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High Reliability Reinforced Isolated Amplifier
NSI1200-Q1 is a high-performance isolated amplifier with output separated from input based on the NOVOSENSE capacitive isolation technology. The device has a linear differential input signal range of ±250mV (±320mV full-scale). The differential input is ideally suited to shunt resistor-based current sensing in high voltage applications where isolation is required. The device has a fixed gain of 8 and provides a differential analog output.
Product Features
• Up to 5000Vrms Insulation voltage
• ±250mV linear Input Voltage Range
• Fixed Gain: 8
• Low Offset Error and Drift: ±0.5mV (Max), -5~5μV/℃ (Max)
• Low Gain Error and Drift: ±0.35% (Max), ±50ppm/℃ (Max)
• Low Nonlinearity and Drift: ±0.05% (Max), ±1ppm/℃ (Typ)
• SNR: 86dB (Typ, BW=10kHz), 72dB (Typ, BW=100kHz)
• Bandwidth: 100kHz (Typ)
• High CMTI: 150kV/μs (Typ)
• System-Level Diagnostic Features:
VDD1 monitoring
Input common-mode overvoltage detection
• Operation Temperature: -40℃ ~125℃
• AEC-Q100 qualified for automotive applications
• RoHS-Compliant Packages: SOP8(300mil)
Safety Certificate
• UL recognition: up to 5000Vrms for 1 minute per UL1577
• CQC certification per GB4943.1-2011
• CSA component notice 5A approval IEC60950-1 standard
• DIN VDE V 0884-11:2017-01
Application
• Shunt current monitoring
• AC motor control
• Power and PV inverters
• UPS
• Onboard charger
Functional Block Diagram
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