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INA139-Q1

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AEC-Q100, 2.7 to 36V, 440kHz Variable gain current sense amplifier

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Data sheet

INA139-Q1

ACTIVE
Data sheet Order now

Product details

Product type Analog output Common-mode voltage (max) (V) 36 Common-mode voltage (min) (V) 2.7 Input offset (±) (max) (µV) 1000 Input offset drift (±) (typ) (µV/°C) 1 Voltage gain (V/V) adjustable CMRR (min) (dB) 100 Bandwidth (kHz) 220 Supply voltage (max) (V) 40 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.125 Number of channels 1 Comparators (#) 0 Gain error (%) 2 Gain error drift (±) (max) (ppm/°C) 100 Features Current Output Rating Automotive Operating temperature range (°C) -40 to 125
Product type Analog output Common-mode voltage (max) (V) 36 Common-mode voltage (min) (V) 2.7 Input offset (±) (max) (µV) 1000 Input offset drift (±) (typ) (µV/°C) 1 Voltage gain (V/V) adjustable CMRR (min) (dB) 100 Bandwidth (kHz) 220 Supply voltage (max) (V) 40 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.125 Number of channels 1 Comparators (#) 0 Gain error (%) 2 Gain error drift (±) (max) (ppm/°C) 100 Features Current Output Rating Automotive Operating temperature range (°C) -40 to 125
TSSOP (PW) 8 19.2 mm² 3 x 6.4
  • 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 Unidirectional High-Side Current Measurement Circuit
  • Wide Supply and Common-Mode Ranges
    • INA139-Q1: 2.7 V to 40 V
    • INA169-Q1: 2.7 V to 60 V
  • Independent Supply and Input Common-Mode
    Voltages
  • Single Resistor Gain Set
  • Low Quiescent Current (60 µA Typical)
  • Wide Temperature Range: –40°C to +125°C
  • Package: TSSOP-8
  • 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 Unidirectional High-Side Current Measurement Circuit
  • Wide Supply and Common-Mode Ranges
    • INA139-Q1: 2.7 V to 40 V
    • INA169-Q1: 2.7 V to 60 V
  • Independent Supply and Input Common-Mode
    Voltages
  • Single Resistor Gain Set
  • Low Quiescent Current (60 µA Typical)
  • Wide Temperature Range: –40°C to +125°C
  • Package: TSSOP-8

The INA139-Q1 and INA169-Q1 (INA1x9-Q1) are high-side, unidirectional, current shunt monitors. Wide input common-mode voltage range, high-speed, low quiescent current, and TSSOP-8 packaging enable use in a variety of applications.

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 the INA139-Q1 and INA169-Q1 are available in a TSSOP-8 package, and are specified for the –40°C to +125°C temperature range.

The INA139-Q1 and INA169-Q1 (INA1x9-Q1) are high-side, unidirectional, current shunt monitors. Wide input common-mode voltage range, high-speed, low quiescent current, and TSSOP-8 packaging enable use in a variety of applications.

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 the INA139-Q1 and INA169-Q1 are available in a TSSOP-8 package, and are specified for the –40°C to +125°C temperature range.
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Type Title Date
* Data sheet INA1x9-Q1 Automotive-Grade, High-Side, Current-Output, Current-Shunt Monitor datasheet (Rev. F) PDF | HTML 01 Feb 2016
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 30 Apr 2024
Application note Extending the Common-Mode Voltage Range of Current-Output Current Shunt Monitors (Rev. A) PDF | HTML 21 Mar 2022
Application note Using a PCB Copper Trace as a Current-Sense Shunt Resistor PDF | HTML 25 Jan 2022
Application note Evaluating Current Sensing Amplifiers in Body Control Modules Using Simulation 16 Dec 2019
Circuit design High-voltage, high-side floating current sensing circuit using current output, c 28 Jun 2018

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