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6-Channel, Delta-Sigma A/D Converter

The CS5451 is a highly integrated, Delta-Sigma analog-to-digital converter (ADC) developed for the power measurement industry. The CS5451 combines six Delta-Sigma A/D converters, decimation filters, and a serial interface on a single chip. The CS5451 interfaces directly to a current transformer or shunt to measure current and resistive divider or transformer to measure voltage. The product features a serial interface for communication with a micro-controller or DSP. The product is initialized and fully functional upon reset and includes a voltage reference.

Product Features
  • Synchronous sampling
  • Simple 4-wire serial interface
  • Charge pump driver output generates negative power supply
  • Ground-referenced bipolar inputs
  • Power supply configurations:
    • VA+ = 3V; VA- = -2V; VD+ = 3V
    • Supply tolerances ±10%
  • On-chip 1.2V reference (25 ppm/°C typ)
  • Power consumption
    • 20 mW typical at VD+ = 3V
  • Package: 28L-pin SSOP

Documents
CS5451 Product
Data Sheet

JUL '01, DS459PP4 : 366 Kb
CDB5451 Evaluat
ion Board Data Sheet

FEB '01, DS458DB2 : 1,247 Kb

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Copyright © 2002 Cirrus Logic Inc.