INA180 - Texas Instruments

INA180 current-sense amplifiers

The INA180, INA2180, and INA4180 (INAx180) current sense amplifiers are designed for costoptimized applications. These devices are part of a family of current-sense amplifiers (also called currentshunt monitors) that sense voltage drops across current-sense resistors at common-mode voltages from –0.2 V to +26 V, independent of the supply voltage. The INAx18.

Features

• Common-mode range (VCM):
  –0.2 V to +26 V
• High bandwidth: 350 kHz (A1 devices)
• Offset voltage:
  – ±150 µV (maximum) at VCM = 0 V
  – ±500 µV (maximum) at VCM = 12 V
• Output slew rate: 2 V/µs
• Accuracy:
  – ±1% gain error (maximum)
  – 1-µV/°C offset drift (maximum)
• Gain options:
  – 20 V/V (A1 devices)
  – 50 V/V (A2 devices)
  – 100 V/V (A3 devices)
  – 200 V/V (A4 devices)
• Quiescent current: 260 µA maximum (INA180) 2 Applications
• Motor control
• Battery monitoring
• Power management
• Lighting control
• Overcurrent detection
• Solar inverters Bus Voltage, VCM Up To 26 V RSENSE Load Power .