AS1716 Datasheet - austriamicrosystems AG

AS1716 Capacitive Sensor Interface

AS1716 is an analog front end specifically designed for unbiased Capacitive Sensors, as for instance Knock Sensors in Automotive, to be interfaced with Analog Digital Converters with Sample and Hold input stages. The device provides differential inputs, a 1st order low pass filter to cutoff the high.

AS1716 Features

* ! ! ! ! Differential input stage with wide input range Resistive sensor biasing (VDDA/2) Programmable Gain (x0.5, x1, x2, x4) Internal 2 order low pass Multiple Feedback Filter with a min. cut off frequency of 16kHz Single supply operation: 4.5V to 5.5V Operating Temperature range: -40°C to +125°C

AS1716_austriamicrosystemsAG.pdf