Analog Devices Inc./Maxim Integrated MAX11040KEVKIT#

Overview

MAX11040KEVKIT# from Maxim Integrated is an evaluation kit for the MAX11040K 24-bit, 4-channel, simultaneous-sampling sigma-delta ADC - designed to accelerate development of high-accuracy energy measurement and power-monitoring systems. It supports cascading up to eight devices (32 channels), offers programmable sampling phase (0–333µs in 1.33µs steps), delivers 117dB SNR at 1ksps, and operates over –40°C to +105°C with ±6V input overvoltage protection.

For engineers reviewing the MAX11040KEVKIT# datasheet, MAX11040KEVKIT# pinout, MAX11040KEVKIT# application, or MAX11040KEVKIT# equivalent, this kit enables rapid validation of synchronized multi-channel acquisition, phase-shift compensation across transformer-coupled inputs, and SPI/QSPI-compatible data streaming at output rates from 0.25ksps to 64ksps - all using a single 3.0V–3.6V supply.

Technical Context

The MAX11040KEVKIT# provides full hardware and software access to the MAX11040K's four fully differential analog inputs, internal 2.5V reference, crystal oscillator interface (XIN/XOUT), and cascaded serial interface (CASCIN/CASCOUT). It implements the complete signal chain including anti-alias filtering, reference decoupling (1µF per REFx), and digital I/O level translation compatible with 3.3V microcontrollers.

It exposes all critical control signals - SYNC for inter-device timing alignment, DRDYIN/DRDYOUT for synchronized data capture, FAULT/OVRFLW for real-time fault monitoring, and configurable SCLK/DIN/DOUT/CS supporting SPI mode 3 (CPOL=1, CPHA=0) - enabling deterministic, low-latency (374µs latency at 16ksps) acquisition in multiphase power systems.

Key Specifications

Availability

MAX11040KEVKIT# is available at Aetrix Electronics and suitable for power-protection relay equipment, multiphase power systems, and industrial data-acquisition systems requiring stable component supply and fast time-to-validation.

Supply support for MAX11040KEVKIT# 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 high-reliability ICs for industrial, automotive, and communications applications.

The MAX11040K product line is engineered for high-accuracy energy metering and power quality monitoring - delivering simultaneous sampling, phase-shift compensation, and cascaded synchronization to meet IEC 62053 and IEEE 1459 standards.

FAQ

What is the primary function of the MAX11040KEVKIT#?

The MAX11040KEVKIT# is an evaluation kit designed exclusively for the MAX11040K 24-bit, 4-channel simultaneous-sampling sigma-delta ADC. It provides a fully populated PCB with reference circuitry - including decoupling capacitors, crystal oscillator interface, and level-translated digital I/O - to enable immediate functional validation, firmware integration, and performance characterization of the MAX11040K in real-world power-monitoring applications.

Does the MAX11040KEVKIT# support daisy-chaining multiple MAX11040K devices?

Yes, the MAX11040KEVKIT# exposes CASCIN and CASCOUT pins and includes proper termination and routing to support daisy-chaining up to eight MAX11040K devices. This enables synchronized sampling across 32 analog input channels using a single SPI interface and chip-select signal - a core capability validated directly on the MAX11040KEVKIT# board.

Can the MAX11040KEVKIT# operate with both internal and external reference configurations?

Yes, the MAX11040KEVKIT# supports both internal and external reference modes for the MAX11040K. The board provides dedicated REFIO routing and bypass capacitor footprints (1µF + 0.01µF) to accommodate either the internal 2.5V reference or an external 2.3V–2.7V reference source - allowing users to evaluate noise, drift, and accuracy trade-offs under both configurations.

What clock sources are supported by the MAX11040KEVKIT# for the MAX11040K?

The MAX11040KEVKIT# supports both crystal-based and external clock sources for the MAX11040K. It includes solder pads and matching network for a 24.576MHz fundamental-mode crystal between XIN and XOUT, and also allows direct injection of an external CMOS clock into XIN while leaving XOUT unconnected - enabling flexible timing validation across different system clock architectures.

How does the MAX11040KEVKIT# assist in phase-shift compensation testing?

The MAX11040KEVKIT# enables full validation of the MAX11040K's programmable sampling-phase feature (0–333µs in 1.33µs steps) via register access through its included software tools. Engineers can inject controlled phase offsets - such as those introduced by current transformers or anti-alias filters - then adjust individual channel delays to achieve precise inter-channel alignment, directly verifying compliance with IEC 61850-9-2 and similar standards.