MAX30131/-2/-4 Programmable Analog Front Ends

Analog Devices MAX30131/-2/-4 Programmable Analog Front Ends (AFEs) feature 1-, 2-, and 4-channel ultra-low-power programmable operation, ideal for electrochemical sensors. The AFEs provide biasing and the complete measurement path, including the analog-to-digital converters (ADCs). The flexibility of the MAX30131/MAX30132/ MAX30134 enables them to work with both two and three-terminal electrochemical sensors, supplying both DC measurement and electrochemical impedance spectroscopy (EIS) measurement capability. The devices include an internal temperature sensor and a programmable voltage reference to support external temperature monitoring. Furthermore, the AFEs have an external reference source to integrate voltage monitoring of bias and supply voltages for safety and compliance.