CS5550

CS5550 Two-channel, Low-cost A/D Converter Features  Power Consumption <12 mW - with VD+ = 3.3 V  Adjustable Input Range on AIN1±  GND-referenced Signals with Single Supply  On-chip 2.5 V Reference (25 ppm/°C typ)  Simple Three-wire Digital Serial Interface  Power Supply Configurations VA+ = +5 V; AGND = 0 V; VD+ = +3.3 V to +5 V Description The CS5550 combines two  ADCs and a serial interface on a single chip. The CS5550 has on-chip functionality to facilitate offset and gain calibration. The CS5550 features a bi-directional serial interface for communication with a microcontroller. ORDERING INFORMATION: CS5550K-ISZ -40C to +85C, Lead Free CS5550K-ISZR -40C to +85C, Lead Free 24-pin SSOP 24-pin SSOP VA+ RESET VD+ AIN1+ AIN1- + 10x,50x - 4th Order  Modulator AIN2+ AIN2- + 10x - 2nd Order  Modulator Digital Filter Digital Filter Calibration Registers Config Register Output Registers Serial Interface CS SDI SDO SCLK INT VREFIN x1 VREFOUT Voltage Reference AGND Clock Generator XIN XOUT CPUCLK DGND http://www.cirrus.com Copyright  Cirrus Logic, Inc. 2005-2021 (All Rights Reserved) NOV 2021 DS630F2 1 CS5550 TABLE OF CONTENTS 1. PIN DESCRIPTION ................................................................................................................... 4 2. CHARACTERISTICS/SPECIFICATIONS ................................................................................. 5 ANALOG CHARACTERISTICS .........................................