Analog Devices Inc. AD9641-80KITZ

Overview

AD9641-80KITZ from Analog Devices is a single-channel, 14-bit, 80 MSPS analog-to-digital converter (ADC) evaluation board designed to fully characterize the AD9641-80EBZ device in lab and development environments. It supports JESD204A serial output (M=1, L=1, S=1, F=2, N'=16), external clock input up to 80 MHz, and dual power supply options (LDO or ADP2108 switching regulator). The board enables high-fidelity signal acquisition for RF receiver, communications test, and instrumentation applications.

For engineers reviewing the AD9641-80KITZ datasheet, AD9641-80KITZ pinout, AD9641-80KITZ application, or AD9641-80KITZ equivalent, this page delivers verified hardware configuration details, SPI-controlled setup procedures, JESD204A lane mapping, analog input drive options (balun or ADL5562 amplifier), and FPGA capture compatibility with FIFO-GX - all essential for rapid ADC validation and system integration.

Technical Context

The AD9641-80KITZ implements a complete signal chain for the AD9641-80EBZ ADC, including transformer-coupled 50 Ω analog input (10 dBm nominal drive), selectable clocking paths (external LVPECL, on-board VCXO via AD9524, or optional Valpey Fisher oscillator), and configurable power delivery (6 V input conditioned through ADP2108 switching regulator or LDOs). It supports only single-converter JESD204A mode A (1 link, 1 lane) at up to 80 MSPS sample rate.

Hardware-level control is provided via SPI interface using VisualAnalog and SPI Controller software; default operation requires no jumper modifications, while optional features - such as enabling the ADL5562 amplifier (via P401) or configuring clock division - are implemented through discrete jumpers and register writes. The board routes Channel A output exclusively to P601 for connection to the FIFO-GX FPGA data capture platform.

Key Specifications

Availability

AD9641-80KITZ is available at Aetrix Electronics and suitable for RF receiver prototyping, wireless infrastructure testing, and high-speed data acquisition systems requiring stable component supply, traceable sourcing, and long-term evaluation platform continuity.

Supply support for AD9641-80KITZ 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 technologies, headquartered in Wilmington, MA, with design centers worldwide.

The AD9641-80KITZ belongs to Analog Devices' high-speed ADC evaluation platform family, engineered specifically to accelerate time-to-test for RF-sampling converters used in communications, defense, and instrumentation applications.

FAQ

What is the primary function of the AD9641-80KITZ?

The AD9641-80KITZ is an evaluation board dedicated to the AD9641-80EBZ - a 14-bit, 80 MSPS single-channel analog-to-digital converter. Its purpose is to provide a complete, ready-to-use hardware and software environment for evaluating ac performance (SNR, SFDR), JESD204A interface timing, clock jitter sensitivity, and analog input drive behavior under real-world conditions. The AD9641-80KITZ includes all necessary support circuitry, clocking options, and software tools to validate the AD9641-80KITZ in lab and pre-production settings.

Does the AD9641-80KITZ support dual-channel operation?

No, the AD9641-80KITZ supports only single-channel operation, matching the AD9641-80EBZ device it evaluates. Dual-channel capability is exclusive to the AD9644 evaluation boards (e.g., AD9644-80KITZ). The AD9641-80KITZ provides one analog input path (J301), one JESD204A output link (P601), and one ADC core - confirmed by UG-294 Rev. B Section "Evaluation Board Hardware" and Table 1, which specifies M=1 for the AD9641-80KITZ.

Which clock sources are compatible with the AD9641-80KITZ?

The AD9641-80KITZ accepts three clock source configurations: (1) external 50 Ω-terminated sine wave (10–14 dBm, ~2.8 V p-p), (2) differential LVPECL output from the on-board AD9524 clock generator (enabled via R541/R542 and Y501), or (3) optional Valpey Fisher oscillator Y502 (requires jumper on P501). All paths feed the same sampling clock inputs of the AD9641-80EBZ, and clock divider settings are controlled via SPI register 0x5E.

Can the AD9641-80KITZ be powered using bench supplies instead of the included wall adapter?

Yes, the AD9641-80KITZ supports alternative power delivery: remove ferrite beads E202, E204, E205, and E207 (and E201 for AD9644 variants - not applicable here), then apply 1.8 V @ 1 A to P202 (DUT_AVDD/DRVDD) and P203 (DVDD), plus 3.3 V @ 1 A to the 3P3V_ANALOG net for clock circuitry. This bypasses the onboard ADP2108 regulator and LDOs, allowing independent domain biasing - critical for noise-sensitive characterization per UG-294 Section "Power Supplies".

What FPGA platform is required to capture data from the AD9641-80KITZ?

The AD9641-80KITZ is designed for use with the FIFO-GX FPGA-based data capture kit. Data is routed from the AD9641-80EBZ's JESD204A output to P601, which connects directly to the FIFO-GX board. VisualAnalog loads precompiled .rbf configuration files (e.g., ad9644_41.rbf for default mode) onto the FIFO-GX FPGA; no custom HDL development is needed for basic capture, though advanced users may modify the FPGA logic using the provided schematics and layout artwork.