NSI1200C 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 8.0 and provides a differential analog output. The low offset and gain drift ensure the accuracy over the entire temperature range. 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 functions including input common-mode overvoltage detection and missing VDD1 detection simplify system-level design and diagnostics.
Product Features
? Up to 5000Vrms Insulation voltage
? ±250mV linear Input Voltage Range
? Fixed Gain: 8.0
? Low Offset Error and Drift: ±0.5mV (Max), ±5μV/°C (Max)
? Low Gain Error and Drift: ±0.3% (Max), ±30ppm/°C (Max)
? Low Nonlinearity and Drift: ±0.05% (Max), ±1ppm/°C (Typ)
? SNR: 72dB (Typ, BW=100kHz)
? Wide bandwidth: 220kHz (Typ)
? High CMTI: 125kV/μs (Typ)
? System-Level Diagnostic Features:
○ VDD1 monitoring
○ Input common-mode overvoltage detection
? Operation Temperature: -40°C ~125°C
? RoHS-Compliant Packages: SOP8(300mil), DUB8, SOP8(150mil)
Safety Certificate
? UL recognition:
○ SOW8, DUB8: 5000Vrms for 1 minute per UL1577
○ SOP8: 3000Vrms for 1 minute per UL1577
? CQC certification per GB4943.1
? CSA component notice 5A
? DIN EN IEC 60747-17 (VDE 0884-17)
Application
? Shunt Current Monitoring
? Motor Drives
? Uninterruptible Power Suppliers
? Solar Inverters
Functional Block Diagram
For more product information, please contact us.
