MCU for precision sensing in industrial applications

20-12-2024 | Mouser Electronics | Semiconductors

Mouser now stocks the MAX32675C ultra-low-power Arm Cortex-M4F MCU from Analog Devices, Inc. (ADI). The highly integrated, mixed-signal MCU delivers high performance while maintaining ultra-low power consumption. The MCU is suited to 4mA to 20mA loop-powered sensors and transmitters for measuring pressure, temperature, and flow in industrial and medical applications.

The MCU is based on the ultra-low-power Arm Cortex-M4 with an FPU. It includes 384KB (376KB user) of Flash memory and 160KB of SRAM, which can be optionally retained even in low-power modes. Error correction coding (ECC), capable of single-error correction and double-error detection, covers the entire Flash, SRAM, and cache to provide reliable code execution in demanding applications.

The MAX32675C MCU features an AFE with an integrated, low-power HART, enabling bidirectional digital data transfer over a current loop to and from industrial sensors for configuration and diagnosis. The AFE also provides two 12-channel sigma-delta ADCs (Δ-Σ) that digitise external analog signals and system parameters such as temperature and supply voltages. A PGA with adjustable gains precedes each ADC. Users can convert ADC outputs from integer to single-precision floating point format in real-time for improved performance and accuracy. The MCU includes an AES engine, persistent key storage, and other robust security features. With an operating temperature range of -40C to +105C, the MCUs are reliable in challenging industrial environments.

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By Nigel Seymour

Nigel has worked in the advertising and magazine publishing industry for many years prior to helping publish articles in the early years of Electropages. He has worked with technical agencies producing documents and artwork for the web over the last few years. He has been products editor for Electropages for over five years.