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Si8947 - Isolated Delta-Sigma Modulator

This page provides the datasheet information for the Si8947, a member of the Si8941 Isolated Delta-Sigma Modulator family.

Datasheet Summary

Description

The Si8941/46/47 are galvanically isolated delta-sigma modulators which output a digital signal proportional to the voltage level at the input.

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 - ±0.5 µV/°C typical offset drift - ±4 ppm/°C typical gain drift.
  • Typical 14-bit (ENOB) precision.
  • High common-mode transient immunity: 75 kV/µs.

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Datasheet preview – Si8947

Datasheet Details

Part number Si8947
Manufacturer Skyworks
File Size 1.42 MB
Description Isolated Delta-Sigma Modulator
Datasheet download datasheet Si8947 Datasheet
Additional preview pages of the Si8947 datasheet.

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Other Datasheets by Skyworks
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Full PDF Text Transcription

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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.
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