INA271-HT - High Temp, 80V, Low-/High-side, High-Speed, Voltage Output Current Sense Amplifier

Updated : 2020-01-09 14:22:52
Description

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.

Features

  • 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
  • APPLICATIONS
    • 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

Parametrics
StatusACTIVE
SubFamilyCurrent sense amplifiers analog output
Common mode voltage80
RatingHigh Temp
FeaturesLow-side Capable
Supply Voltage2.7
Input offset (+/-)10000
Input offset drift (+/-)42
Gain20
Gain error2
CMRR100
Bandwidth130
Iq0.95
Approx. price
Operating temperature range-55 to 210
Package GroupCFP|8
Package size: mm2:W x L (PKG)See datasheet (CFP)