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INA271-HT
  • INA271-HT
  • INA271-HT

INA271-HT

ACTIVE

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

Texas Instruments INA271-HT Product Info

1 April 2026 4

Parameters

Product type

Analog output

Common-mode voltage (max) (V)

80

Common-mode voltage (min) (V)

-16

Input offset (±) (max) (µV)

10000

Input offset drift (±) (typ) (µV/°C)

42

Features

Low-side Capable

Rating

High Temp

Voltage gain (V/V)

20

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

Gain error (%)

2

Gain error drift (±) (max) (ppm/°C)

300

Slew rate (V/µs)

1

Operating temperature range (°C)

-55 to 210

Package

CFP (HKJ)-8-38.985 mm² 6.9 x 5.65

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

  • 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

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.

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