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 1C

– Device CDM ESD Classification Level C6

– Device MM ESD Classification Level M2

• High Common-Mode Voltage

– 75 V at VS = 5 V

– ±200 V at VS = ±15 V

• Fixed Differential Gain = 1 V/V

• Low Quiescent Current: 260 μA

• Wide Supply Range

– Single Supply: 2.7 V to 36 V

– Dual Supplies: ±1.35 V to ±18 V

• Low Gain Error: 0.075% (Maximum)

• Low Nonlinearity: 0.002% (Maximum)

• High CMR: 86 dB

• Surface-Mount 8-pin SOIC Package

2 Applications

• HEV/EV and Powertrain

• HEV Battery Management

• Automotive Instrumentation

• Current-Shunt Measurements

• Differential Sensor Amplifiers

• Line Receivers

• Battery-Powered Systems

• Stacked-Cell Monitors

3 Description

The INA148-Q1 is a precision, low-power, unity-gain

difference amplifier with a high common-mode input

voltage range. The device consists of a monolithic,

precision, bipolar operational amplifier with a thin-film

resistor network.

The on-chip resistors are laser trimmed for an

accurate 1-V/V differential gain and high commonmode

rejection. Excellent temperature tracking of the

resistor network maintains high gain accuracy and

common-mode rejection over temperature. The

INA148-Q1 operates on single or dual supplies.

These features make the INA148-Q1 suitable for

HEV/EV and Powertrain applications, specifically in

battery management systems.

The INA148-Q1 is available in an 8-pin SOIC,

surface-mount package, and is specified for operation

over the temperature range of –40°C to 125°C.