IQS143 Datasheet (data sheet) PDF





IQS143 Datasheet, 3-Channel Capacitive Sensor

IQS143   IQS143  

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IQS143 Datasheet IQ Switch® - ProxSense TM Series 3 Channel Capacitive Sensor w ith I2C compatible interface and Compen sation for Sensitivity Reducing Objects Unparalleled Features Sub 6uA current consumption Automatic tuning for optim al operation in various environments Th e IQS143 ProxSense™ IC is a fully int egrated 3 channel capacitive contact an d proximity sensor with market leading sensitivity and automatic tuning to the sense antenna. The IQS143 provides a c ost effective implementation in a small outline package. The device is ready f or use in a large range of applications while the I2C compatible interface pro vides full control to a host

IQS143 Datasheet, 3-Channel Capacitive Sensor

IQS143   IQS143  
. Main Features 3 Channel input device Proximity & Touch on each channel I2C c ompatible data output ATI: Automatic tu ning to optimum sensitivity Supply Volt age 3V to 5.5V 8 Power Modes Internal v oltage regulator and reference capacito r On chip shield amplifiers Large proxi mity detection range Automatic drift co mpensation Development tools available (VisualProxSense and USB dongles) Small outline MSOP–10 Applications White g oods and appliances Office equipment, t oys, sanitary ware Proximity detection that enables backlighting activation (P atented) Wake-up from standby applicati ons Replacement for electromechanical s witches GUI trigger and GUI control pro ximity detection. Available options T A MSOP-10 -40°C to 85°C IQS143 IQ Switch® ProxSense™ Series Functiona l Overview 1 Introduction The IQS143 is a three channel capacitive proximity a nd touch sensor featuring an internal v oltage regulator and reference capacito r (Cs). The device has three dedicated input pins for the connection of the se nse antennas. Three output pins are use d for serial data communication through the I2C compatible protocol, including an optional RDY pin. The device automa tically track slow varying environmenta l changes via various filters, detect n oise and has an Automatic Antenna Tuning Implementation (A








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