CAV424

C/V-converter for single and differential capacitive input signals

Analog Microelectronics GmbH

An der Fahrt 13, D – 55124 Mainz

July 2014 – Rev. 3.0

Phone:+49 (0)6131/91 0730-0

Fax:

+49 (0)6131/91 073-30

Internet: www.analogmicro.de

E–Mail: info@analogmicro.de

Principle Function

Capacitance/Voltage-converter IC with adjustable voltage output and integrated

temperature sensor

Function

CAV424 is an integrated capacitance-to-voltage converter. The IC measures the capacitance of a

connected capacitive measurement head against a reference capacitance and converts the differ-

ence into a DC output voltage.

CAV424 can be used as analog front end for a micro processor or as stand-alone IC.

Typical Applications

•

Humidity measurement

•

Distance measurement

•

Suitable for capacitive pressure sensors

•

Level sensing

•

Material identification

•

Object detection