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LC717A30UR - Capacitance-Digital-Converter LSI

Description

Power supply (+2.6 V to +5.5 V) (Note 1) Ground (Notes 1, 2) Sensor inputs.

Cin0 to Cin7 are connected to the inverting input of the 1st amplifier through the multiplexer.

All unused input pins must remain open.

Features

  • Differential Capacitive Detection Using Mutual Capacitance.
  • Operates with Small to Large Capacitance Sensor Input Pads.
  • Capacitance Detection Down to Femto-Farad Level.
  • Measurement Time 16 ms for 8 Sensors.
  • Minimal External Components.
  • Selectable Interface: I2C or SPI.
  • Current Consumption: 0.8 mA (VDD = 5.5 V).
  • Supply Voltage: 2.6 V to 5.5 V.
  • AEC.
  • Q100 Qualified and PPAP Capable Typical.

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Datasheet Details

Part number LC717A30UR
Manufacturer onsemi
File Size 235.65 KB
Description Capacitance-Digital-Converter LSI
Datasheet download datasheet LC717A30UR Datasheet

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Full PDF Text Transcription

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LC717A30UR Capacitance‐Digital‐Converter LSI for Electrostatic Capacitive Touch Sensors The LC717A30UR is a high performance, low cost, and highly usable capacitance converter for electrostatic capacitive touch and proximity sensors. 8 capacitance-sensing input channels ideal for use in any end products that needs an array of switches. The LC717A30UR facilitates a short system development time through its automatic calibration function and minimal external components. The detection result (ON/OFF) for each sensor is read out by the serial interface (I2C or SPI).
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