High temp, -16 to 80V, split-stage current sense amplifier w/ in-line filter capability


Product details


Common mode voltage (Max) (V) 80 Common mode voltage (Min) (V) -16 Input offset (+/-) (Max) (uV) 2500 Input offset drift (+/-) (Typ) (uV/C) 42 Gain (V/V) 20 Gain error (%) 1 Gain error drift (+/-) (Max) (ppm/°C) 300 CMRR (Min) (dB) 100 Bandwidth (kHz) 130 Supply voltage (Max) (V) 18 Supply voltage (Min) (V) 2.7 Iq (Max) (mA) 0.95 Number of channels (#) 1 Comparators (#) 0 Features Low-side Capable Rating Catalog Operating temperature range (C) -55 to 210 open-in-new Find other Current sense amplifiers analog output

Package | Pins | Size

CFP (HKJ) 8 39 mm² 6.9 x 5.65 CFP (HKQ) 8 39 mm² 6.9 x 5.65 open-in-new Find other Current sense amplifiers analog output


  • Wide Common-Mode Range: –16V to +80V
  • CMRR: 78dB
  • Accuracy:
    ±10mV Offset (max)
    ±7.5% Gain Error (max)
    100µV/°C Offset Drift (max)
  • Bandwidth: Up to 130kHz
  • Transfer Function: 20V/V
  • Quiescent Current: 1600µA (max)
  • Power Supply: +2.7V to +18V
  • Provision for Filtering
    • Down-Hole Drilling
    • High Temperature Environments
  • Supports Extreme Temperature Applications
    • Controlled Baseline
    • One Assembly/Test Site
    • One Fabrication Site
    • Available in Extreme (–55°C/210°C)
      Temperature Range(1)
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability
    • Texas Instruments high temperature products utilize
      highly optimized silicon (die) solutions with design
      and process enhancements to maximize performance over
      extended temperatures.

(1) Custom temperature ranges

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The INA271 is a current-shunt monitor with voltage output and can sense drops across current shunts at common-mode voltages from –16V to +80V, independent of the supply voltage. The INA271 pinouts readily enable filtering.

The INA271 is available with a 20V/V output voltage scale. The 130kHz bandwidth simplifies use in current-control loops.

The INA271 operates from a single +2.7V to +18V supply, drawing a maximum of 1600µA of supply current. This device is specified over the extended operating temperature range of –55°C to +210°C.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 7
Type Title Date
* Datasheet Voltage Output, Unidirectional Measurement Current-Shunt Monitor datasheet (Rev. D) Aug. 27, 2013
* Radiation & reliability report INA271SHKJ Reliability Report May 07, 2012
* Radiation & reliability report INA271SHKQ Reliability Report May 07, 2012
Technical articles How current-sense amplifiers monitor satellite health Feb. 08, 2021
Technical articles A key to accurate system thermal management: monitoring both current flow and temperature Oct. 04, 2018
Technical articles System trade-offs for high- and low-side current measurements Jun. 01, 2017
Technical articles Why should you care about overcurrent protection in your system? Jun. 16, 2016

Design & development

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Design tools & simulation

PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide
SBOR020A.ZIP (525 KB)

Reference designs

Current Shunt Monitor with Transient Robustness Reference Design
TIDA-00302 This high-side current shunt monitor is used to measure the voltage developed across a current-sensing resistor when current passes through it.

Additionally, an external protection circuit is implemented to provide surge and fast-transient protection and demonstrate the different immunity levels to (...)

document-generic Schematic document-generic User guide
Design files

CAD/CAE symbols

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CFP (HKJ) 8 View options
CFP (HKQ) 8 View options

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