Analog Devices Inc./Maxim Integrated MAX11210EVKIT+

Overview

MAX11210EVKIT+ from Maxim Integrated is an evaluation kit designed to accelerate development with the MAX11210 ultra-low-power, 24-bit delta-sigma ADC - a single-channel, SPI-configurable converter featuring four GPIOs, programmable gain (1–16), and >100dB 50Hz/60Hz line-noise rejection. It supports sensor measurement in industrial 4–20mA loops, portable instrumentation, and battery-powered weigh scales.

For engineers reviewing the MAX11210EVKIT+ datasheet, MAX11210EVKIT+ pinout, MAX11210EVKIT+ application, or MAX11210EVKIT+ equivalent, this kit provides full hardware access to the MAX11210's analog inputs (AINP/AINN), reference interface (REFP/REFN), SPI control (CS/SCLK/DIN/RDY/DOUT), external clock input (CLK), and GPIO1–GPIO4 - enabling rapid validation of low-power, high-dynamic-range data acquisition under real-world signal conditions.

Technical Context

The MAX11210EVKIT+ implements the MAX11210 ADC in a fully assembled, test-ready 16-pin QSOP footprint with on-board voltage regulation (2.7V–3.6V AVDD, 1.7V–3.6V DVDD), configurable reference options (internal or external), and jumper-selectable input buffering. It supports both continuous and single-cycle conversion modes, with data rates from 0.833sps to 480sps via software-controlled RATE and LINEF bits.

Hardware-level features include direct access to all 16 pins of the MAX11210, onboard 2.4576MHz/2.048MHz oscillator selection, GPIO-driven multiplexer control demonstration circuitry (e.g., MAX313 quad SPST switch), and calibrated test points for AINP/AINN, REFP/REFN, and digital I/O signals - enabling precise characterization of ENOB (24.0 bits at 5sps), noise (570nVRMS at 10sps), and INL (±10ppmFSR max).

Key Specifications

Availability

MAX11210EVKIT+ is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable instrumentation design, and battery-powered precision weighing systems requiring stable component supply and immediate hardware validation capability.

Supply support for MAX11210EVKIT+ 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 communications applications.

The MAX11200/MAX11210 product line was engineered specifically for ultra-low-power, high-dynamic-range data acquisition in constrained-energy environments - targeting 4–20mA loop-powered sensors, handheld meters, and IoT edge nodes where resolution, noise immunity, and sleep current are critical.

FAQ

What is the primary function of the MAX11210EVKIT+?

The MAX11210EVKIT+ is an evaluation kit that provides a complete, ready-to-use platform for prototyping and validating the MAX11210 24-bit delta-sigma ADC. It includes all necessary circuitry - regulated supplies, reference options, GPIO interface, and test points - to evaluate key performance metrics including ENOB, line-noise rejection, and low-power operation without custom PCB design. The MAX11210EVKIT+ enables immediate functional verification of the MAX11210 in real-world sensor signal chains.

Does the MAX11210EVKIT+ support both MAX11200 and MAX11210 devices?

No - the MAX11210EVKIT+ is specifically configured and documented for use with the MAX11210, which includes programmable digital gain (1–16) and enhanced GPIO functionality not present in the MAX11200. While the physical socket accepts both devices, full feature validation (e.g., gain configuration, associated register maps) requires the MAX11210. Using the MAX11200 on the MAX11210EVKIT+ will limit access to gain control and may require firmware adjustments.

How does the MAX11210EVKIT+ enable 50Hz/60Hz line-noise rejection testing?

The MAX11210EVKIT+ supports 50Hz/60Hz rejection validation through its onboard oscillator selection (2.048MHz for 50Hz, 2.4576MHz for 60Hz) and software-configurable LINEF bit in the CTRL1 register. When used with supported data rates (1–15sps), the internal SINC4 filter delivers >100dB rejection - verified via the kit's accessible AINP/AINN and REFP/REFN test points and compatible oscilloscope/data logger connections. The MAX11210EVKIT+ also allows external 2.25275MHz clock injection at the CLK pin for simultaneous 50Hz/60Hz suppression.

Can the MAX11210EVKIT+ be used for battery-life estimation in portable designs?

Yes - the MAX11210EVKIT+ provides direct measurement access to AVDD and DVDD supply currents across operating modes. With documented sleep current <0.4µA and active current <300µA, users can correlate measured current draw against configured data rates, buffer states, and GPIO activity to model battery runtime. The MAX11210EVKIT+'s low-quiescent LDOs and jumper-selectable power domains allow accurate isolation of ADC-only consumption - essential for estimating years-of-operation from CR2032 or AA cells.

What GPIO functionality is demonstrated on the MAX11210EVKIT+?

The MAX11210EVKIT+ demonstrates all four GPIOs (GPIO1–GPIO4) as controllable digital outputs driving a reference MAX313 quad SPST analog switch - illustrating break-before-make multiplexing of up to four single-ended sensor inputs. Each GPIO is individually accessible via headers and controlled via SPI writes to the CTRL2 register. This implementation validates timing-critical GPIO sequencing, load-driving capability (1mA sink/source), and integration with external analog signal routing - directly applicable to multi-channel sensor systems using the MAX11210EVKIT+.