Texas Instruments INA271AIDR

Description
The INA270 and INA271 are voltage-output, current-sense amplifiers that can sense drops across shunt resistors at common-mode voltages from -16 V to 80 V, independent of the supply voltage. The INA270 and INA271 pinouts readily enable filtering. The INA270 and INA271 are available with two gain options: 14 V/V and 20 V/V. The 130-kHz bandwidth simplifies use in current-control loops. The INA270 and INA271 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 temperature range of -40°C to 125°C and are offered in an SOIC-8 package.

Features
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

Applications
Power Management
Automotive
Telecom Equipment
Notebook Computers
Battery Chargers
Cell Phones
Welding Equipment