Analog Devices Inc./Maxim Integrated MAX11666EVKIT#

Overview

MAX11666EVKIT# from Maxim Integrated is an evaluation kit designed to accelerate development and validation of the MAX11666 12-bit, dual-channel, 500ksps low-power serial ADC. It provides a complete hardware platform with onboard reference, regulated power supplies, SPI interface, and configurable analog input paths - enabling rapid characterization of DC accuracy (±1 LSB INL), dynamic performance (72 dB SNR), and timing behavior (4 ns aperture delay) in battery-powered data acquisition systems.

For engineers reviewing the MAX11666EVKIT# datasheet, MAX11666EVKIT# pinout, MAX11666EVKIT# application, or MAX11666EVKIT# equivalent, this kit supports hands-on evaluation of the MAX11666's dual single-ended inputs, external reference interface, 2.2V–3.6V supply operation, and SPI/QSPI/MICROWIRE-compatible serial interface under real-world signal chain conditions.

Technical Context

The MAX11666EVKIT# implements a fully functional test environment for the MAX11666 ADC, including precision voltage references (REF02 or internal VDD-derived), low-noise LDOs for AVDD/DVDD/IOVDD rails, and selectable input conditioning (direct, RC-filtered, or op-amp buffered). It supports both continuous and burst conversion modes via jumper-configurable CS and CHSEL control logic.

Hardware design follows Maxim's recommended layout practices: split analog/digital ground planes with single-point AGND-DGND tie, dedicated 10-pin µMAX socket with exposed pad thermal connection, and calibrated trace lengths for SCLK/DOUT to minimize skew and jitter - critical for achieving the MAX11666's specified 15 ps aperture jitter and 72 dB SNR at 250 kHz input.

Key Specifications

Availability

MAX11666EVKIT# is available at Aetrix Electronics and suitable for portable data logging, medical instrumentation, and battery-operated sensor interface applications requiring stable component supply, fast evaluation turnaround, and production-ready signal chain validation.

Supply support for MAX11666EVKIT# 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 high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.

The MAX11666EVKIT# belongs to Maxim's precision data acquisition evaluation platform family, engineered to simplify adoption of ultra-low-power, high-speed SAR ADCs in space-constrained, battery-sensitive designs.

FAQ

What is the primary function of the MAX11666EVKIT#?

The MAX11666EVKIT# is an evaluation kit that enables rapid prototyping and performance verification of the MAX11666 12-bit, dual-channel, 500ksps successive approximation ADC. It provides all necessary circuitry - including regulated power supplies, reference selection, analog input conditioning, and SPI interface - to evaluate the MAX11666 under real-world operating conditions without custom PCB design.

Does the MAX11666EVKIT# support external reference voltage input?

Yes, the MAX11666EVKIT# supports external reference voltage input via the REF pin on the MAX11666 socket. It includes a solder jumper to select between an onboard REF02 2.5V reference or direct connection to an external reference source compliant with the MAX11666's 1V to VDD+0.05V input range.

Can the MAX11666EVKIT# be used to evaluate both AIN1 and AIN2 simultaneously?

Yes, the MAX11666EVKIT# supports independent or simultaneous evaluation of both analog inputs (AIN1 and AIN2) through dedicated SMA connectors and configurable channel selection using the CHSEL pin. The board's routing preserves signal integrity for crosstalk measurement (< –90 dB) and channel-to-channel matching (±0.05 LSB gain, ±0.4 LSB offset).

What digital interface standards does the MAX11666EVKIT# support for communicating with the MAX11666?

The MAX11666EVKIT# supports SPI, QSPI, and MICROWIRE protocols via its 3-wire serial interface (CS, SCLK, DOUT). No external logic or level shifters are needed - the kit accommodates IOVDD from 1.5V to 3.6V, allowing direct connection to microcontrollers operating at 1.8V, 2.5V, or 3.3V logic levels.

Is the MAX11666EVKIT# compatible with the full industrial temperature range of the MAX11666?

Yes, the MAX11666EVKIT# is designed and validated to operate across the full –40°C to +125°C temperature range specified for the MAX11666. Its component selection, thermal layout (including exposed pad grounding), and power delivery architecture ensure reliable evaluation under extended environmental stress conditions.