描述
The LTA180 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 LTA180 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 LTA180 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 (LTA180A1, LTA180B1)
– 50V/V (LTA180A2, LTA180B2)
– 100V/V (LTA180A3, LTA180B3)
– 200V/V (LTA180A4, LTA180B4) - Output slew rate: 1.3 V/μs
- Quiescent Current: Maximum 230μA
- Package: SOT23-5L
应用
- Motor Control
- Battery Monitor, BMS
- Power Management
- Lighting Control
- Over-Current Detection
- Solar Inverters
