CAV444 Datasheet, PDF (1/12 Pages) Analog Devices – C/V transmitter IC with adjustable output voltage for capacitive input signals

CAV444 – C/V transmitter IC
with adjustable output voltage
for capacitive input signals
PRINCIPLE FUNCTION
Capacitance/Voltage converter IC with an adjustable, differential output and
temperature detection
V_CC = 5V ± 5%
Measurment capacitor
(18 pF bis 2.2 nF)
CAV444
V_OUT= 2,5 ± 1,4V
Temperature
8mV / K
Typical applications
CAV444 is an integrated capacitance-to-voltage transducer. The IC is particularly suitable for all
measurements designed to convert a capacitive input signal into a voltage that is direct proportional
to the change in the capacitance to be measured. It can be used for:
• Measurement of humidity
• Level sensing
• Material identification
• Object detection
• The IC can be used as an input circuit for microprocessors or as a stand-alone IC
Analog Microelectronics GmbH
An der Fahrt 13, D – 55124 Mainz
Phone: [phone]
Fax: [phone]
Internet: http://www.analogmicro.de
Email: [e-mail]
Mai 2010 - Rev 1.1 - Page 1/12