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DATA SHEET
Si8941/Si8946/Si8947 Isolated Delta-Sigma Modulator for Current Shunt Measurement
Applications
• Industrial, HEV and renewable energy inverters • AC, brushless, and DC motor controls and drives • Variable speed motor control in consumer white goods • Isolated switch mode and UPS power supplies • Automotive on-board chargers, battery management
systems, and charging stations
Features
• Low voltage differential input - ±62.5 mV and ±250 mV options
• Modulator clock options - External clock up to 25 MHz (Si8941) - 10 MHz internal clock (Si8946) - 20 MHz internal clock (Si8947)
• Typical input offset: ±50 µV • Typical gain error: ±0.05% • Excellent drift specifications
- ±0.