Analog Devices Inc./Maxim Integrated MAX19506EVKIT+

Overview

MAX19506EVKIT+ from Maxim Integrated is a fully assembled and tested evaluation kit designed to characterize the MAX19506ETM+, an 8-bit, 100 Msps dual-channel analog-to-digital converter (ADC) in 48-pin TQFN package. It supports single-ended analog input conversion to differential signals via on-board transformers (T1–T4), provides SPI-based register configuration via USB interface, and operates from a single 3.6V nominal supply with on-board regulation for AVDD, OVDD, and clock circuitry.

For engineers reviewing the MAX19506EVKIT+ datasheet, MAX19506EVKIT+ pinout, MAX19506EVKIT+ application, or MAX19506EVKIT+ equivalent, this kit enables rapid validation of high-speed ADC performance-including SNR, SFDR, and timing jitter-in RF sampling, communications test equipment, and wideband data acquisition systems using Windows 7/10 GUI software and logic analyzer capture.

Technical Context

The MAX19506EVKIT+ implements a four-layer PCB layout with segregated analog, digital, clock, and buffer power planes to minimize noise coupling. It uses 100Ω matched differential microstrip traces for analog and clock inputs, and 50Ω microstrip lines for all digital outputs (D0A–D7A, D0B–D7B, DCLKA/B, DORA/B) routed to 48-pin header J5.

On-board circuitry includes dual MAX8902A LDOs (U14/U15) for user-selectable AVDD/OVDD voltages (1.8V/2.5V/3.0V/3.3V), ultra-low-noise linear regulator (U2), FTDI-based USB-to-SPI bridge (U3), EEPROM (U9), and dual 16-bit CMOS bus transceivers (U11/U12) for driving logic analyzer loads. Clock conditioning supports both differential and single-ended modes with adjustable duty cycle via potentiometer R46.

Key Specifications

Availability

MAX19506EVKIT+ is available at Aetrix Electronics and suitable for RF front-end prototyping, high-speed data acquisition system development, and ADC performance benchmarking requiring stable component supply and full technical documentation support.

Supply support for MAX19506EVKIT+ 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 high-performance analog, mixed-signal, and RF ICs for industrial, communications, and consumer applications.

The MAX19506EVKIT+ belongs to Maxim's high-speed ADC evaluation platform family, engineered specifically to accelerate design-in and characterization of dual-channel, pipeline-based ADCs used in wideband receivers, spectrum analyzers, and digital oscilloscopes.

FAQ

What is the primary function of the MAX19506EVKIT+?

The MAX19506EVKIT+ is a dedicated evaluation platform for the MAX19506ETM+ 8-bit, 100 Msps dual-channel ADC. It provides complete signal conditioning, power regulation, USB-based SPI control, and parallel digital output access-enabling engineers to measure AC performance metrics (SNR, ENOB, SFDR) and validate timing behavior without custom board design. The MAX19506EVKIT+ includes all passive components, transformers, regulators, and firmware required for immediate lab use.

Which ADC variants does the MAX19506EVKIT+ support?

The MAX19506EVKIT+ is hardware-compatible with the entire MAX19505–MAX19507 and MAX19515–MAX19517 family, but it is specifically configured and validated for the MAX19506ETM+ (8-bit, 100 Msps). Software (MAX195xxGUI.exe) allows selection between supported devices, automatically adjusting register maps and timing controls. Physical layout and component values are optimized for the 100 Msps variant's signal integrity and power delivery requirements.

How is analog input handled on the MAX19506EVKIT+?

The MAX19506EVKIT+ accepts single-ended analog input via SMA connector VINA (and VINB for second channel), then converts it to differential signals using four ADT1-1WT+ broadband transformers (T1–T4). This eliminates need for external baluns. Input bandwidth spans 1MHz to 400MHz, and on-board 100Ω differential microstrip routing ensures minimal skew and optimal dynamic performance. Users can also probe differential inputs directly at headers J2/J3.

What power supply requirements does the MAX19506EVKIT+ have?

The MAX19506EVKIT+ operates from a single 3.6V nominal DC supply (VSUPPLY), with absolute maximum rating of 5V. On-board MAX8902A LDOs (U14/U15) generate user-selectable AVDD and OVDD/VLOGIC voltages (1.8V/2.5V/3.0V/3.3V) via jumper configurations (J1/J8/J9/J10). Minimum input voltage depends on selected output voltage - e.g., 2.1V for 1.8V AVDD. Banana jacks provide direct access to GND and VSUPPLY for bench testing.

Can the MAX19506EVKIT+ be used with logic analyzers?

Yes - the MAX19506EVKIT+ exposes all digital outputs (D0A–D7A, D0B–D7B, DCLKA/B, DORA/B) on 48-pin header J5, compatible with standard logic analyzers like the IO3232A. Pin mapping is documented in Table 1 of the EV kit guide. Output drivers U11/U12 provide robust CMOS-level signaling capable of driving capacitive loads typical of logic analyzer inputs. Data capture is synchronized using DCLKA/B, with DORA/B indicating overrange conditions.