Analog Devices Inc. AD9650-25EBZ

Overview

AD9650-25EBZ from Analog Devices is a full-featured evaluation board designed to characterize the AD9650-25 16-bit, 25 MSPS analog-to-digital converter in multiple configurations. It supports SPI-based setup, dual-channel CMOS output capture, external or on-board clocking (including 25 MHz oscillator), and flexible analog input paths via balun or amplifier options.

For engineers reviewing the AD9650-25EBZ datasheet, AD9650-25EBZ pinout, AD9650-25EBZ application, or AD9650-25EBZ equivalent, this board enables rapid validation of dynamic performance (SNR, SFDR), clock jitter sensitivity, power supply rejection, and interface timing margins in high-fidelity data acquisition systems.

Technical Context

The AD9650-25EBZ implements a modular hardware architecture with independent analog input conditioning for Channel A (balun-coupled) and Channel B (optional ADL5562 amplifier path), configurable reference (1.35 V internal VREF, 2.7 V p-p full-scale), and selectable clock routing - including transformer-coupled single-ended input, AD9517 LVPECL clock synthesis, or onboard Valpey Fisher oscillator (25 MHz variant installed).

Power delivery supports both default LDO-regulated rails (1.8 V AVDD/DRVDD, 3.3 V analog support) and optional ADP2114 switching regulators for efficiency evaluation. Output data capture uses buffered CMOS signals routed to the HSC-ADC-EVALCZ FPGA platform via P902/P903 headers.

Key Specifications

Availability

AD9650-25EBZ is available at Aetrix Electronics and suitable for high-precision instrumentation, medical imaging front-ends, and communications test equipment requiring stable component supply, traceable sourcing, and long-term evaluation platform continuity.

Supply support for AD9650-25EBZ 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.

The AD9650-25EBZ belongs to Analog Devices' high-speed ADC evaluation platform family, engineered to accelerate design-in of precision data converters through validated signal chain integrity, low-jitter clocking, and interoperable FPGA capture infrastructure.

FAQ

What is the primary function of the AD9650-25EBZ?

The AD9650-25EBZ is an evaluation board-not a semiconductor component-designed exclusively to assess the performance of the AD9650-25 16-bit, 25 MSPS dual-channel analog-to-digital converter. It provides all necessary support circuitry, including clock generation, analog input conditioning, power regulation, and digital output interfacing to the HSC-ADC-EVALCZ FPGA capture platform. The AD9650-25EBZ enables measurement of key metrics such as SNR, SFDR, and ENOB under real-world signal chain conditions.

Does the AD9650-25EBZ include the AD9650-25 IC?

Yes, the AD9650-25EBZ evaluation board is populated with the AD9650-25 integrated circuit as its device-under-test (DUT). The board is pre-configured with the 25 MHz variant of the AD9650 family and includes supporting components such as baluns, LDOs, jumpers for configuration, and connectors for signal, clock, and data capture. The AD9650-25EBZ is shipped ready for immediate characterization without requiring additional component assembly.

What clock sources are supported by the AD9650-25EBZ?

The AD9650-25EBZ supports three clocking modes: (1) onboard 25 MHz Valpey Fisher VFAC3-BHL oscillator (enabled via J605), (2) external 50 Ω-terminated single-ended sine wave applied to J602, and (3) differential LVPECL clock from the AD9517 synthesizer (U701), configured via SPI and enabled by populating R607/R608 and R731/R732. All paths feed into the AD9650-25's differential CLK+/CLK− inputs with appropriate AC coupling and clipping networks.

How is analog input configured on the AD9650-25EBZ?

The AD9650-25EBZ provides two independent analog input paths: Channel A uses a double-balun network (Figure 3) with 15 Ω series resistors and 0.1 µF AC-coupling caps, optimized for up to 150 MHz; Channel B supports optional ADL5562 differential amplification (U501), which can be substituted with ADA4937 or ADA4938. Both channels accept 2 V p-p differential input by default, with VCM set via on-board resistor network. Input drive is typically 10 dBm into 50 Ω.

Which software tools are required to operate the AD9650-25EBZ?

Operation of the AD9650-25EBZ requires VisualAnalog® for FFT analysis, time-domain waveform visualization, and template-based test setup, plus the SPI Controller software for register-level configuration of the AD9650-25 (clock divide, data format, power-down, OE, etc.). Both tools run on Windows and communicate via USB to the HSC-ADC-EVALCZ FPGA board, which captures and forwards ADC output data. Configuration files must match the AD9650-25 device ID and operating mode.