By Analog Devices Inc 55
Analog Devices' ADUX1020 is a highly efficient photometric sensor with an integrated 14-bit analog-to-digital converter (ADC) and a 20-bit burst accumulator that works in concert with a flexible light emitting diode (LED) driver. It is designed to modulate an LED and measure the corresponding optical return signal. The digital engine includes circuitry and control for data aggregation and proximity detection. The data output and device configuration use a 1.8 V I2C interface. The control circuitry includes flexible LED pulse width and period generation combined with synchronous detection. This circuitry is complemented by a low-noise, low-power, and wide dynamic range configurable analog front end (AFE), clock generation, LED driver, and digital logic for position and smart sample mode (event driven x, y coordinates, and relative z data). This complete AFE features ambient light rejection, avoiding corruption due to external interference.
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