Analog Devices Inc. EVAL-AD5766SD2Z

Overview

EVAL-AD5766SD2Z from Analog Devices is a fully featured evaluation board for the AD5766 16-channel, 16-bit voltage output denseDAC, integrating the ADP5071 switching regulator to generate ±8 V/−22 V from a single 3.3 V input and enabling DAC output ranges up to −20 V to +6 V. It supports PC-based control via the EVAL-SDP-CB1Z SDP board and ACE software, with on-board PMOD (J10) and header connectors (J2/J3) for direct channel access and external monitoring.

For engineers reviewing the EVAL-AD5766SD2Z datasheet, EVAL-AD5766SD2Z pinout, EVAL-AD5766SD2Z application, or EVAL-AD5766SD2Z equivalent, this board enables rapid functional validation of high-channel-count precision voltage generation in industrial automation, test instrumentation, and optical control systems - with configurable power options, software-selectable output spans, and real-time register-level control via SPI-compatible interface.

Technical Context

The EVAL-AD5766SD2Z implements a complete signal chain for the AD5766 DAC, including integrated ADR4525 2.5 V reference, ADP5071 dual-output switching regulator, and decoupled analog/digital power domains with single-point AGND/DGND connection. It supports both bench-supply and single-rail 3.3 V operation via jumper-configurable links (LK1–LK12), enabling evaluation across all AD5766 output voltage ranges including −20 V to +6 V, −10 V to +10 V, and −16 V to +10 V.

Control is implemented through a 12-pin PMOD interface (J10) supporting SYNC, SDIN/MOSI, SDO/MISO, SCLK, RESET, and dual DGND/VLOGIC pins - compatible with standard SPI timing and SDP-B host communication. The ACE software provides GUI-driven configuration of DAC registers, span selection, dithering, MUX_OUT routing, and memory-mapped register access over USB.

Key Specifications

Availability

EVAL-AD5766SD2Z is available at Aetrix Electronics and suitable for industrial automation, semiconductor test equipment, and optical beam steering applications requiring stable component supply, full-feature DAC evaluation, and rapid prototyping of multi-channel analog output systems.

Supply support for EVAL-AD5766SD2Z 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, serving industrial, communications, automotive, and healthcare markets with precision data conversion and power management solutions.

EVAL-AD5766SD2Z belongs to Analog Devices' denseDAC® evaluation platform family, designed specifically to accelerate development of high-channel-density, high-accuracy voltage generation systems for automated test, process control, and scientific instrumentation.

FAQ

What is the primary function of the EVAL-AD5766SD2Z evaluation board?

The EVAL-AD5766SD2Z evaluation board is a complete hardware and software platform for evaluating the AD5766 16-channel, 16-bit voltage output denseDAC. It integrates power conditioning (ADP5071), precision reference (ADR4525), and interface circuitry to enable immediate functional testing, span configuration, register-level control, and performance characterization without custom design effort. The EVAL-AD5766SD2Z supports both bench supply and single 3.3 V operation, and connects directly to Analog Devices' SDP-B controller and ACE software.

Which DAC does the EVAL-AD5766SD2Z support, and what are its key electrical capabilities?

The EVAL-AD5766SD2Z is configured for the AD5766BCBZ-WP - a 16-channel, 16-bit voltage output DAC with integrated 2.5 V reference and output buffers capable of sourcing or sinking up to 20 mA per channel. It supports software-selectable output ranges including −20 V to +6 V, −10 V to +10 V, and −16 V to +10 V, with monotonicity guaranteed over temperature and full-scale accuracy specified in the AD5766 datasheet. The EVAL-AD5766SD2Z routes all 16 outputs to accessible headers (J2/J3) and the MUX_OUT monitor pin.

How is the EVAL-AD5766SD2Z powered, and what are the jumper configuration requirements?

The EVAL-AD5766SD2Z can be powered either by the on-board ADP5071 switching regulator (fed via J12 3.3 V input) or by external bench supplies applied to J9 (AVDD/AVSS) and optionally J11/J13 (AVCC/VLOGIC). Default ADP5071 operation requires LK4/LK5 set to Position B and LK8 inserted; bench supply mode requires LK4/LK5 in Position A and LK8 removed. Link configurations for AVCC, VLOGIC, reference, and ADP5071 sequencing are detailed in Table 3 of UG-1070. The EVAL-AD5766SD2Z enforces 34 V absolute maximum between AVDD and AVSS.

What software and host interface are required to operate the EVAL-AD5766SD2Z?

The EVAL-AD5766SD2Z is controlled using Analog Devices' ACE (Analog Circuit Evaluation) software, which communicates via USB to the EVAL-SDP-CB1Z system demonstration platform (SDP-B) connected to J1. ACE provides a graphical interface for configuring DAC registers, selecting output spans, enabling dither, routing channels to MUX_OUT, and accessing the full memory map. The EVAL-AD5766SD2Z also supports direct SPI-compatible control via its J10 PMOD connector (SYNC, SDIN, SDO, SCLK, RESET) for integration into custom host systems.

Can the EVAL-AD5766SD2Z evaluate multiple output voltage ranges, and how is range selection performed?

Yes, the EVAL-AD5766SD2Z supports all AD5766 output voltage ranges including −20 V to +6 V, −16 V to +10 V, −10 V to +10 V, −12 V to +14 V, and −5 V to +5 V - subject to supply headroom constraints. Range selection is performed entirely in software via ACE: users click the "RANGE SET DAC" button to open the Span Selection window and choose the desired span per channel. Hardware configuration (e.g., ADP5071 feedback resistors R26/R28/R30/R31) determines achievable ranges under single-supply operation; bench supplies unlock the full specification range set.