Check out a New Design of Analog Front End for a Heart Rate Monitor

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Olga Levenets
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Check out a New Design of Analog Front End for a Heart Rate Monitor

Check out a new app note below that describes the design procedure of an analog front end for a heart rate monitor. The circuit utilizes a commonly used technique of measuring the green light reflected from skin. A unique Auto-Trim feature of the SLG47004 allows achieving stable circuit operation in various conditions. The application note also contains test results of a hardware prototype:

https://www.dialog-semiconductor.com/an-cm-307

Device: 
Device Number: 
SLG47004