Integrated PPG and ECG Biosensor Module Targets Mobile Devices

Article By : Maxim Integrated Products

The integrated biosensor module provides accurate, synchronized PPG and ECG monitoring

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 new MAX86150 from Maxim Integrated Products is a first-of-a kind biosensor module, comprised of 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 MAX86150 overcomes challenges by sampling 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), a measurement of noise rejection, 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.

The MAX86150 is available in a 3.3mm x 6.6mm x 1.3mm, 22-pin optical module.

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