AD7150BRMZ

AD7150 is an ultra-low power, 2-channel, capacitance converter for proximity sensing. It delivers a complete signal processing solution for capacitive proximity sensors, featuring an ultralow power converter with fast response time. The AD7150 uses Analog Devices, Inc., capacitance-to-digital converter (CDC) technology which combines features important for interfacing to real sensors, such as high input sensitivity and high tolerance of both input parasitic ground capacitance and leakage current. The integrated adaptive threshold algorithm compensates for any variations in the sensor capacitance due to environmental factors like humidity and temperature or due to changes in the dielectric material over time. By default, the AD7150 operates in standalone mode using the fixed power-up settings and indicates detection on two digital outputs. Typical application includes proximity sensing, contactless switching, position detection and level detection.

• Ultralow power: 2.7V to 3.6V, 100μA
• Response time: 10ms
• Adaptive environmental compensation
• 2 independent capacitance input channels
• EMC tested
• 2 modes of operation: standalone with fixed settings and interfaced to MCU for user-defined settings
• 2-wire serial interface (I2C compatible)
• 2 proximity detection output flags
• 10 lead MSOP package
• Operating temperature range from -40 to 85°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party