Analog Devices Inc. AD9650-65EBZ

Overview

AD9650-65EBZ from Analog Devices is a dedicated evaluation board for the AD9650-65 16-bit, 65 MSPS dual-channel analog-to-digital converter, supporting full ac performance characterization, SPI-based configuration, and flexible clocking via on-board oscillator or external sources. It enables high-fidelity data capture using HSC-ADC-EVALCZ FPGA platform and supports balun-coupled or amplifier-driven analog inputs.

For engineers reviewing the AD9650-65EBZ datasheet, AD9650-65EBZ pinout, AD9650-65EBZ application, or AD9650-65EBZ equivalent, this page details its hardware architecture, power and signal routing options, jumper-configurable modes (SPI/non-SPI, internal/external VREF, LDO/switching supply), and software integration with VisualAnalog and SPI Controller tools.

Technical Context

The AD9650-65EBZ implements a dual-path analog front end with independent Channel A (AD8375 DVGA option) and Channel B (ADL5562 amplifier option) input networks, each configurable via unpopulated component sites and jumpers. Default analog input uses double-balun coupling with 50 Ω termination and 2 V p-p full-scale range.

It integrates three clocking paths: transformer-coupled single-ended input (J602), on-board Valpey Fisher VFAC3-BHL-65MHz oscillator (enabled via J605), and AD9517-based LVPECL clock generator (enabled via R607/R608/R731/R732). Power delivery supports both default LDO regulation and optional ADP2114 switching regulators for AVDD/DRVDD rails.

Key Specifications

Availability

AD9650-65EBZ is available at Aetrix Electronics and suitable for high-speed data acquisition systems, radar receiver prototyping, communications test equipment, and instrumentation requiring stable component supply and validated ADC evaluation infrastructure.

Supply support for AD9650-65EBZ 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 AD9650-65EBZ belongs to Analog Devices' high-speed ADC evaluation platform family, designed specifically to accelerate development of precision digitization systems operating up to 250 MHz input bandwidth with low jitter, high SNR, and flexible interface options.

FAQ

What is the primary function of the AD9650-65EBZ?

The AD9650-65EBZ is an evaluation board engineered exclusively to characterize and validate the AD9650-65 16-bit, 65 MSPS dual-channel analog-to-digital converter. It provides complete signal chain support-including configurable analog inputs, multiple clocking options, regulated power delivery, and SPI-controlled register access-enabling engineers to measure dynamic performance (SNR, SFDR, ENOB) and integrate the AD9650-65 into system designs without custom hardware development. The AD9650-65EBZ does not function as a standalone ADC but serves as a turnkey test platform for the AD9650-65 device.

Does the AD9650-65EBZ support external clock sources?

Yes, the AD9650-65EBZ supports external clock sources via SMA connector J602, configured for 50 Ω-terminated single-ended sine wave inputs up to ~250 MHz. When using an external clock, J605 must be removed to disable the on-board 65 MHz Valpey Fisher oscillator. The clock path includes ac-coupling, impedance matching, and differential conversion via balun T602 before reaching the AD9650-65's clock inputs. This ensures low-jitter timing critical for maintaining the AD9650-65's specified 76.5 dB SNR and 88.0 dBc SFDR performance.

Can the AD9650-65EBZ be used with other ADCs besides the AD9650-65?

The AD9650-65EBZ is physically and electrically optimized for the AD9650-65 but shares hardware architecture with evaluation boards for the AD9268, AD9258, AD9251, AD9231, AD9204, AD9269, and AD6659 families. However, jumper settings, input network component values (e.g., Figure 3 vs. Figure 4), VREF configuration (1.35 V for AD9650 vs. 1.0 V for AD9268), and clock oscillator frequency (65 MHz for AD9650-65 vs. 40/80 MHz for others) are family-specific. Using the AD9650-65EBZ with non-AD9650 devices requires verified compatibility per Analog Devices UG-003 and may necessitate component changes or firmware adjustments.

What software tools are required to operate the AD9650-65EBZ?

Two core software tools are required: VisualAnalog for real-time FFT analysis, time-domain waveform visualization, and data export (.csv), and the SPI Controller application for low-level register configuration of the AD9650-65-including clock divider setup, data format selection (offset binary/twos complement), power-down mode, and output enable control. Both tools run on Windows and interface via USB to the HSC-ADC-EVALCZ data capture board, which receives CMOS output signals from the AD9650-65EBZ. The AD9650-65EBZ itself contains no onboard processor or firmware.

How is power delivered to the AD9650-65EBZ and the AD9650-65 ADC?

The AD9650-65EBZ accepts 6 V dc input via barrel jack P101 and conditions it through onboard fusing and filtering before distributing to LDO regulators that generate 1.8 V for AVDD, DRVDD, and DVDD rails-matching the AD9650-65's specified supply requirements. Optional ADP2114 switching regulators can replace the LDOs for higher efficiency, requiring specific resistor/capacitor/inductor population per UG-003. Critical analog and digital supplies are isolated using ferrite beads (E101–E107), and separate 3.3 V and 5 V/3 V amplifier bias rails are provided for optional front-end components.