AS1716 Capacitive Sensor Interface

austriamicrosystems AG

Description

www.DataSheet4U.com AS1716 C a pa c i t i v e S e n s o r I n t e r f a c e D a ta s h e e t 1 General .
AS1716 is an analog front end specifically designed for unbiased Capacitive Sensors, as for instance Knock Sensors in Automotive, to be interfaced wit.

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Datasheet Specifications

Part number: AS1716
Manufacturer: austriamicrosystems AG
File Size: 442.31 KB
Datasheet: AS1716_austriamicrosystemsAG.pdf
Description: Capacitive Sensor Interface

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

Applications

* Analog front end for Capacitive Sensors to Analog to Digital Converters and DSP. Figure 1. AS1716 Block Diagram VDDA VSSA NC INN VDDA + VDDA/2 + VDDA/2 Gain Control x0.5, x1, x2, x4 + VDDA/2 + OUT Multiple Feedback LP Filter fc ~23kHz typ. INP + VDDA/2 AS1716 VDDA/2 GA GB www. austriamic

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AS1716 Capacitive Sensor Interface austriamicrosystems AG

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