C), and a selectable output offset from 0.05 V to 4.9 V via the Vrerl and Vrer2 pins. Its specifications include a 450 kHz –3 dB bandwidth, 3 V/µs slew rate, and robust ESD protection (+4000 V HBM).
| Gain (Initial) | 20 V/V |
|---|---|
| Offset Voltage (RTI) | +1.0 mV |
| Input Impedance (Differential) | 2 kΩ |
| Common‑Mode Input Voltage Range | –2 V to +65 V |
| Operating Temperature Range | –40 °C to +125 °C |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Quiescent Current (Typical) | 2 mA |
| Small‑Signal –3 dB Bandwidth | 450 kHz |
| Slew Rate | 3 V/µs |
| Power Supply Rejection Ratio | 80 dB |
The AD8210 operates from –40 °C to +125 °C.
It requires a supply voltage between 4.5 V and 5.5 V.
The output offset is adjusted by connecting the Vrerl and Vrer2 pins to V+, GND, or an external voltage to set the desired offset.
The device can handle a common‑mode input voltage from –2 V up to +65 V.