MTCH112-I/SN

MICROCHIP  MTCH112-I/SN  接近传感器, SOIC, 8 引脚, 1.8 V, 3.3 V

The is a 2-channel Proximity/Touch Controller provides an easy way to add proximity and/or touch sensor detection to any application. The device implements either two capacitive sensors or one sensor and one active guard driver. The optional device configuration through I²C™ allows presets to be loaded in a production environment. Automatic calibration routines is used by default to choose the best options, so user configuration is not required. The MTCH112 uses a sophisticated optimization algorithm to actively eliminate noise from the signal. While the noise level is being measured, the requirements for a proximity or touch detection are updated to reflect the degree of uncertainty in the readings. When a press is detected for the first time, the threshold is automatically calibrated to choose a smart threshold for the release and next press. This creates a system that dynamically optimizes the signal to-noise ratio for its environment.

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High signal to noise ratio SNR

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Adjustable sensitivity

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Noise rejection filters

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Automatic calibration with optional user presets

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Dynamic threshold management

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Automatic environmental compensation

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Guard sensing option

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Stuck release mechanism

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I²C™ communication

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No required external components

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Low-power mode

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Response time as low as 10ms

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Hardware error detection