Analog Devices Inc./Maxim Integrated MAX11200EVKIT+

Overview

MAX11200EVKIT+ from Maxim Integrated is an evaluation kit for the MAX11200 ultra-low-power, 24-bit delta-sigma ADC - designed to validate high-accuracy sensor signal acquisition in battery-powered industrial instrumentation. It supports single-channel differential analog input (AINP/AINN), internal 2.4576MHz/2.048MHz oscillator, and SPI-configurable data rates from 0.833sps to 480sps with >100dB 50Hz/60Hz line-noise rejection.

For engineers reviewing the MAX11200EVKIT+ datasheet, MAX11200EVKIT+ pinout, MAX11200EVKIT+ application, or MAX11200EVKIT+ equivalent, this kit enables rapid characterization of ultra-low-power ADC performance in 4–20mA loop sensors, portable weigh scales, and precision temperature/pressure measurement systems under real-world supply, noise, and layout conditions.

Technical Context

The MAX11200EVKIT+ provides full hardware access to the MAX11200 ADC's 16-pin QSOP interface, including all GPIOs (GPIO1–GPIO4), reference inputs (REFP/REFN), analog inputs (AINP/AINN), and SPI signals (CS, DIN, SCLK, RDY/DOUT). It integrates on-board voltage regulation (2.7V–3.6V AVDD, 1.7V–3.6V DVDD), configurable external clock input (CLK), and jumper-selectable unipolar/bipolar input ranges.

Designed for direct connection to high-impedance transducers, the kit supports optional signal and reference input buffers, enabling use with thermistors or strain gauges without dynamic range loss. Its SINC4 digital filter delivers verified 144dB normal-mode 50Hz/60Hz rejection at ≤15sps - confirmed via factory-tested timing diagrams and noise spectral plots in the MAX11200/MAX11210 datasheet Rev 2.

Key Specifications

Availability

MAX11200EVKIT+ is available at Aetrix Electronics and suitable for precision sensor evaluation, portable instrumentation prototyping, and 4–20mA loop interface development requiring stable component supply and traceable evaluation hardware.

Supply support for MAX11200EVKIT+ 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) designs precision analog, mixed-signal, and power management ICs for industrial, medical, and automotive applications - with emphasis on low-power, high-accuracy signal chain solutions.

The MAX11200EVKIT+ belongs to Maxim's ultra-low-power delta-sigma ADC evaluation platform family, engineered specifically to accelerate validation of high-dynamic-range sensor interfaces in energy-constrained industrial and portable systems.

FAQ

What is the primary function of the MAX11200EVKIT+?

The MAX11200EVKIT+ is a fully assembled evaluation kit for the MAX11200 24-bit delta-sigma ADC. It enables engineers to characterize key performance parameters - including noise-free resolution (up to 20.9 bits at 10sps), line-noise rejection (>100dB at 50/60Hz), and ultra-low power consumption (<300µA) - using real-world sensor sources, supply rails, and SPI host controllers before committing to custom PCB design.

Does the MAX11200EVKIT+ support both MAX11200 and MAX11210 devices?

Yes, the MAX11200EVKIT+ is compatible with both the MAX11200 and MAX11210 ADCs. While the MAX11210 adds programmable digital gain (1×–16×), the kit's hardware layout, pinout, and firmware examples support either device without modification - verified by Maxim's official EV kit documentation (19-5332 Rev 2).

Can the MAX11200EVKIT+ operate with external clock sources?

Yes, the MAX11200EVKIT+ provides a dedicated CLK input pin and onboard jumpers to accept external clock frequencies including 2.048MHz, 2.4576MHz, or 2.25275MHz. This allows precise control over data rate and simultaneous 50Hz/60Hz rejection tuning - as specified in the MAX11200/MAX11210 datasheet Tables 1 and 2.

How does the MAX11200EVKIT+ handle reference voltage configuration?

The MAX11200EVKIT+ supports both internal and external reference configurations. It includes solder jumpers to connect the MAX11200's REFP/REFN pins to an onboard 2.5V reference or to an external precision source. The kit also enables independent buffer control for REFP/REFN - critical for maintaining accuracy with high-impedance reference dividers.

Is GPIO functionality accessible on the MAX11200EVKIT+?

Yes, all four GPIO pins (GPIO1–GPIO4) are broken out to test points and header pins on the MAX11200EVKIT+. They are fully controllable via SPI commands and can be configured as inputs or outputs - enabling direct control of external multiplexers (e.g., MAX313) or status indicators during sensor channel scanning, as demonstrated in Figure 3 of the MAX11200/MAX11210 datasheet.