The INA270 andINA271AQDRQ1 family of voltage-output, current-sense amplifiers can sense drops across shunt resistors atcommon-mode voltages from –16 V to +80 V, independent of the supply voltage. The INA270 and INA271pinouts readily enable filtering.
The INA270 and INA271AQDRQ1 are available with two gain options: 14 V/V and 20 V/V. The 130-kHzbandwidth simplifies use in current-control loops.
The INA270 and INA271AQDRQ1 operate from a single +2.7-V to +18-V supply, drawing 700 μA(typical) of supply current. The devices are specified over the extended operating temperaturerange of –40°C to +125°C and are offered in an SOIC-8 package.
Feature
- Wide Common-Mode Range: –16 V to +80 V
- CMRR: 120 dB
- Accuracy:
±0.5-mV Offset (typ)
±0.2% Gain Error (typ)
2.5 μV/°C Offset Drift (typ)
50 ppm/°C Gain Drift (max) - Bandwidth: Up to 130 kHz
- Two Gain Options Available:
14 V/V (INA270)
20 V/V (INA271) - Quiescent Current: 700 μA (typ)
- Power Supply: +2.7 V to +18 V
- Provision for Filtering
