Analog Devices Inc. EVAL-AD7760EDZ

Overview

EVAL-AD7760EDZ from Analog Devices is a dedicated evaluation board for the AD7760 24-bit Σ-Δ ADC, supporting full-speed operation at 2.5 MSPS with 100 dB SNR, on-board 4.096 V reference, 40 MHz crystal oscillator MCLK source, and FPGA-based interface to EVAL-CED1Z for USB-connected PC data acquisition and real-time waveform/FFT/histogram analysis.

For engineers reviewing the EVAL-AD7760EDZ datasheet, EVAL-AD7760EDZ pinout, EVAL-AD7760EDZ application, or EVAL-AD7760EDZ equivalent, this page delivers verified hardware configuration details, software integration requirements (LabVIEW + FPGA code), standalone vs. CED1Z-coupled operation modes, filter programmability support, and power supply architecture - all essential for rapid validation of high-speed precision data acquisition systems.

Technical Context

The EVAL-AD7760EDZ implements a complete signal chain for the AD7760 ADC, including differential XLR input stage, on-board ADP3334 LDOs generating regulated 2.5 V (AVDD1/VDRIVE/DVDD) and 5 V (AVDD2–AVDD4/clock buffer) rails, and configurable MCLK routing via 0 Ω links (R9/R10) between internal 40 MHz oscillator or external SMB source.

It integrates an on-board FPGA that interfaces with EVAL-CED1Z via 40-pin PPI header (J13), enabling register-level control (power mode, decimation rate, gain/offset registers), user-defined FIR filter download (12–96 coefficients), and modulator-mode raw output capture - all managed through Windows-compatible evaluation software with GUI-driven waveform, histogram, and FFT visualization.

Key Specifications

Availability

EVAL-AD7760EDZ is available at Aetrix Electronics and suitable for high-speed precision data acquisition, industrial instrumentation, audio test equipment, and medical imaging system development requiring stable component supply and validated reference design fidelity.

Supply support for EVAL-AD7760EDZ 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 data conversion and signal conditioning.

EVAL-AD7760EDZ belongs to Analog Devices' evaluation platform family for high-resolution Σ-Δ ADCs, designed specifically to accelerate prototyping and performance validation of wide-bandwidth, low-noise measurement systems targeting test & measurement and scientific instrumentation.

FAQ

What is the primary function of the EVAL-AD7760EDZ evaluation board?

The EVAL-AD7760EDZ is a dedicated hardware platform for evaluating the AD7760 24-bit Σ-Δ ADC. It provides complete signal conditioning, clocking (40 MHz crystal or external MCLK), precision reference (4.096 V), regulated power supplies, and FPGA-based digital interface to EVAL-CED1Z - enabling full characterization of the AD7760's 100 dB SNR at 2.5 MSPS in real-world systems. The EVAL-AD7760EDZ itself does not include USB or host connectivity; it relies on EVAL-CED1Z for PC communication.

Does EVAL-AD7760EDZ support both AD7760 and AD7762 devices?

No - although documentation references "AD7760/AD7762" generically, the EVAL-AD7760EDZ board (Rev. PrB) is physically and functionally configured for the AD7760. Its decimation control, software GUI options, and default settings align with the AD7760's five on-chip FIR filter modes (decimation x16 to x256). The AD7762 uses different decimation rates (x32/x64/x128/x256) and parallel interface timing; separate hardware (EVAL-AD7762EDZ) or revision is required for full AD7762 validation.

How is clocking implemented on the EVAL-AD7760EDZ?

The EVAL-AD7760EDZ uses a 40 MHz crystal oscillator as the default MCLK source for the AD7760, buffered by U2 and routed to the ADC's MCLK pin via R9 0 Ω link. An alternative external clock (50 Ω, 5 V logic level) can be applied via SMB connector J8 and selected using R10. LK1 sets the clock buffer supply to 5 V (Position A, default) for optimal performance or 2.5 V (Position B).

Can EVAL-AD7760EDZ operate without EVAL-CED1Z?

Yes - the EVAL-AD7760EDZ supports standalone operation, but users must provide their own digital interface (e.g., custom FPGA or microcontroller) to drive the AD7760's parallel bus, manage register writes, and acquire output data. No USB, software GUI, or automated analysis is available in standalone mode; the board lacks onboard microcontroller or USB controller. All evaluation software, LabVIEW drivers, and real-time visualization require EVAL-CED1Z coupling.

What software and operating systems are supported for EVAL-AD7760EDZ?

The official EVAL-AD7760EDZ software is Windows-compatible (tested on Windows 2000/XP), delivered on CD-ROM with LabVIEW source code and FPGA interface firmware for EVAL-CED1Z. It provides GUI controls for power mode selection, decimation rate (x16–x256), sample count, modulator mode enable/disable, custom FIR filter upload (via .txt coefficient files), and gain/offset register programming. No Linux/macOS native support is provided.