The MAX32600 Wellness Measurement Microcontroller from Maxim is another device targeting the IoT. It’s highly integrated in just the right ways for wearable medical applications including blood glucose, galvanic skin response, and pulse oximetry measurements. The IC features four operational amplifiers, four comparators, four SPST analog switches, four ground switches, eight 100-mA LED drivers, a 16-bit A/D converter with input mux and PGA, and two 12-bit plus two 8-bit D/A converters.
Okay, so that was just the analog stuff this IC provides. Tying this all together is a 24-MHz Cortex-M CPU with 256 Kbytes of flash. The entire IC takes only 175 μA/MHz executing code from cache and less than 1.0 μA in low-power mode. It has a six-channel DMA engine for intelligent peripheral operation while the microcontroller is in sleep mode.
Important for medical apps, the chip includes a Trust Protection Unit for the highest level of security with on-board public key authentication, data encryption, and tamper detection — including fast-erase SRAM for secure key storage. A 160-segment LCD controller is optional.
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