Analog Devices Inc. AD9643-210EBZ

Overview

AD9643-210EBZ from Analog Devices is a high-speed, dual-channel, 14-bit analog-to-digital converter (ADC) evaluation board designed to fully characterize the AD9643-210 (210 MSPS) in real-world signal chain environments. It supports transformer-coupled or amplifier-driven analog inputs, external or AD9523-based clocking, SPI-controlled configuration, and LDO-regulated 1.8 V/3.3 V power delivery for AVDD, DVDD, and DRVDD rails.

For engineers reviewing the AD9643-210EBZ datasheet, AD9643-210EBZ pinout, AD9643-210EBZ application, or AD9643-210EBZ equivalent, this page delivers verified hardware architecture, jumper-configurable signal paths (balun vs. ADL5202 amplifier input), clock routing options (LVPECL via AD9523 or single-ended sine), FPGA-based data capture integration with HSC-ADC-EVALCZ, and VisualAnalog/SPI Controller software interoperability - all critical for RF receiver, communications test, and wideband digitizer design validation.

Technical Context

The AD9643-210EBZ implements a complete reference platform for the AD9643-210 ADC, featuring dual 50 Ω balun-coupled analog inputs (J301/J303), configurable clock injection (J506 for external source or AD9523 U501 for LVPECL), and on-board LDO regulation delivering stable 1.8 V (1 A) and 3.3 V (1 A) supplies. Its PCB layout follows high-speed ADC grounding and routing best practices documented in schematics Figures 23–34.

Signal integrity is maintained via low-jitter clock conditioning (CR503 clipping diodes, T503 1:1 transformer), optional ADL5202 gain control path (U401), and differential output routing to P601/P602 for connection to the HSC-ADC-EVALCZ FPGA capture board. Power sequencing and domain isolation are enforced through header jumpers (P103–P110) enabling independent biasing of analog/digital sections.

Key Specifications

Availability

AD9643-210EBZ is available at Aetrix Electronics and suitable for RF receiver development, wireless infrastructure testing, and high-speed data acquisition systems requiring stable component supply, traceable evaluation hardware, and full software toolchain compatibility.

Supply support for AD9643-210EBZ 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

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with deep expertise in precision conversion, RF, and signal chain solutions.

The AD9643-210EBZ belongs to Analog Devices' high-speed ADC evaluation platform family, engineered specifically to accelerate prototyping and performance validation of wideband receivers, spectrum analyzers, and communications test equipment.

FAQ

What is the primary function of the AD9643-210EBZ evaluation board?

The AD9643-210EBZ evaluation board is a complete hardware and software reference platform for evaluating the AD9643-210 dual 14-bit, 210 MSPS analog-to-digital converter. It provides all necessary support circuitry-including balun-coupled analog inputs, flexible clocking (external or AD9523-based), regulated power delivery, SPI control interface, and differential LVDS output routing-to validate dynamic performance (SNR, SFDR, ENOB) under real-world conditions. The board enables rapid characterization without custom PCB design.

Does the AD9643-210EBZ support both transformer-coupled and amplifier-based analog input drive?

Yes, the AD9643-210EBZ supports both configurations. By default, it uses a double-balun network (T501/T502) optimized for wideband 50 Ω operation with 2 V p-p full-scale input. Alternatively, the ADL5202 digitally controlled variable-gain amplifier (U401) can be enabled by populating R427/R428, allowing programmable gain adjustment for low-level signals. The input path selection is hardware-configurable via unpopulated components and jumpers-no soldering required for basic balun operation.

Which clock sources are compatible with the AD9643-210EBZ?

The AD9643-210EBZ accepts two primary clock configurations: (1) a single-ended 50 Ω-terminated sine wave (up to ~13 dBm, ~2.8 V p-p) injected at J506, or (2) a differential LVPECL clock from the on-board AD9523 clock generator (U501), enabled by installing 0 Ω resistors at R541/R542 and configuring the AD9523 via SPI. Both paths feed the AD9643-210's dedicated clock inputs with minimal added jitter, supporting precise sampling timing validation.

How is data captured and analyzed from the AD9643-210EBZ?

Data capture from the AD9643-210EBZ requires the HSC-ADC-EVALCZ FPGA-based data capture board, which connects via P601/P602 differential LVDS outputs. The captured samples are streamed to a Windows PC running VisualAnalog® software, which provides real-time FFT analysis, SNR/SFDR calculation, histogram plotting, and noise-shaping requantizer (NSR) tuning for the AD6643 variant. SPI Controller software handles low-level register configuration of both the AD9643-210 and AD9523.

Can the AD9643-210EBZ be powered using external bench supplies instead of the included wall adapter?

Yes, the AD9643-210EBZ supports external bench power. To use external supplies, remove jumpers from P103, P104, P105, P107, and P108 to disconnect on-board LDO outputs, then connect 1.8 V @ 1 A to P202 (for DUT_AVDD/DRVDD) and 3.3 V @ 1 A to P203 (for 3P3V_ANALOG and ADL5202 support). This enables independent voltage and sequencing control-critical for system-level power integrity testing and low-noise analog domain optimization.