Analog Devices Inc. EVAL-AD7779FMCZ

Overview

EVAL-AD7779FMCZ from Analog Devices is a fully featured evaluation board designed to characterize the AD7779 8-channel, 24-bit, simultaneous-sampling sigma-delta ADC with integrated 12-bit SAR diagnostics. It supports PC-based control via the EVAL-SDP-CH1Z system demonstration platform (SDP-H1), delivers time/frequency domain analysis, and enables standalone hardware operation using an external 9 V supply. It is used for precision industrial data acquisition, power quality monitoring, and sensor array evaluation.

For engineers reviewing the EVAL-AD7779FMCZ datasheet, EVAL-AD7779FMCZ pinout, EVAL-AD7779FMCZ application, or EVAL-AD7779FMCZ equivalent, this page provides verified technical context, key specifications, availability details, manufacturer background, and targeted FAQs - all specific to the EVAL-AD7779FMCZ evaluation kit and its integration with the AD7779 ADC.

Technical Context

The EVAL-AD7779FMCZ interfaces directly with the AD7779 ADC via an FMC-LPC connector (J4) and supports both SPI-configured register access and hardware-controlled sampling modes. It incorporates on-board ADP5070 SMPS and ADP7118/ADP7182 LDOs to generate low-noise ±1.65 V analog rails and 3.3 V digital supplies, configurable via solder links (SLP1–SLP6, SL24).

Analog input flexibility includes SMB connectors and terminal blocks for AIN0±–AIN7±, auxiliary SAR inputs (AUXIN±), and optional surfboard support for Channel 7. Reference options include the default ADR441 2.5 V low-noise source or internal/external alternatives, selectable via SL2 and SLP5.

Key Specifications

Availability

EVAL-AD7779FMCZ is available at Aetrix Electronics and suitable for industrial data acquisition systems, power quality analyzers, and multi-channel sensor interface development requiring stable component supply, traceable sourcing, and long-term evaluation platform continuity.

Supply support for EVAL-AD7779FMCZ 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, with design centers and manufacturing facilities worldwide.

EVAL-AD7779FMCZ belongs to Analog Devices' precision data acquisition evaluation platform family, engineered specifically to accelerate validation of their AD777x series of simultaneous-sampling, power-scalable sigma-delta ADCs for industrial and energy metering applications.

FAQ

What is the primary function of the EVAL-AD7779FMCZ?

The EVAL-AD7779FMCZ is an evaluation board dedicated to characterizing the AD7779 8-channel, 24-bit, simultaneous-sampling sigma-delta ADC. It provides hardware interface, power regulation, analog signal conditioning, and software-controlled analysis tools - all optimized for evaluating the AD7779's performance in precision measurement applications. The EVAL-AD7779FMCZ does not operate as a standalone ADC; it requires the AD7779 IC mounted on-board and controlled via SDP-H1 or external host.

Which controller board is required to operate the EVAL-AD7779FMCZ?

The EVAL-AD7779FMCZ must be used with the EVAL-SDP-CH1Z (SDP-H1) system demonstration platform controller board. This board supplies regulated power, handles USB communication with the host PC, and routes SPI signals to configure and read data from the AD7779 on the EVAL-AD7779FMCZ. No other Analog Devices SDP variant (e.g., SDP-B1 or SDP-K1) is compatible with the EVAL-AD7779FMCZ without firmware or hardware modification.

Does the EVAL-AD7779FMCZ support standalone operation without a PC?

Yes, the EVAL-AD7779FMCZ supports standalone operation using an external 9 V supply (J6) and a host controller (e.g., FPGA or microcontroller) connected via the J1 debug header. In this mode, users implement SPI communication and timing control externally; the AD777x evaluation software is not used. All necessary digital interface signals (SCLK, SDI, SDO, CS, GPIOs) are accessible through J1 and solder links SL5–SL18.

Can the EVAL-AD7779FMCZ be used to evaluate the AD7770 or AD7771?

No - while the EVAL-AD7779FMCZ shares mechanical and layout compatibility with EVAL-AD7770FMCZ and EVAL-AD7771FMCZ, it is calibrated and validated exclusively for the AD7779. The AD7770 and AD7771 have different maximum sample rates (32 kSPS and 128 kSPS respectively), distinct power scaling behavior, and non-identical register maps. Using the EVAL-AD7779FMCZ with AD7770 or AD7771 requires manual register reconfiguration and may yield inaccurate performance metrics.

What reference voltage does the EVAL-AD7779FMCZ use by default?

The EVAL-AD7779FMCZ uses the ADR441 2.5 V ultra-low-noise voltage reference by default (configured via SL2 Position A). This reference sets the full-scale differential input range to 0 V to 2.5 V across all eight channels. Users can switch to the AD7779's internal reference or an external source via SL2 Position B/C or open-circuit configuration, but doing so requires corresponding software calibration updates in the AD777x evaluation tool.