Analog Devices Inc./Maxim Integrated MAX11198EVKIT#

Overview

MAX11198EVKIT# from Maxim Integrated is a fully assembled and tested evaluation kit designed to characterize the MAX11198 - a 16-bit, dual-channel, 2Msps, fully differential, simultaneously sampling SAR ADC with internal reference. It includes a TQFN-EP evaluation board, Windows-compatible GUI software, ZedBoard™ interface via low-pin-count FMC connector, ±6.5V DC-DC converters, on-board MAX44242/MAX44205 input buffers, and MAX6126 voltage reference. It supports resolver/encoder position feedback systems requiring coherent sampling and FFT-based signal integrity analysis.

For engineers reviewing the MAX11198EVKIT# datasheet, MAX11198EVKIT# setup, MAX11198EVKIT# software interface, or MAX11198EVKIT# FMC compatibility, this kit delivers validated hardware-software integration for evaluating simultaneous sampling performance, SNR/SINAD/ENOB at up to 2Msps, coherent FFT analysis, and differential input conditioning using real-world resolver excitation signals (4V–8V, 1kHz–10kHz).

Technical Context

The MAX11198EVKIT# interfaces directly with Xilinx Zynq®-7000 SoC on ZedBoard via FMC, using SPI0 (CNVST, SCLK0, DOUT1, DOUT2) and SPI1 (CSb, SCLK1, DAC_DIN, DAC_DOUT) for ADC control and DAC feedback. It implements dual independent analog front-ends with MAX44242 input buffers and MAX44205 fully differential amplifiers, each with configurable single-ended or differential input paths via jumpers J2–J3 and selectable REFIN/2 biasing via J13–J14.

Coherent sampling is enabled through SYNC_IN (100MHz SMA) and SYNC_OUT (10MHz SMA), synchronized to external function generators or resolver exciters. Power is derived either from ZedBoard's +12V rail (J23 closed) or external supply, regulated by MAX17552 ±6.5V converters and MAX15006B +5V LDO, supporting AVDD/OVDD flexibility per jumper J12/J15.

Key Specifications

Availability

MAX11198EVKIT# is available at Aetrix Electronics and suitable for resolver-based motor control, high-precision industrial encoder interfaces, servo drive feedback validation, and SAR ADC characterization requiring simultaneous dual-channel acquisition and coherent FFT analysis.

Supply support for MAX11198EVKIT# 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, automotive, and communications applications.

The MAX11198EVKIT# belongs to Maxim's high-performance data acquisition evaluation platform family, engineered specifically to accelerate development of resolver-to-digital converter (RDC) subsystems and absolute position sensing systems using simultaneous-sampling SAR ADCs.

FAQ

What hardware is required to operate the MAX11198EVKIT#?

The MAX11198EVKIT# requires a ZedBoard FPGA platform (not included), a Windows PC with Ethernet port (XP/7/8), and optionally a function generator or resolver for analog stimulus. Power is supplied via ZedBoard's +12V or external DC source. The kit ships with SD card firmware (Boot.bin), GUI installer (MAX11198EVKitSetupV1.0.exe), and pre-installed MAX11198ATE+ in 16-pin TQFN-EP package.

Does the MAX11198EVKIT# support standalone operation without ZedBoard?

No - the MAX11198EVKIT# is not a standalone instrument. It relies on ZedBoard's Zynq-7000 SoC for SPI communication, clock generation, and data streaming. The FMC interface is mandatory; user-supplied SPI is possible only by disconnecting from ZedBoard and wiring to J17 (SCLK, CNVST, DOUT1, DOUT2), but full GUI functionality and coherent sampling require ZedBoard integration.

How does the MAX11198EVKIT# enable coherent sampling?

The MAX11198EVKIT# enables coherent sampling via SYNC_IN (100MHz SMA) and SYNC_OUT (10MHz SMA) connectors synchronized to an external low-jitter clock and function generator. The GUI calculates required master clock frequency based on input signal frequency and sample count, ensuring integer-cycle capture for accurate FFT analysis - critical for resolver angle error measurement and harmonic distortion assessment.

What are the supported reference voltage configurations for the MAX11198EVKIT#?

The MAX11198EVKIT# supports internal 2.5V reference (U5) or external 2.5V–4.75V reference applied to REFIN. Jumper J13 selects between external reference or internal REFIN/2 generation; J14 configures MAX6126A41+ to output 2.048V for differential buffer biasing. Reference selection must match GUI settings to avoid gain/offset errors in captured data.

Can the MAX11198EVKIT# evaluate single-ended input signals?

Yes - jumper settings J2 (Channel 1) and J3 (Channel 2) allow configuration for single-ended input referenced to GND (shunt position 1–2) instead of default differential mode (open). Input buffers remain active, and software-calibrated offset correction applies. However, common-mode rejection and noise immunity are reduced compared to fully differential operation, which is the intended use case for resolver/cosine-sine signal pairs.