Analog Devices Inc./Maxim Integrated MAX11214EVKIT#

Overview

MAX11214EVKIT# from Maxim Integrated is an evaluation kit for the MAX11214 - a 24-bit delta-sigma ADC with integrated programmable gain amplifier (PGA), delivering 140dB SNR at 5mW, 32ksps max sample rate, and ±1.8V split-supply operation. It supports precision DC/AC measurements in seismic data acquisition, scientific instrumentation, and portable high-accuracy sensor systems.

For engineers reviewing the MAX11214EVKIT# datasheet, MAX11214EVKIT# pinout, MAX11214EVKIT# application, or MAX11214EVKIT# equivalent, this kit enables rapid validation of the MAX11214's ultra-low-noise PGA, flexible digital filtering (SINC/FIR/IIR), system-level calibration, and high-impedance signal interface capabilities under real-world analog input conditions.

Technical Context

The MAX11214EVKIT# provides full hardware and firmware support for evaluating the MAX11214's dual-domain architecture: a 6.5nV/√Hz PGA with 1×–128× gain and a configurable delta-sigma modulator followed by cascaded SINC + FIR + IIR filters. It implements both continuous and single-cycle conversion modes with programmable highpass filtering and synchronization via SYNC pin or SPI command.

Kit-level design includes on-board reference (2.5V), buffered analog inputs, GPIO-accessible control lines (RSTB, SYNC, RDYB), and USB-to-SPI bridge for PC-based configuration and data capture. All MAX11214 register access, calibration sequences (self/system offset/gain), and MODBITS mode testing are supported through included software.

Key Specifications

Availability

MAX11214EVKIT# is available at Aetrix Electronics and suitable for seismic data acquisition, medical equipment prototyping, scientific instrumentation development, and high-precision portable sensor validation requiring stable component supply and full-featured evaluation infrastructure.

Supply support for MAX11214EVKIT# 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 demanding industrial, medical, and instrumentation applications.

The MAX11214EVKIT# belongs to Maxim's high-resolution data acquisition evaluation platform family, engineered specifically to accelerate development of ultra-low-noise, wide-dynamic-range measurement systems using their delta-sigma ADC portfolio.

FAQ

What is the primary function of the MAX11214EVKIT#?

The MAX11214EVKIT# is a fully assembled and tested evaluation platform for the MAX11214 24-bit delta-sigma ADC. It enables engineers to validate key performance metrics-including 140dB SNR, 4ppm INL, and 6.5nV/√Hz PGA noise-under real-world analog input conditions, using included software for register configuration, calibration, and data capture.

Does the MAX11214EVKIT# support both single-ended and differential reference configurations?

Yes, the MAX11214EVKIT# supports differential reference inputs (REFP/REFN) as required by the MAX11214, with on-board 2.5V precision reference and routing for external reference injection. It does not support single-ended reference operation, as the MAX11214 architecture mandates differential reference for guaranteed INL and SNR performance.

Can the MAX11214EVKIT# be used to evaluate the MAX11214's MODBITS mode?

Yes, the MAX11214EVKIT# provides direct access to all pins required for MODBITS mode operation-including DOUT/MB0, GPIO3/MSYNC, GPIO1/MB1, and RDYB/ICLK-via test points and headers. The included evaluation software supports MODBITS initialization, data readout, and timing verification per Figure 22 in the MAX11214 datasheet.

What software tools are provided with the MAX11214EVKIT#?

The MAX11214EVKIT# ships with Maxim's GUI-based EV Kit Software, which supports full register access (Control 1–5, Status, Data, Calibration registers), real-time waveform plotting, automated calibration sequencing (self/system offset/gain), FIR/SINC filter coefficient adjustment, and export of captured ADC data in CSV format for post-processing.

Is external clocking supported on the MAX11214EVKIT#?

Yes, the MAX11214EVKIT# includes a dedicated CLK input header compatible with external CMOS clocks up to 4.096MHz, matching the MAX11214's specified clock range. On-board crystal oscillator (4.096MHz) is also provided for standalone operation, and jumper-selectable clock source ensures flexibility during system-level timing validation.