Analog Devices Inc./Maxim Integrated MAX19516EVKIT+

Overview

MAX19516EVKIT+ from Maxim Integrated is a fully assembled and tested evaluation kit designed to characterize the MAX19516ETM+, a 10-bit, 100 Msps dual-channel analog-to-digital converter (ADC). It supports single-ended analog input conversion to differential signals via on-board transformers (T1–T4), provides SPI-based register configuration through USB interface, and operates from a single 3.6V nominal supply with on-board LDO regulation for AVDD and OVDD.

For engineers reviewing the MAX19516EVKIT+ datasheet, MAX19516EVKIT+ pinout, MAX19516EVKIT+ application, or MAX19516EVKIT+ equivalent, this kit enables rapid validation of high-speed ADC performance in RF sampling, communications test equipment, and digitizer systems - with Windows 7/10 GUI software, logic analyzer-ready digital outputs (J5 header), and configurable clock/data timing controls.

Technical Context

The MAX19516EVKIT+ implements a four-layer PCB layout with separate analog, digital, clock, and buffer power planes to minimize noise coupling. It uses 100Ω differential microstrip traces for analog and clock inputs (matched within thousandths of an inch) and 50Ω microstrip lines for all digital outputs, ensuring signal integrity at up to 400MHz input frequency.

Hardware features include on-board single-ended-to-differential transformation (via ADT1-1WT+ transformers), adjustable clock duty cycle control (R46 potentiometer), user-selectable AVDD/OVDD voltages (1.8V/2.5V/3.0V/3.3V via jumpers J1/J8/J9/J10), and dual CMOS-compatible 10-bit parallel outputs with DCLKA/B and DORA/B bits accessible at 48-pin header J5.

Key Specifications

Availability

MAX19516EVKIT+ is available at Aetrix Electronics and suitable for RF sampling systems, communications test equipment, and high-speed digitizer development requiring stable component supply, full evaluation readiness, and production-intent layout fidelity.

Supply support for MAX19516EVKIT+ 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 high-speed data-conversion solutions for demanding industrial, communications, and test & measurement applications.

The MAX195xx evaluation kit family supports the MAX19505–MAX19507 and MAX19515–MAX19517 dual-channel ADCs, targeting high-fidelity RF and IF sampling applications where layout-controlled signal integrity and flexible configuration are critical.

FAQ

What is the primary function of the MAX19516EVKIT+?

The MAX19516EVKIT+ is a fully assembled evaluation platform for the MAX19516ETM+ 10-bit, 100 Msps dual-channel ADC. It enables engineers to validate dynamic performance (SNR, SFDR), configure registers via GUI or parallel mode, and interface with logic analyzers or FPGAs using its J5 48-pin header. The MAX19516EVKIT+ includes on-board signal conditioning, power regulation, and Windows-compatible software - eliminating prototyping effort for high-speed ADC integration.

Which ADC does the MAX19516EVKIT+ evaluate?

The MAX19516EVKIT+ evaluates the MAX19516ETM+, a 10-bit, dual-channel, 100 Msps analog-to-digital converter in a 48-pin TQFN-EP package. It is part of the MAX195xx family that also includes 8-bit variants (MAX19505–MAX19507) and higher-speed 10-bit variants (MAX19515/MAX19517). The MAX19516EVKIT+ hardware and software are specifically calibrated and routed for the MAX19516ETM+'s timing, power, and pinout requirements.

Does the MAX19516EVKIT+ support both differential and single-ended clock inputs?

Yes, the MAX19516EVKIT+ supports both differential and single-ended clock inputs. In differential mode, the clock is applied directly to CLK+/CLK− SMA connectors. In single-ended mode, the clock signal passes through buffer U10 and is shaped using potentiometer R46 for duty-cycle adjustment. Configuration requires resistor rework (R47–R49 removed; R50/R51/R52 installed), as documented in the MAX19516EVKIT+ user guide - a capability confirmed in the official schematic and quick-start procedure.

How is analog input handled on the MAX19516EVKIT+?

The MAX19516EVKIT+ accepts single-ended analog input (VINA/VINB SMA connectors) and converts it to differential signals using four ADT1-1WT+ transformers (T1–T4), matching the differential input requirement of the MAX19516ETM+. This eliminates the need for external baluns. Input bandwidth spans 1MHz to 400MHz, and on-board 100Ω differential microstrip traces ensure minimal skew (<0.001") - verified in the hardware description and schematic (Sheet 1).

Can the MAX19516EVKIT+ operate without a PC?

No - the MAX19516EVKIT+ requires a Windows 7 or 10 PC with two spare USB ports: one for USB-powered operation (via J6 Mini-B connector) and another for optional IO3232A logic analyzer connectivity. The GUI software (MAX195xxGUI.exe) is mandatory for SPI register configuration, output timing control, and power management. While parallel-mode jumpers (JU1–JU3) allow basic feature selection without software, full evaluation - including dynamic testing and real-time parameter updates - depends on the PC-hosted application.