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INA138-Q1

Part Number	INA138-Q1
Manufacturer	Texas Instruments
Description	High Side Measurement Current-Shunt Monitor
Published	Oct 18, 2021
Detailed Description	Product Folder Order Now Technical Documents Tools & Software Support & Community INA138-Q1, INA168-Q1 SGLS174J – S...
Datasheet	INA138-Q1 PDF File

Overview

Product Folder Order Now Technical Documents Tools & Software Support & Community INA138-Q1, INA168-Q1 SGLS174J – SEPTEMBER 2003 – REVISED AUGUST 2018 INA1x8-Q1 Automotive-Grade, High-Side, Current-Output, Current-Shunt Monitor 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 • 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 The INA138-Q1 and INA168-Q1 (INA1x8-Q1) devices are high-side, unidirectional, current sense amplifiers.
Wide input common-mode voltage range, low quiescent current, and TSSOP and SOT-23 packaging enable use in a variety of applications.
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.
Quiescent current is only 25 μA, which permits connecting the power supply to either side of the current-measurement shunt with minimal error.
The device converts a differential input voltage to a current output.
This current is converted back to a voltage with an external load resistor that sets any gain from 1 to over 100.
Although designed for current shunt measurement, the circuit invites creative applications in measurement and level shifting.
Both devices are available in a TSSOP-8 package.
The INA168-Q1 is also available in a SOT-23-5 package.
Both devices are specified for the –40°C to +125°C tempe...

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INA138-Q1 High Side Measurement Current-Shunt Monitor - Texas Instruments

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