Analog Devices Inc. AD9650-105EBZ

Overview

AD9650-105EBZ from Analog Devices is a full-featured evaluation board designed specifically for the AD9650-105 16-bit, dual-channel, 105 MSPS analog-to-digital converter. It provides on-board clocking (external oscillator or AD9517), balun/transformer or amplifier input drive options, LDO or switching power supply support, and SPI-based configuration - enabling complete ac performance characterization of the AD9650 in lab and development environments.

For engineers reviewing the AD9650-105EBZ datasheet, AD9650-105EBZ pinout, AD9650-105EBZ application, or AD9650-105EBZ equivalent, this board supports high-fidelity signal capture up to 150 MHz analog input bandwidth, configurable VREF (1.35 V internal), dual-channel CMOS output buffering, and integration with the HSC-ADC-EVALCZ FPGA data capture platform via P902/P903 headers.

Technical Context

The AD9650-105EBZ implements a dedicated hardware interface for the AD9650-105 ADC, featuring a transformer-coupled (T602 balun) or optional AD9517 LVPECL clock path, dual independent analog input channels with selectable drive topologies (balun, AD8375 DVGA on ChA, ADL5562/ADA4937/ADA4938 on ChB), and flexible power delivery using either onboard LDOs or ADP2114 switching regulators.

It supports SPI-controlled configuration of ADC registers, real-time data capture via CMOS outputs routed to HSC-ADC-EVALCZ, and visualized analysis using VisualAnalog software - all while maintaining strict signal integrity through controlled impedance routing, split ground/power planes (Figures 26–29), and low-jitter clock conditioning.

Key Specifications

Availability

AD9650-105EBZ is available at Aetrix Electronics and suitable for high-speed data acquisition, communications test equipment, and radar receiver prototyping requiring stable component supply, traceable sourcing, and long-term evaluation platform continuity.

Supply support for AD9650-105EBZ 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 Wilmington, MA, with design centers worldwide.

The AD9650-105EBZ belongs to Analog Devices' high-speed ADC evaluation platform family, engineered to accelerate time-to-test for precision sampling systems - supporting rapid validation of dynamic performance, clock jitter sensitivity, and system-level signal chain integration.

FAQ

What is the primary function of the AD9650-105EBZ?

The AD9650-105EBZ is an evaluation board purpose-built for the AD9650-105 analog-to-digital converter. It provides all necessary support circuitry - including clock generation, analog input conditioning, power regulation, SPI control interface, and CMOS data output buffering - to fully characterize the AD9650-105's dynamic performance (SNR, SFDR, ENOB) under real-world lab conditions. The AD9650-105EBZ enables engineers to validate signal chain behavior without designing custom hardware.

Which ADC does the AD9650-105EBZ evaluate?

The AD9650-105EBZ evaluates only the AD9650-105: a 16-bit, dual-channel, 105 MSPS analog-to-digital converter. While the board shares mechanical and layout heritage with other AD9xxx evaluation platforms (e.g., AD9268, AD9269 families), its default analog input network (Fig. 3), VREF configuration (1.35 V), and jumper settings are specifically optimized for the AD9650-105. The AD9650-105EBZ is not configured out-of-box for AD9268 or AD9269 devices.

Does the AD9650-105EBZ include an on-board clock source?

The AD9650-105EBZ ships with a Valpey Fisher VFAC3-BHL oscillator pre-installed and configured for 105 MHz operation - matching the rated speed of the AD9650-105. This low-phase-noise oscillator connects via J605 and C610 to the ADC clock input. Users may disable it by removing J605 and apply an external 50 Ω-terminated clock signal directly to SMA connector J602. The AD9650-105EBZ also supports AD9517-based clock synthesis via U701 when R607/R608 and R731/R732 are populated.

Can the AD9650-105EBZ be powered using bench supplies instead of the included wall adapter?

Yes - the AD9650-105EBZ supports external bench power supplies. To bypass the onboard LDOs, remove ferrite beads E101, E102, E114, E103, E105, and E107, then connect individual supplies to P102 (DUT_AVDD/DRVDD, 1.8 V @ 1 A) and P103 (DVDD, 1.8 V @ 1 A). A separate 3.3 V supply (3V_CLK) is required for SPI and clock circuitry. The AD9650-105EBZ maintains full functionality under external bias, preserving all analog input, clock, and data capture capabilities.

How is data captured and analyzed from the AD9650-105EBZ?

Data from the AD9650-105EBZ is captured via its CMOS digital outputs (Channel A on P903, Channel B on P902), which connect directly to the HSC-ADC-EVALCZ FPGA-based data capture board. Acquisition and analysis are performed using VisualAnalog software, which displays FFTs, SNR/SFDR metrics, and time-domain waveforms - all synchronized with SPI-configurable ADC settings. The AD9650-105EBZ requires no firmware development; VisualAnalog and SPI Controller software handle register programming, data streaming, and real-time visualization out-of-the-box.