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The NSCSA240 is a high-precise, bidirectional current sense amplifer than can measure voltage drops across shunt resistors over a widecommon mode range from -4 V to 80 V,independent of the supply voltage. The high-precision current measurement is achieved through acombination of low ofset voltage (+5 yV typical), mall gain eror (0.05%, typical) and a high DC CMRR (135 dB, typical). The NSCSA240 isdesigned for high voltage, bidirectional measurements in switching systems that see large common-mode voltage transients at the device'sinputs. The enhanced PWl rejecion circuitry inside the NSCSA240 ensures minimal signal disturbance at the output due to the commonmode voltage transitions at the input.
• Operating Temperature Range: -40°C to +125°C
• Enhanced PWM Rejection
• Wide Common-Mode Range: -4 V to 80 V
• GBW: 450~600kHz
• Excellent CMRR:
135-dB DC CMRR (Typical)
90-dB AC CMRR at 50 kHz
• Accuracy:
Gain Error: 0.05%(Typical)
Offset Voltage: ±5μV (Typical)
• Gain Options:
NSCSA240A1:20 V/V
NSCSA240A2: 50 V/
NSCSA240A3:100 V
NNSCSA240A4:200 V
• AEC-Q100 qualified for automotive applications
• Power supply unit
• Motor controls
• Solar inverter
• Telecom Equipment
• Domain Controller
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