Maxim Press Release | Industry's First PPG and ECG Biosensor Module for Mobile Devices

The MAX86150 provides high-precision, simultaneous PPG and ECG monitoring

Synchronizing PPG and ECG measurements has always been a challenge, as designers must use two separate biosensors that often take up more board space and consume more power than a mobile device can handle. In addition, achieving high-precision measurements is challenging, especially when blood flow is slow or skin is dry, which can affect sensor sensitivity. The MAX86150 overcomes these challenges, capturing both PPG and ECG simultaneously while providing the highest sensitivity for pulse transit time. To reduce battery drain, the module supports software shutdown, near-zero standby current, and allows the supply voltage to remain active. The MAX86150 optical module is available in a 3.3mm x 6.6mm x 1.3mm, 22-pin package.

• High precision: As an important indicator of noise suppression capability, the module's common mode rejection ratio (CMRR) is 136dB, which is higher than similar products on the current market. Its 100mA, high dynamic range LED driver enables higher sensitivity under various skin types. In addition, the ECG sensor's contact impedance is very low, which can achieve higher accuracy measurement even for dry skin.

• Long Battery Life: Ultra-low shutdown current of 0.7μA (typ) minimizes battery drain. Power consumption is lower than the nearest competitive device, further extending battery life.

• Easy to deploy: The module uses dry electrode operation to obtain high-precision readings without the need for gel, liquid, sticky or wet electrode pads on other parts of the body.

• Small size: Integrates an ECG sensor and an optical PPG sensor in the same form factor as a standalone ECG sensor, saving space while providing more functionality and eliminating the need for a third electrode (as required by competing solutions).

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