Analog Devices Inc. EV-ADUCM350AUDZ

Overview

EV-ADUCM350AUDZ from Analog Devices is a fully integrated, coin-cell-powered evaluation platform for the ADuCM350 precision analog microcontroller-designed for electrochemical and bioimpedance measurement systems. It features a 16-bit, 160 kSPS ADC; 8 current-input and 4 voltage-input channels; autonomous impedance measurement engine (DFT-based); 16 MHz ARM Cortex-M3 core; 384 kB flash; and integrated USB 2.0 PHY-enabling portable point-of-care diagnostics and wearable vital-sign monitors.

For engineers reviewing the EV-ADUCM350AUDZ datasheet, EV-ADUCM350AUDZ pinout, EV-ADUCM350AUDZ application, or EV-ADUCM350AUDZ equivalent, this board delivers validated hardware reference design, preloaded firmware for sensor excitation/measurement sequencing, real-time USB streaming of raw AFE data, and full debug access via SWD-supporting rapid prototyping of amperometric, voltametric, and impedometric biosensors without custom PCB development.

Technical Context

The EV-ADUCM350AUDZ implements the complete ADuCM350 system-on-chip in a production-grade 120-lead CSP_BGA package, with all analog front-end (AFE) signal paths routed to accessible test points and headers-including dedicated Tx/Rx, CAL, and sensor interface terminals. Its onboard power architecture replicates the ADuCM350's triple-LDO structure (HP/LP/Digital), supports CR2032 battery operation (2.5–3.6 V), and includes USB VBUS regulation for host-powered mode.

It integrates the ADuCM350's autonomous AFE controller, enabling hardware-accelerated DFT-based impedance computation and sequenced excitation/receive cycles independent of CPU intervention. The board provides direct access to all 64 GPIOs, LCD segment/common drivers, CapTouch inputs, and I2S/beeper interfaces-fully exposing the microcontroller's mixed-signal capabilities for system-level validation.

Key Specifications

Availability

EV-ADUCM350AUDZ is available at Aetrix Electronics and suitable for point-of-care diagnostics, wearable biosensor development, and electrochemical instrumentation requiring stable component supply, full evaluation capability, and production-representative signal integrity.

Supply support for EV-ADUCM350AUDZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with over 50 years of innovation in precision measurement and sensor interface technologies.

The EV-ADUCM350AUDZ belongs to Analog Devices' meter-on-a-chip evaluation platform family-engineered to accelerate development of portable, battery-operated diagnostic instruments with integrated analog front-end, processing, and connectivity.

FAQ

What is the primary function of the EV-ADUCM350AUDZ evaluation board?

The EV-ADUCM350AUDZ evaluation board is a complete hardware reference platform for the ADuCM350 precision analog microcontroller. It enables rapid validation of electrochemical and bioimpedance measurement systems-including amperometric, voltametric, and impedometric biosensing-by providing production-matched signal routing, calibrated AFE performance, USB-streamed raw data, and preloaded firmware that exercises the ADuCM350's autonomous sequencer and DFT engine. The EV-ADUCM350AUDZ does not require external programming hardware beyond a standard USB cable.

Does the EV-ADUCM350AUDZ support real-time impedance spectroscopy?

Yes, the EV-ADUCM350AUDZ fully supports real-time impedance spectroscopy via the ADuCM350's on-chip DFT-based impedance measurement engine. It achieves 0.17% magnitude and 0.08° phase precision at 20 kHz using a 181 Ω reference resistor, with excitation amplitude programmable from 1 mVRMS to 9 mVRMS. The board exposes all necessary calibration (RCAL) and sensor interface terminals, and includes example software for frequency-swept measurements across 1–100 kHz with automatic gain/phase extraction and USB data export.

Can the EV-ADUCM350AUDZ operate from a coin cell battery?

Yes, the EV-ADUCM350AUDZ is explicitly designed for coin-cell operation using a standard CR2032 battery (2.5–3.6 V). Its power architecture mirrors the ADuCM350's triple-LDO system-high-performance (HP), low-power (LP), and digital-enabling ultra-low hibernate current (<1 µA) and dynamic clock/power gating. The board includes battery voltage monitoring, trickle-charge circuitry for supercapacitor backup (VBACK), and seamless transition between battery and USB power without reset or configuration change.

What interfaces are accessible on the EV-ADUCM350AUDZ for connecting external sensors?

The EV-ADUCM350AUDZ provides direct access to all ADuCM350 AFE signal paths via labeled test points and 0.1"-spaced headers: 8 current-input (IINx) channels, 4 voltage-input (VINx) channels, 2 excitation outputs (Tx/Rx), RCAL calibration terminal, and configurable switch matrix nodes (Px/Nx/Dx/TRx). It also exposes the ultralow-leakage (<350 pA) switch matrix control lines and TIA feedback resistor pads-allowing precise sensor biasing, guard drive, and multi-electrode configurations required for clinical-grade biosensors.

Is USB communication on the EV-ADUCM350AUDZ compatible with standard host drivers?

Yes, the EV-ADUCM350AUDZ implements a CDC ACM (Abstract Control Model) USB device class, presenting as a virtual COM port on Windows, Linux, and macOS without requiring custom drivers. It supports full-speed (12 Mbps) USB 2.0 communication with integrated PHY, and ships with firmware that streams time-stamped ADC samples, impedance results, and sensor metadata over USB in real time. Host-side Python and MATLAB examples are provided in the official ADuCM350 SDK to parse and visualize data from the EV-ADUCM350AUDZ.