A proximity and touch sensor solutions provider for sliders, scroll wheels, switches and touch screens, Azoteq has expanded its ProxSense range of capacitive touch and proximity controllers with the addition of IQS243. An advanced digital and analog circuitry allows for superior touch and proximity performance with an unmatched signal to noise ratio of 1000:1.
The President and Chief Executive Officer of Azoteq, Dr Frederick Bruwer stated that the high sensitivity of the ProxSense IQS243 allows for a sensitive capacitive solution that can reliably perform proximity detection in ranges exceeding 150mm. The controller, operational from 1.8 v to 3.6 v can also detect through 15 mm thick glass. The device is also capable of proximity and touch sensing with a low power consumption of just 2.5 µA. It also features a I2C compatible interface, which allows for the remote control of the sensor using a host controller.
The Vice President – Marketing at Azoteq, Kobus Marneweck stated that the IQS243 is an ideal solution with drift compensation and auto tuning features that can enable designers to achieve design success. The features aid in increasing the product’s manufacturability by compensating for the changes in its surroundings.
A complete range of controllers based on the IQS243 technology will be released by Azoteq during the fourth quarter of 2011 and first quarter of 2012. The range will include projected capacitive sensors, 2 channel SO-8 devices and other 3 channel input stand alone devices.
The controllers will feature low power modes along with an inbuilt reference capacitor and voltage regulator. The IQS243 can be used in various applications such as white goods, consumer electronics, sanitary ware, toys, as a replacement for electromechanical switches and in GUI control proximity detection.
Source: http://www.azoteq.com/