Single-Supply, 16-Bit A/D Converter

The CS5509 is a single-supply, 16-bit, serial-output analog-to-digital (A/D) converter for industrial applications. The CS5509 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 CS5509 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 CS5509 an ideal solution for loop-powered transmitters, panel meters, weigh scales and battery-powered instruments.

Features

  • Delta Sigma A/D converter
    • 16-bit no missing codes
    • Linearity error: ±0.0015% FS
  • Differential input
    • Pin-selectable unipolar/bipolar ranges
    • Common mode rejection
      • 105 dB @ DC
      • 120 dB @ 50 Hz, 60 Hz
  • On-chip, self-calibration circuitry
  • Output update rates up to 200/second
  • Either a 3.3 V or 5 V digital interface
  • Ultra-low power: 1.7 mW
  • Package: 16-pin SOIC; lead-free assembly

Parametric Specifications

Resolution (bits) 16
Throughput (Sps) 20-200
Integral Linearity (%FS) 0.0015
Differential Linearity (±LSB) 0.25
Channels 1
Power Consumption (mW) 1.7
Package 16 SOIC

Technical Documents

CS5509 Product Data Sheet

Oct 8, 2009, DS125F3 : 155 Kb

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