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

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.

• 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