The MVCT018 is a programmable and very accurate capacitance-to-digital converter interface, designed to be easily integrated with capacitive sensors. The chip features fast measurement times, very low operating power, and standby current, making it most suitable for low-power and portable applications. The ASIC includes a high-accuracy integrated temperature sensor that enables the user to compensate for temperature dependencies of sensor elements, as
needed.
Dual Channel Digital Capacitive Sensor Interface
Overview
Key Features
- Each channel has an independent trimmable input capacitance range, for flexibility and dynamic range optimization
- Wide operating temperature range: -40 to 125°C
- Extended supply voltage range: 1.71 to 3.6V
- Low noise capacitance measurement: 17aF @ 21-Bit resolution
- On-chip IIR filter for extremely low noise measurements: 4aF @ 21-Bit resolution
- On-chip processing engine for linearization and temperature
- compensation – provides end-user with a fully calibrated output
- Internal high-accuracy and low-drift temperature sensor with very low RMS noise: 0.01°C @14-Bit resolution
- Programmable resolution settings for each mode: up to 21-Bit resolution
- Programmable alarm and clipping functions
- Low standby current: 15nA
- Supports 3-wire, 4-wire SPI, and I2C communication protocols
Applications
- Pressure, Humidity, and
- Temperature monitoring
- Home Automation Control
- HVAC / VAV
- Pressure Transmitters
- IoT Environmental Sensing
- Level Sensing
Technical Specifications
Foundry, Node
TSMC 0.18um
Maturity
Silicon Proven
Availability
Available
TSMC
Silicon Proven:
180nm