SX8723

SX8723 ZoomingADC™ for Pressure and Temperature Sensing ADVANCED COMMUNICATIONS & SENSING Description The SX8723 is a data acquisition system based on Semtech’s low power ZoomingADC™ technology. It directly connects most types of miniature sensors with a general purpose microcontroller. With 2 differential inputs, it can adapt to multiple sensor systems. Its digital outputs are used to bias www.DataSheet4U.com or reset the sensing elements. Features Up to 16-bit differential data acquisition Programmable gain: (1/12 to 1000) Sensor offset compensation up to 15 times full scale of input signal 2 differential or 4 single-ended signal inputs Programmable Resolution versus Speed versus Supply current 2 digital outputs to bias Sensors Internal or external voltage reference Internal time base Low-power (250 uA for 16b @ 500 S/s) I2C interface Applications Industrial pressure sensing Industrial temperature sensing Barometer Compass Ordering Information Device Package SX8723E083TRT MLPD-W-12 4x4 1) Available in tape and reel only 2) Lead free, WEEE and RoHS compliant. Functional Block Diagram SX8723 - VBATT VREF + - + - AC0 AC1 AC2 AC3 AC4 AC5 SIGNAL MUX REF MUX + ZoomingADCTM PGA ADC READY CONTROL LOGIC D0 D1 GPIO CHARGE PUMP 4MHz OSC I2C SCL SDA MCU VPUMP VSS V1.5 © 2007 Semtech Corp. 1 www.semtech.com SX8723 ZoomingADC™ for Pressure and Temperature Sensing ADVANCED COMMUNICATIONS & SENSING Table of Contents Description........