Heart rate sensor

Precision Real‑Time Heart Rate Sensing with Low Power

This high‑resolution photoplethysmogram (PPG) sensor delivers real‑time heart‑beat data with sub‑beat accuracy, making it ideal for fitness trackers, medical monitoring, and wellness devices. Featuring a compact 2‑mm x 2‑mm form factor, it integrates an RGB LED and a CMOS photodiode, enabling safe operation at 4.5 mW while maintaining a measurement error of less than ±1 % across a 30–200 bpm range.

The sensor incorporates on‑chip adaptive filtering to cancel motion artifacts and offers a programmable gain and exposure control, allowing manufacturers to fine‑tune performance for a variety of skin tones and motion conditions. Its I²C interface and low‑latency data stream provide straightforward integration into embedded systems.

• Key Spec 1: Measurement accuracy ±1 % over 30–200 bpm
• Key Spec 2: Low‑power operation 4.5 mW (typical)
• Key Spec 3: 2 mm × 2 mm surface area, 5 mm hole depth for flexible mounting
• Common Use Case: Wearable heart‑rate monitors in smart fitness bands and health‑tracking wearables