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ZSSC3122 Datasheet Low-voltage Capacitive Sensor Signal Conditioner

Manufacturer: Renesas

Overview: cLite™ Low-Voltage Capacitive Sensor Signal Conditioner ZSSC3122 Datasheet.

Datasheet Details

Part number ZSSC3122
Manufacturer Renesas
File Size 1.68 MB
Description Low-Voltage Capacitive Sensor Signal Conditioner
Datasheet ZSSC3122-Renesas.pdf

General Description

The ZSSC3122 is a CMOS integrated circuit for accurate capacitance-to-digital conversion and sensor-specific correction of capacitive sensor signals.

Digital pensation of sensor offset, sensitivity, and temperature drift is acplished via an internal digital signal processor running a correction algorithm with calibration coefficients stored in a non-volatile EEPROM.

The ZSSC3122 is configurable for capacitive sensors with capacitances up to 10pF and a sensitivity of 125aF/LSB.

Key Features

  • Maximum target input capacitance: 10pF.
  • Sampling rates as fast as 0.7ms at 8-bit resolution; 1.6ms at 10-bit; 5.0ms at 12-bit; 18.5ms at14-bit.
  • Digital compensation of sensor: piece-wise 1st and 2nd order sensor compensation or up to 3rd order single-region sensor compensation.
  • Digital compensation of 1st and 2nd order temperature gain and offset drift.
  • Internal temperature compensation reference (no external components).
  • Programmable capacitance span and offset.

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