[原创] Maxim MAX30110可穿戴血氧仪和心率模拟前端(AFE)解决方案

Maxim公司的MAX30110是完整的光学血氧和心率检测模拟前端(AFE),具有高分辨率光读出的信号处理通路,并内置了环境光消除和大电流LED驱动DAC,形成完整的光读出信号链.和蔼外接LED和光二极管,MAX30110是腕式应用的最低功耗最高性能心率检测解决方案.主电源1.8V,支持标准SPI兼容接口,主要用在腕式可穿戴设备,耳内可穿戴设备,SpO2监测设备和健身可穿戴设备.本文介绍了MAX30110主要优势和特性,框图,典型应用电路图以及评估板MAX30110 EVK包括Micro-PCB,传感器PCB1和传感器PCB2在内的主要特性,电路图,材料清单和详细的PCB设计图.

The MAX30110 is a complete optical pulse oximetry and heart rate detection integrated analog front-end. The MAX30110 has a high-resolution, optical readout signal-processing channel with built-in ambient light cancellation,as well as high-current LED driver DACs, to form a completeoptical readout signal chain. With external LED(s) and photo diode(s), the MAX30110 offers the lowest power, highest performance heart rate detection solution for wrist applications.

The MAX30110 operates on a 1.8V main supply voltage, with a separate 3.1V to 5.25V LED driver power supply. The device supports a standard SPI compatible interface, as well as shutdown modes through the software with near-zero standby current, allowing the power rails to remain powered at all times.

MAX30110主要优势和特性:
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