PCAP04 is a capacitance-to-digital converter (CDC) with integrated digital signal processor (DSP) for on-chip data post-processing. Its front end is based on the PICOCAP principle.
This conversion principle offers outstanding flexibility with respect to power consumption, resolution and speed.
Further, PCap04 covers a wide capacitance input range from a few femtofarads up to several hundreds of nanofarads. It is easy to configure the PCap04 for different capacitance measurement tasks, i.e. single as well as differential sensors in both, grounded or floating connection.
The on-chip DSP allows to implement sensor algorithms like linearization and temperature compensation, with data output in a digital (SPI or IIC) or analog (PDM/PWM) way.
For a quick and easy start-up with the PICOCAP product line we offer a general evaluation kit. The system is connected to the PC’s USB interface through the PICOPROG programming device. A comfortable evaluation software allows to program and configure the PCAP04. The measurement data can be shown numerically and graphically. Finally, the data can be exported to text files for further analyses.