Ultra-low power (2.4uA) multi-purpose, smart power sensor interface chip
This ASIC is a generic and multi-purpose capacitive sensor interface chip that can read out a wide-range of sensors such as accelerometers, pressure sensors, tilt sensors, or microphones. Its power consumption is limited to 2.4uA and it can be configured and optimized for specific applications using smart power techniques and programmability. The IC is designed in a 0.5u CMOS technology.
Features:
- Sensor range: 100fF - 10pF
- Programmable sampling (6-b) between 2Hz and 125Hz
- Configurable ADC resolution of 8, 9 or 10 bits
- Current consumption: 2.4uA at 8-bits and 10Hz sampling
- Enhanced CDS (correlated double sampling) and chopping techniques
- Ultra-low power class AB implementation
- Reads out a whole range of capacitive sensors (accelerometers, tilt and pressure sensors)
- Modular concept
- Flexible, configurable
- Power optimization for specific applications or sensors
- Duty cycling
- 0.5u CMOS technology