Feature: Medical


Figure 3: The MAX32655 microcontroller’s different power modes, such as standby mode shown here, can retain state or completely power down different hardware subsystems to reduce power consumption while maintaining operational capability. (Image source: Analog Devices)


mixed-signal microcontroller addresses the specialised requirements for medical and industrial sensor applications. The MAX32675C offers low power


consumption at start up and during run time, along with the high levels of integration increasingly required in these


applications. It combines its 12 MHz Arm Cortex-M4 processor and FPU with 384 Kbytes of flash, 160 Kbytes of SRAM, and 16 Kbytes of cache, as well as a precision analog front-end (AFE) and HART modem (Figure 5). Communicating with the processor


over an internal serial peripheral interface (SPI), the AFE provides a set of peripherals typically required in industrial and medical sensor applications including a 12-bit digital- to-analog converter (DAC), and dual high-precision delta-sigma analog-to-


www.electronicsworld.co.uk March 2025 33


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