Azoteq Introduces a High Sensitivity Capacitive Proximity and Touch Sensor for Cell Phones and Tablets
“The next advance in touch technology is the addition of proximity technology which requires a sensor 100 times more sensitive than existing solutions and Azoteq is first to introduce a single chip solution”, said Dr. Frederick Bruwer, CEO and President of Azoteq.
“The IQS128 is the first device to offer a solution to meet FCC SAR (specific absorption rate) requirements for cell phones and tablets to reduce RF power when the device is in close contact to a human” said Kobus Marneweck, VP of Marketing. “The ProxSenseTM family now has over 20 products”, he added.
Significant savings can be realized compared to electro-mechanical switches and the IQS128 offers the added advantages of electrical isolation and unlimited operation. A touch pad can be realized with a simple pad on a PCB and easily projected through a variety of dielectric materials. The IQS128 can be used to implement a triple action switch - an approaching finger wakes the device, a light touch selects a first function and press selects a second function.
The IQS128 is specifically aimed at proximity handheld detection in tablet PC’s, on-ear detection for mobile phones and other proximity applications. The capacitive technology holds advantages of very low power consumption, omnidirectional sensing and does not require an aperture lens.