Analog Devices unveils high-precision, low-power meter-on-a-chip for portable health applications

Analog Devices has unveiled a high-precision, low-power meter-on-a-chip for a range of portable health applications.

The ADuCM350 single-chip combines a 16-bit accurate analog front-end (AFE), which includes a configurable multi-sensor switch matrix, hardware waveform generator and discrete Fourier transform (DFT) engine.

The chip provides a processing subsystem and an industry-standard software development environment to support a complete product development roadmap. The solution has many applications such as point-of-care diagnostics, home/self-test health devices, and wearable vital signs monitors, including those for sports and fitness.


The ADuCM350 offers exceptional accuracy and integration on-chip making it suitable for designing portable products that monitor health and wellness. It provides easy connectivity to passive and active sensors and supports sensor fusion functionality that enables exceptionally accurate measurements of human physiological data even in the presence of interferers.

The ADuCM350 is optimized for system-level performance and signal measurement accuracy, including those monitoring devices powered by a single coin-cell battery, and features a precision AFE with a 16-bit accurate, 160-kSPS A/D converter, +/-0.2% accurate voltage reference, and a 12-bit D/A converter.

The sensor fusion functionality allows designers to expand product measurement capabilities. For example, the ADuCM350 platform can support calorie burn applications by combining galvanic skin response for heart rate and respiration, with an ultra-low-power 3-axis MEMS accelerometer for altitude and motion detection.

An extensive peripheral set of communication I/O including USB, audio, display, serial and touch supports differentiation and rapid feature expansion. The ADuCM350 AFE sequencer enables designers to develop the software for a measurement procedure only once and then reliably port it across an entire product family.

ADuCM350 healthcare meter-on-a-chip comes with 16-bit accurate 160 kSPS A/D converter, 0.2 percent precision voltage reference, 12-bit no missing code D/A converter, hardware accelerators for waveform generation and filtering, 16-MHz ARM Cortex M3 processor, 384-kB flash memory, 16-kB EEPROM and 32-kB SRAM and sensor fusion support.

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