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AD7150 - Capacitance Converter

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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 singlechannel, lower power alternative to the AD7150.

The AD7150 uses Analog Devices, Inc., capacitance-to-digital converter (CDC) technology, which combines

Overview

Data Sheet Ultralow Power, 2-Channel, Capacitance Converter for Proximity Sensing.

Key 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.

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