LT181 Series Low- and High-Side Voltage Output, Bidirectional Current Sense Amplifiers, Drawing A Maximum of 110μA of Supply Current
The LT181 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 –0.2V to +26V, independent of the supply voltage. The LT181 series integrate a matched resistor gain network in four fixed-gain device options: 20V/V, 50V/V, 100V/V, or 200V/V. This matched gain resistor network minimizes gain error and reduces the temperature drift. The LT181 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 SOT23-6L packages.
Features and Benefits
● Wide common-mode range: –0.2V to 26V
● Offset voltage：
±150μV Maximum at VCM=0V
±500μV Maximum at VCM=12 V
● Accurac：
Maximum ±1% Gain Error
Maximum 1μV/℃ Offset Drift
● Gains Options:
20V/V (LT181A1)
50V/V (LT181A2)
100V/V (LT181A3)
200V/V (LT181A4)
● Output slew rate: 0.7V/μs
● Quiescent Current：Maximum 110μA
● Package：SOT23-6L
Applications
Motor Control
Battery Monitor, BMS
Power Management
Lighting Control
Over-Current Detection
Solar Inverters
Limiting Value
ESD Rating
Ordering Information
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