NSI1300-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 ±50mV (±64mV full-scale) or ±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 (8.2 or 41) 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 5700Vrms Insulation voltage
• ±50mV or ±250mV linear Input Voltage Range
• Fixed Gain: 8.2 or 41
• Low Offset Error and Drift:
NSI1300D25: ±0.2mV (Max), -2~4μV/℃ (Max)
NSI1300D05: ±0.1mV (Max), -0.8~1μV/℃ (Max)
• Low Gain Error and Drift: ±0.3% (Max), ±50ppm/℃ (Max)
• Low Nonlinearity and Drift: ±0.03% (Max), ±1ppm/℃ (Typ)
• SNR: 86dB (Typ, BW=10kHz), 72dB (Typ, BW=100kHz)
• Wide bandwidth: 310kHz (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 per UL1577
• CQC certification per GB4943.1
• CSA component notice 5A
• DIN EN IEC 60747-17 (VDE 0884-17)
Application
• Shunt Current Monitoring
• AC Motor Controls
• Uninterruptible Power Suppliers
• Automotive Onboard Chargers
Functional Block Diagram
For more product information, please contact us.
