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.