The MAXM86161 can also improve sensitivity and accuracy with its high signal-to-noise ratio (SNR). Both of the continuous-monitoring body sensors provide highly accurate measurements of vital signs.
MAXM86161 in-ear heart-rate monitor and pulse oximeter is a fully integrated solution that measures only 2.9mm x 4.3mm x 1.4 mm. It provides accurate heart-rate and blood-oxygen saturation (SpO2) measurements. It is optimized for in-ear applications with its small package and high SNR (3dB improvement with band limiting signal for PPG use cases compared to closest competitor). MAXM86161 uses around 35 percent less power to extend battery life. An integrated AFE also keeps board space low and reduces BoM.
The MAX30208 digital temperature sensor has a temperature measurement accuracy of ±0.1°C with fast response time. It also fulfils the power and size demands of small, battery-powered applications. The temperature is measured at the top of the device, so it does not suffer from thermal self-heating. MAX30208 is compatible with up to four I2C addresses to enable multiple sensors on the same IC bus.