1 Features

1• Qualified for Automotive Applications

• AEC-Q100 Qualified With the Following Results:

– Device Temperature Grade 1: –40°C to

+125°C Ambient Operating Temperature

Range

– Device HBM ESD Classification Level 2

– Device CDM ESD Classification Level C6

• Pinout Optimized for External Filtering

• Wide Common-Mode Range: –16 V to +80 V

• Accuracy:

– CMRR: 120 dB

– ±2.5-mV Offset (Maximum)

– ±1% Gain Error (Maximum)

– 20-μV/°C Offset Drift (Maximum)

– 55-ppm/°C Gain Drift (Maximum)

• Bandwidth: Up to 130 kHz

• Two Gain Options Available:

– 14 V/V (INA270A-Q1)

– 20 V/V (INA271A-Q1)

• Quiescent Current: 900 μA (Maximum)

• Power Supply: 2.7 V to 18 V

• Packages: SOIC-8

2 Applications

• Electric Power Steering (EPS) Systems

• Body Control Modules

• Brake Systems

• Electronic Stability Control (ESC) Systems

3 Description

The INA270A-Q1 and INA271A-Q1 (INA27xA-Q1)

family of current-shunt monitors with voltage output

can sense voltage drops across current shunts at

common-mode voltages from –16 V to +80 V,

independent of the supply voltage. The INA27xA-Q1

pinouts readily enable filtering.

The INA27xA-Q1 devices are available with two

output voltage scales: 14 V/V and 20 V/V. The 130-

kHz bandwidth simplifies use in current-control loops.

The INA27xA-Q1 operates from a single 2.7-V to 18-

V supply, drawing a maximum of 900 μA of supply

current. They are specified over the extended

operating temperature range of –40°C to +125°C and

are offered in an SOIC-8 package.