Features ? Complete Heart-Rate Sensor Solution Simplifies Design ? Integrated LEDs, Photo Sensor with amplified current output ? Tiny 5.88 x 2.36 x 0.95 mm, 12-pin packaging design ? Photo Sensor ? Good output linearity ? Wide supply voltage range: 1.5V to 5.5V ? LEDs ? Four independent green LEDs (λ d = 525nm) ? Operation Temperature Range: -20°C to +85°C ? Rohs and Halogen free compliance