acam PCap01
The PCap01A can be used for grounded single and differential sensors as well as for floating single and differential sensors. With grounded capacitors the stray capacitance inside the chip will be compensated. With floating capacitors, further to the internal stray capacitance, the external stray capacitances as well get compensated.FEATURES
● Digital measuring principle in CMOS technology● Up to 8 capacitances in grounded mode
● Up to 4 capacitances in floating mode (potential- free and with zero bias voltage)
● Compensation of internal (grounded) and external parasitic capacities (floating)
● High resolution: up to 6 aF at 5 Hz and 10 pF base capacitance, or 17 bit resolution at 5 Hz with 100 pF base capacitance and 10 pF excitation
● High measurement rate: up to 500 kHz
● Extremely low current consumption possible: Down to 4 µA at 3 Hz with 13.4 bit resolution acam messelectronic gmbh - Friedrich-List-Str.4 - 76297 Stutensee - Germany - 1-1 ® PCapØ1Ax-0301
● High stability with temperature, low offset drift (down to 30 aF per Kelvin), low gain drift when all compensation options are activated.
● Dedicated ports for precision temperature measurement (with Pt1000 sensors, the resolution is 0.005 K)
● Serial interfaces (SPI or I2C compatible)
● Self-boot capability
● Single power supply (2.1 to 3.6 V)
● No need...