ADT7484A Datasheet | Analog Devices

FEATURES 1 on-chip temperature sensor 1 or 2 remote temperature sensors Simple Serial Transport™ (SST™) interface Rev 1 pliant GENERAL DESCRIPTION The ADT7484A/ADT7486A are simple digital temperature sensors for use in PC applications with a Simple Serial Transport (SST) interface. These devices can monitor their own temperature as well as the temperature of one (ADT7484A) or two (ADT7486A) remote sensor diodes. The ADT7484A/ADT7486A are controlled by a single SST bidirectional data line. The devices are fixedaddress SST clients where the target address is chosen by the state of the two address pins, ADD0 and ADD1. APPLICATIONS Personal puters Portable personal devices Industrial sensor nets FUNCTIONAL BLOCK DIAGRAM ON-CHIP TEMPERATURE SENSOR LOCAL TEMPERATURE VALUE REGISTER DIGITAL MUX SST INTERFACE D1+ D1- (ADT7486A ONLY) D2+ D2- ANALOG MUX A/D CONVERTER REMOTE TEMPERATURE VALUE REGISTER ADDRESS SELECTION ADD1 ADD0 05198-001 ADT7484A/ ADT7486A VDD GND OFFSET REGISTERS RESERVED Figure 1. Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 .analog. Fax: 781.461.3113 ©2006 Analog Devices, Inc. All rights reserved. .. ADT7484A/ADT7486A TABLE OF CONTENTS Features 1 Applications 1 General Description...