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Discontinued
Precision Data Converters

CS5550

2-Channel, Low-Cost A/D Converter for Electronic Weigh-Scale Applications
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CS5550 Overview

The CS5550 is an easy-to-design, value-priced, highly integrated solution with a small footprint. The CS5550 enables weigh-scale manufacturers to provide accurate, cost-effective solutions for their customers. This IC from Cirrus Logic is an integrated device that combines two Delta Sigma analog-to-digital (A/D) converters, two amplifiers and a serial interface on a single chip. For communication with a microcontroller, the IC features a bi-directional serial interface, which is initialized and fully functional upon reset. The device also offers excellent temperature stability for long-life operation. The CS5550 delivers precise measurements and is ideal for electronic weigh-scale applications.

CIRRUS®
CIRRUS ROCKS®
ENGINEERED TO ROCK®
INNOVATION THAT ROCKS®

Product Features

  • Output word rate: 2.44 kSPS to 4.88 kSPS

  • 24-bit A/D registers on both channels

    • Channel 1: 13 ENOBs

    • Channel 2: 10 ENOBs

  • Power consumption: <12 mW

  • Adjustable input range on channel 1

  • Ground-referenced signals with single supply

  • On-chip 2.5 V reference (25 ppm/°C typ.)

  • Simple 3-wire digital serial interface

  • Power supply configurations

    • VA+ = +5 V

    • AGND = 0 V

    • VD+ = +3.3 V to +5 V

  • Offset and gain calibrations on both channels

  • Package: 24-pin SSOP; lead-free assembly

This product has been discontinued

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