SX8725S

SX8725S ZoomingADC for sensing data acquisition ADVANCED COMMUNICATIONS & SENSING DATASHEET DESCRIPTION The SX8725S 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 1 differential input, it can adapt to multiple sensor systems. Its digital outputs are used to bias 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 1 differential or 2 single-ended signal inputs Programmable Resolution versus Speed versus Supply current Digital outputs to bias Sensors Internal or external voltage reference Internal time base Low-power (250 uA for 16b @ 250 S/s) SPI interface, 2 Mbps serial clock www.DataSheet4U.com APPLICATIONS Industrial pressure sensing Industrial temperature sensing Industrial chemical sensing Barometer Compass ORDERING INFORMATION DEVICE SX8725SWLTDT PACKAGE MLPQ-W-16 4x4 REEL QUANTITY 1000 - Available in tape and reel only - WEEE/RoHS compliant, Pb-Free and Halogen Free. FUNCTIONAL BLOC DIAGRAM SX8725S - VBATT VREF + - + - AC0 AC1 AC2 AC3 SIGNAL MUX REF MUX + ZoomingADC TM PGA ADC READY CONTROL LOGIC SCLK D0/VREF,OUT D1/VREF,IN GPIO CHARGE PUMP 4MHz OSC SPI MOSI MISO/READY SS VPUMP VSS MCU Revision 1.0 © Semtech February 2011 Page 1 www.semtech.com SX8725S ZoomingADC for sensin...