Note: The Si114x family of parts are Not Recommended for New Designs (NRND). For newer designs, we recommend Si115x parts.
Our Si1143/44 solution combines a high-precision optical sensor, an LED source, a proprietary algorithm, and a low-power microcontroller (MCU) to deliver a low-power, dynamic heart rate monitoring (HRM) solution for use in fitness bands, smart watches, and consumer health applications.
The Si1143/44 uses a single green LED, which allows it to be packaged in an exceptionally small package (2.9x4.9 mm), and delivers great performance at a low cost and size.