onsemi NCS21671 and NCV21671
Current sense amplifier, 40V comon-mode voltage, bidirectional, 40KHZ, Micro10
The NCS21671 and NCV21671 are a series of voltage output current sense amplifiers offered in gains of 25, 50, 100, and 200 V/V. These parts can measure voltage across shunts at common mode voltages from −0.1 V to 40 V, independent of supply voltage. These devices can operate from a single +1.8 V to +5.5 V power supply, drawing a maximum of 80 uA of supply current.
Key features
- Wide common mode input range from -0.1V to 40V
- Supply voltage range from 1.8V to 5.5V
- Low offset voltage is 25V maximum
- Rail-to-rail output capability
- Low current consumption is 80A maximum
- Enable pin to turn off input and power supply currents
- Micro10 package
- Operating temperature rating range from -40 to +125°C
- Common mode rejection ratio is 127dB (VIN+ = -0.1V to 40V, VSENSE = 0mV, TA = -40 to 125°C, G = 25)
- Input offset voltage drift vs temperature is ±0.5V/°C maximum (VSENSE = 0mV)
Applications
- Motor control
- Current sensing
- Signal conditioning
- Power supplies
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