Capacitance-to-Digital Converters

These capacitance-to-digital converters are based on the patented PICOCAP measuring principle, which uses precision discharge time measurement to get the ratio of sensor capacitance versus reference capacitance. 

By means of our TDC technology we can measure with picosecond resolution which allows us to have very short discharge time in the few microseconds range. The input capacitance can range between a Picofarad and hundreds of Nanofarads, which means that there is almost no limit to the size of capacitor. 

The multi-channel CDC provides a high degree of flexibility with respect to accuracy, speed and operating current. By means of a variation in averaging and sample rate users can switch from high resolution (20 Bit) to low power (3 µA) to high speed (50 kHz). A powerful integrated CPU enables on-chip linearization and temperature measurement and compensation.