Capacitive touch devices
1 min read
Mixed signal semiconductor specialist, Integrated Device Technology has announced the newest members of the IDT PureTouch family of capacitive touch devices. Targeting low channel consumer, white goods and portable devices, the PureTouch technology can be implemented through button, slider and scroll options.
IDT says that by incorporating lower power consumption as well as new features, including advanced proximity sense capability and power-on touch detection, the latest controllers can help designers improve product differentiation and time-to-market with easy customisation and simple system design for those devices requiring eight or fewer buttons.
The LDS6200 range is designed to detect up to eight simultaneous touches and includes built in proximity sensing, which allows activation of features such as backlighting and wake up prior to the actual touch contact.
IDT has also incorporated power-on touch detection to solve the problem of end devices not recognising existing touches during power on. This feature allows the end application to recognise touch events already present at power on a critical capability enabling many consumer devices to enter diagnostic modes.
The LDS6200 enables power-efficient continuous scan of buttons without sleep modes, making it suitable for battery driven portable applications. In continuous scan mode, it is said to consume 100uW, which is 20% lower than the current product family.
