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NSCSA240: Current Sense Amplifier
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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.
Product Features
• 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
Application
• Power supply unit
• Motor controls
• Solar inverter
• Telecom Equipment
• Domain Controller
Functional Block Diagram
>For more product information, please contact us.
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