Synchronized PPG and ECG biosensor module targets mobile devices

January 09, 2019 //By Julien Happich
Synchronized PPG and ECG biosensor module targets mobile devices
Designers now have an easier way to deliver both photoplethysmogram (PPG) and electrocardiogram (ECG) measurements for health monitoring from a mobile, battery-powered device.

The MAX86150 from Maxim Integrated Products integrates internal LEDs, photodetectors and an ECG analog front-end (AFE) to provide highly accurate, FDA-certifiable PPG and ECG performance in compact, power-saving designs, including mobile phones, laptops, tablets and smart speakers.
The 3.3x6.6x1.3mm, 22-pin optical module samples both PPG and ECG simultaneously to provide the highest sensitivity of pulse transit time. To reduce battery drain, the module can be shut down through software with near-zero standby current, allowing the power rails to remain powered at all times. At 136dB, the module’s common mode rejection ratio (CMRR) is the highest on the market. Its 100mA-capable, high-dynamic-range LED driver enables higher sensitivity on an array of skin types. A low-impedance contact for the ECG sensor enables more accurate measurements, even in cases of dry skin.

Maxim Integrated - www.maximintegrated.com


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