IQS143 Datasheet | Azoteq

Features Sub 6u A current consumption Automatic tuning for optimal operation in various environments The IQS143 Prox Sense™ IC is a fully integrated 3 channel capacitive contact and proximity sensor with market leading sensitivity and automatic tuning to the sense antenna. The IQS143 provides a cost effective implementation in a small outline package. The device is ready for use in a large range of applications while the I2C patible interface provides full control to a host. Main Features 3 Channel input device Proximity & Touch on each channel I2C patible data output ATI: Automatic tuning to optimum sensitivity Supply Voltage 3V to 5.5V 8 Power Modes Internal voltage regulator and reference capacitor On chip shield amplifiers Large proximity detection range Automatic drift pensation Development tools available (Visual Prox Sense and USB dongles) Small outline MSOP- 10 Applications White goods and appliances Office equipment, toys, sanitary ware Proximity detection that enables backlighting activation (Patented) Wake-up from standby applications Replacement for electromechanical switches GUI trigger and GUI control proximity detection. Available options TA MSOP-10 -40°C to 85°C IQ Switch® Prox Sense™ Series Functional Overview 1 Introduction The IQS143 is a three channel capacitive proximity and touch sensor featuring an internal voltage regulator and reference capacitor (Cs). The device has three dedicated input pins for the connection of the sense antennas. Three output pins are used for serial data munication through the I2C patible protocol, including an optional RDY pin. The device automatically track slow varying environmental changes via various filters, detect noise and has an Automatic Antenna Tuning Implementation (Auto - ATI) to tune the device for optimal sensitivity. 1.1 Applicability All specifications, except where specifically mentioned otherwise, provided by this datasheet are applicable to the following ranges:1 Temperature -40°C to +85°C...