Cirrus Logic Home
Home : Cirrus Products : DC Measurement : CS5504

Low Power, 20-Bit A/D Converter

The CS5504 is a 2-channel, fully differential 20-bit, serial-output CMOS A/D converter. The CS5504 uses charge-balanced (Delta-Sigma) techniques to provide a low-cost, high-resolution measurement at output word rates up to 200 samples per second.

The on-chip digital filter offers superior line rejection at 50 Hz and 60 Hz when the device is operated from a 32.768 kHz clock (output word rate = 20 Hz.).

The CS5504 has on-chip, self-calibration circuitry which can be initiated at any time or temperature to ensure minimum offset and full-scale errors.

Low power, high-resolution, and small package size make the CS5504 an ideal solution for loop-powered transmitters, panel meters, weigh scales, and battery-powered instruments.

Product Features
  • Delta-Sigma A/D converter
    • 20-bit no missing codes
    • Linearity error: ±0.0007 FS
  • 2 differential inputs
    • Pin-selectable unipolar/bipolar ranges
    • Common mode rejection
  • 105 dB @ dc
  • 120 dB @ 50, 60 Hz
  • Either 5 or 3.3V digital interface
  • On-chip self-calibration circuitry
  • Output update rates up to 200/second
  • Low power consumption: 4.4 mW
  • Package: 20-pin SOIC, 20-pin PDIP

Documents
CS5504 Product
Data Sheet

MAR '95, DS126F1 : 408 Kb
AN035 The CS5504 Family Characteristics
JAN '95, AN35REV2 : 26 Kb
AN045 CS5504 Capture
Interface

FEB '98, AN45REV1 : 89 Kb

Documentation on this CD requires Adobe Acrobat Reader. Download the latest viewer.
Copyright © 2002 Cirrus Logic Inc.