Analog Devices Inc./Maxim Integrated MAX30105ACCEVKIT#

Overview

MAX30105ACCEVKIT# from Maxim Integrated is an evaluation kit for the MAX30105 high-sensitivity optical particle sensor IC, designed to accelerate smoke detection system development. It provides a fully assembled, tested hardware platform with onboard MAX30105 sensor, I²C interface, LED drivers (red/IR/green), 18-bit ADC, ambient light cancellation, and integrated cover glass - enabling rapid validation of fire alarm, building automation, and wearable smoke sensing applications.

For engineers reviewing the MAX30105ACCEVKIT# datasheet, MAX30105ACCEVKIT# pinout, MAX30105ACCEVKIT# application, or MAX30105ACCEVKIT# equivalent, this kit delivers immediate access to calibrated optical performance, FIFO-based data streaming, programmable LED current (0–50mA), shutdown current as low as 0.7µA, and full register-level control over particle-sensing modes, proximity detection, and temperature compensation.

Technical Context

The MAX30105ACCEVKIT# hosts the MAX30105 optical sensor IC in a 14-pin OESIP package and exposes all critical signals - including SCL/SDA, INT, VDD (1.8V), VLED+ (5.0V), PGND, GND, and LED driver outputs (R_DRV, IR_DRV, G_DRV). It implements the complete signal chain: ambient light cancellation with Track/Hold circuitry, continuous-time sigma-delta ADC (10.24MHz clock, 18-bit resolution), and 32-deep FIFO for burst-mode data capture.

Hardware design includes bypass capacitors on VDD and VLED+, pull-up resistors on SDA/SCL/INT, and mechanical mounting pads for N.C. pins (1, 8, 14). The kit supports all operational modes - particle-sensing (50–3200 sps), proximity detection (IR pilot mode), and temperature monitoring - with register-accessible configuration of LED pulse width (69–411µs), ADC full-scale range (2–16µA), and ambient rejection up to 200µA.

Key Specifications

Availability

MAX30105ACCEVKIT# is available at Aetrix Electronics and suitable for fire alarm certification testing, building automation smoke detector prototyping, and wearable device integration requiring stable component supply and validated optical performance.

Supply support for MAX30105ACCEVKIT# 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

Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in precision analog, mixed-signal, and power management ICs for industrial, medical, and consumer applications.

The MAX30105 product line was engineered specifically for compact, low-power optical particle detection - targeting smoke sensing in space-constrained environments where ambient light rejection, motion artifact resilience, and multi-wavelength discrimination are critical.

FAQ

What is the primary function of the MAX30105ACCEVKIT#?

The MAX30105ACCEVKIT# is an evaluation kit for the MAX30105 optical sensor IC, providing a ready-to-use hardware platform to evaluate and develop smoke detection systems. It enables immediate testing of the MAX30105's particle-sensing capabilities - including red/IR/green LED excitation, ambient light cancellation, 18-bit ADC conversion, and FIFO-based data streaming - without custom PCB design.

Does the MAX30105ACCEVKIT# include firmware or software support?

The MAX30105ACCEVKIT# itself is a hardware evaluation board and does not include embedded firmware. However, Maxim Integrated provides reference Arduino and Python libraries, register-level documentation, and application notes for the MAX30105 IC - all directly applicable to the MAX30105ACCEVKIT# - enabling rapid host MCU integration via I²C.

Can the MAX30105ACCEVKIT# be used for heart-rate or SpO₂ measurement?

Yes - the MAX30105ACCEVKIT# supports heart-rate and SpO₂ measurement through its multi-wavelength capability (red + IR LEDs) and programmable sampling (50–3200 sps). Its 18-bit ADC, high SNR (>88dB), and ambient rejection make it suitable for reflective PPG applications, though clinical validation remains the responsibility of the end-system designer.

What power supplies are required to operate the MAX30105ACCEVKIT#?

The MAX30105ACCEVKIT# requires two independent power supplies: 1.8V for the analog core (VDD) and 5.0V for the LED drivers (VLED+). Both rails must be externally supplied; the board includes dedicated test points and decoupling capacitors for stable operation. Current draw ranges from 0.7µA (shutdown) to ~1.1mA (active particle-sensing mode).

How does the proximity detection feature work on the MAX30105ACCEVKIT#?

The MAX30105ACCEVKIT# leverages the MAX30105's built-in proximity mode: the IR LED emits a pilot pulse, and the photodiode measures reflected intensity. When the IR ADC count exceeds the threshold set in PROX_INT_THRESH, the INT pin asserts, signaling object presence. This triggers automatic transition to full particle-sensing mode - a hardware-assisted wake-up mechanism ideal for battery-powered smoke detectors.