描述

The LT180 series of current sense amplifiers (also called current shunt monitors) are designed for cost-optimized applications, 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 LT180 series integrate a matched resistor gain network in four fixed-gain device options: 20 V/V, 50 V/V, 100 V/V, or 200 V/V. This matched gain resistor network minimizes gain error and reduces the temperature drift. 

The LT180 series operate from a single +2.7-V to +5.5-V power supply, drawing a maximum of 110μA of supply current. The device is specified from -40℃ to +125℃, and offered in SOT23-5L packages
 

优势和特点

  • Wide common-mode range: –0.2 V to 26 V
  • Offset voltage
– ± 150 μV Maximum at VCM = 0 V
– ± 500 μV Maximum at VCM = 12 V
  • Accuracy
– Maximum ± 1% Gain Error
– Maximum 1 μV/℃ Offset Drift
  • Gains Options:
– 20V/V (LT180A1, LT180B1)
– 50V/V (LT180A2, LT180B2)
– 100V/V (LT180A3, LT180B3)
– 200V/V (LT180A4, LT180B4)
  • Output slew rate: 0.7 V/μs
  • Quiescent Current: Maximum 110μA
  • Package: SOT23-5L


 

应用

  • Motor Control
  • Battery Monitor, BMS
  • Power Management
  • Lighting Control
  • Over-Current Detection
  • Solar Inverters


 

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