Updated replacements for Silicon Labs Si114x products can be found here:



The monolithic Si114x sensors integrate high sensitivity photodiodes, a low-noise analog-to-digital converter, analog filtering, up to 3-LED drivers and a digital I2C control interface into one package. Broad spectral sensitivity supports green through 940nm LEDs for wrist, ear, and finger-tip heart rate/SpO2 signals. This low-power sensing family enables long battery life with standby less than 500 nA and a short 25.6μs LED on time.


BIOMETRIC, PROXIMITY, AND AMBIENT LIGHT SENSING
  • Accurately sense weak blood flow signals
  • Advanced signal processing to extract heart rate information
  • Broad spectral sensitivity supports green through 940nm LEDs
  • Dynamically drive 1, 2, or 3 LEDs
  • Long battery life
  • I2C interface for ease of communication with host MCU
  • Tiny 2 mm x 2 mm clear QFN package


Si114x Products


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