Texas Instruments INA138-Q1
The INA138-Q1 and INA168-Q1 (INA1x8-Q1) devices are high-side, unidirectional, current sense amplifiers. The device converts a differential input voltage to a current output. Input common-mode and power-supply voltages are independent, and range from 2.7 V to 36 V for the INA138-Q1, and 2.7 V to 60 V for the INA168-Q1.FEATURES
●1 Qualified for AutomotiveAPPLICATIONS
● 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● Complete Unipolar High-Side CurrentMeasurement Circuit
● Wide Supply and Common-Mode Ranges: – INA138-Q1: 2.7 V to 36 V – INA168-Q1: 2.7 V to 60 V
● Independent Supply and Input Common-Mode Voltages
● Single Resistor Gain Set
● Low Quiescent Current (25 µA Typical)
● Wide Temperature Range: –40°C to +125°C
● Packages: TSSOP-8, SOT-23-5 (INA168-Q1) 2
APPLICATIONS
● Electric Power Steering (EPS) Systems● Body Control Modules
● Brake Systems
● Electronic Stability Control (ESC) Systems 3
DESCRIPTION
Wide input common-mode voltage range, low quiescent current, and TSSOP and SOT-23 packaging enable use in a variety of applications. Quiescent current is only 25 μA, which permits connecting the power supply to either side of the current-measurement shunt with minimal error.