DESCRIPTION

· The Renesas OB1203 SD and OB1203LC Sensor Modules integrate an optical biosensor with proximity sensor and ambient light sensing features, ideal for handheld electronic devices.

· The OB1203 PPG biosensor combines light sources, drivers, analog-digital conversion, and I2C communication in a single optical package.

· Data from the OB1203 biosensor can determine heart rate, oxygen saturation, respiration rate, and heart rate variability, a measure of stress.

· The OB1203LC features photodiodes admitting light across the visible and near-infrared range, while the OB1203SD includes color filters with RGB color and Lux sensitivity similar to the human eye.

FEATURES

· SpO2 measurement less sensitive to skin color.

· Industry’s smallest optical biosensor module, fully integrated and trimmed, including two LEDs, 250mA maximum drive current, and photodetectors.

· PPG output resolution: 16 to 18 bits, data stored in 18-bit wide, 32-sample FIFO memory.

· Integrated averaging function for higher signal-to-noise ratio and data rate reduction.

· Programmable measurement rate: up to 3200 samples per second.

· Light and Color Sensor (OB1203SD) features: output resolution 13 to 20 bits, 3 gain modes, stable spectral response, high lux accuracy, absolute sensitivity 0.06 lux to >150000 lux, four parallel channels, accurate Correlated Color Temperature, and CIE 1931 XYZ color measurement.

· Proximity Sensor features: integrated and trimmed LED source, driver, and photodetector, programmable pulsed LED up to 250mA output current, high resolution (12 to 16 bits), object movement detection, ambient light suppression >100klx, crosstalk cancellation, and short wavelength blocking filter.

APPLICATIONS

· Handheld electronic devices requiring heart rate, oxygen saturation, respiration rate, and heart rate variability measurements.

· Devices needing accurate ambient light and color sensing.

· Applications requiring proximity sensing with high ambient light suppression.

· Industrial designs utilizing SpO2 measurements behind visibly dark "IR ink".