GENERAL DESCRIPTION
The AD7150 delivers a complete signal processing solution for capacitive proximity sensors, featuring an ultralow power converter with fast response time. The AD7151 is a single-channel, lower power alternative to the AD7150.
FEATURES
Ultralow power
2.7 V to 3.6 V, 100 μA
Response time: 10 ms
Adaptive environmental compensation
2 independent capacitance input channels
Sensor capacitance (CSENS) 0 pF up to 13 pF
Sensitivity to 1 fF
EMC tested
2 modes of operation
Standalone with fixed settings
Interfaced to a microcontroller for user-defined settings
2 proximity detection output flags
2-wire serial interface (I2C compatible)
Operating temperature
−40°C to +85°C
10-lead MSOP package
APPLICATIONS
Proximity sensing
Contactless switching
Position detection
Level detection