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NSI1312-Q1 is a cost-effective isolated amplifier with output separated from input based on the NOVOSENSE capacitive isolation technology Adaptive OOK®. The device has a linear differential input signal range of ±1.2V (±1.5V full-scale). The high input impedance of NSI1312 makes it highly suitable for connection to high-voltage resistive dividers or other voltage signal sources with high output resistance. The device has a fixed gain of 1 and provides differential analog output version (NSI1312D-Q1) and single-ended analog output version (NSI1312S-Q1) option. The low offset and gain drift ensure the accuracy over the entire temperature range. The high common-mode transient immunity ensures that the device is able to provide accurate and reliable measurements even in the presence of high-power switching such as in motor control applications. The fail-safe function (missing VDD1 detection) simplifies system-level design and diagnostics.
• Up to 5000VRMS Insulation Voltage
• ±1.2V Linear Input Voltage Range
• Fixed Gain: 1
• Excellent DC Performance:
• Offset Error: ±2.5mV (Max)
• Offset Drift: ±20μV/°C (Max)
• Gain Error: ±0.3% (Max)
• Gain Error Drift: ±40ppm/°C (Max)
• Nonlinearity: ±0.05% (Max)
• Nonlinearity Drift: ±1ppm/°C (Typ)
• SNR: 78dB (Typ)
• High CMTI: 150kV/μs (Typ)
• System-Level Diagnostic Features:
• VDD1 monitoring
• Operation Temperature: -40°C~125°C
• AEC-Q100 qualified for automotive applications
• RoHS-Compliant Packages: SOW8 wide body (SOP8 300mil)
• UL recognition: 5000Vrms for 1 minute per UL1577
• CQC certification per GB4943.1
• CSA component notice 5A
• DIN EN IEC 60747-17 (VDE 0884-17)
• Traction Inverters
• Onboard Chargers
• DC/DC Converters
• PTC
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