CAV424 is an integrated capacitance-to-voltage converter suitable for the measurement of single or differential input capacitances. It generates a ratiometric output voltage signal and can be used as front end for µC. The IC's wide measurement range, low EM susceptibility and high sensitivity allow a multitude of applications.
Applications
Humidity measurement
Distance measurement
Capacitive pressure sensors
Level sensing
Material identification
Object detection
Short Specifications
Supply Voltage (VCC)
5 V ± 5%
Capacitance input range
5 pF .. 40 nF (single), 0 .. 40 nF (differential)
Voltage output
1 .. 4 V (ratiometric), adjustable
Reference voltage
2.5 V (ratiometric)
Temperature range
-40 °C .. 105 °C
Temperature sensor output
2.20 .. 2.45 V (8 mV/K)
Package / Delivery forms
SO16, on DIL16-adapter, sawn 6″ wafer on blue foil
Differential capacitance measurement with CAV424 as analog front end for a µC. CAV424 with single input capacitance and adjustable, analog ratiometric voltage output.
Ordering Codes and Product Inquiry / Samples
Order number
Delivery form
CAV424-0-SO16
SO16(n) package
CAV424-WAF
sawn wafer on 6″ blue foil
CAV424-Adapt
CAV424 soldered to an SO16-DIL16 adapter
Accessories
Order Number
Description
BBCAV424
A preassembled breadboard with easily adaptable capacitance range. Suitable for first experiments using CAV424. Please see the document CAV424-BB for further information.