Analog Devices Inc. EVAL-AD7357EDZ

Overview

EVAL-AD7357EDZ from Analog Devices is a full-featured evaluation board designed for the AD7357 - a dual, 14-bit, simultaneous-sampling successive approximation ADC with differential inputs, 2.5 V VDD supply, 1.8–3.6 V VDRIVE, and up to 4.2 MSPS throughput. It supports standalone operation or integration with the EVAL-CED1Z controller for PC-based data capture and analysis in high-speed data acquisition systems.

For engineers reviewing the EVAL-AD7357EDZ datasheet, EVAL-AD7357EDZ pinout, EVAL-AD7357EDZ application, or EVAL-AD7357EDZ equivalent, this board enables rapid validation of AD7357 performance including INL/DNL, FFT spectral purity, and dual-channel timing alignment under real-world analog input conditions with on-board AD8138 differential drivers and ADR421 precision references.

Technical Context

The EVAL-AD7357EDZ provides complete signal conditioning for the AD7357 ADC, integrating two AD8138 single-ended-to-differential converters for analog input buffering and two ADR421 2.5 V precision voltage references for REFA/REFB. Its dual-ground architecture (AGND/DGND) with single-point connection near the ADC minimizes noise coupling between analog and digital domains.

Interfacing is standardized via a 96-way edge connector compatible with EVAL-CED1Z, supporting all control signals (SCLK, CS), dual serial data outputs (SDATAA/SDATAB), and power rails (VDD, VDRIVE, ±5 V). Link options (LK1–LK4, S1–S24) allow flexible configuration for external or CED-supplied supplies, clock sources, reference paths, and termination.

Key Specifications

Availability

EVAL-AD7357EDZ is available at Aetrix Electronics and suitable for high-speed data acquisition, instrumentation-grade test equipment, and dual-channel sensor interface development requiring stable component supply, traceable sourcing, and long-term evaluation platform continuity.

Supply support for EVAL-AD7357EDZ 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 design and manufacturing operations worldwide.

The EVAL-AD7357EDZ belongs to Analog Devices' precision converter evaluation platform family, engineered to accelerate prototyping and characterization of high-resolution, simultaneous-sampling ADCs in demanding measurement and control applications.

FAQ

What is the primary function of the EVAL-AD7357EDZ?

The EVAL-AD7357EDZ is an evaluation board specifically built to characterize and validate the AD7357 dual 14-bit simultaneous-sampling ADC. It provides full signal chain support-including on-board AD8138 differential drivers, ADR421 precision references, configurable power routing, and 96-way EVAL-CED1Z compatibility-enabling engineers to measure dynamic performance (SNR, THD, SFDR), linearity (INL/DNL), and timing alignment without custom hardware. The EVAL-AD7357EDZ is not intended for production use.

Which ADC variants does the EVAL-AD7357EDZ support besides the AD7357?

The EVAL-AD7357EDZ is a shared evaluation platform for three related devices: the AD7352 (dual 12-bit), AD7356 (dual 12-bit, higher speed), and AD7357 (dual 14-bit). All share identical pinout, interface protocol, and layout footprint, allowing the same EVAL-AD7357EDZ board to be used interchangeably with any of these ICs by selecting the appropriate part number in the bundled software. No hardware modification is required to switch between them.

How does the EVAL-AD7357EDZ connect to a host PC?

The EVAL-AD7357EDZ connects to a host PC indirectly via the EVAL-CED1Z controller board, which interfaces to the PC using a standard USB 2.0 cable. The EVAL-CED1Z supplies all necessary power (VDD, VDRIVE, ±5 V), clocks (SCLK), and control signals (CS) to the EVAL-AD7357EDZ through its 96-way edge connector. The bundled Windows software communicates exclusively with the EVAL-CED1Z FPGA, not directly with the EVAL-AD7357EDZ.

What are the key configurable link options on the EVAL-AD7357EDZ?

The EVAL-AD7357EDZ features four jumper links (LK1–LK4) for selecting power source (CED vs. external) for VDD, VDRIVE, V+, and V−, plus 21 solder links (S1–S24) for routing SCLK, CS, SDATAA, SDATAB, common-mode inputs, reference paths, and input termination. Factory default settings configure the EVAL-AD7357EDZ for immediate use with EVAL-CED1Z, including closed links for CED-supplied SCLK (S2/S12), CS (S8), SDATA routing (S4/S6), and internal reference application (S13/S16).

Does the EVAL-AD7357EDZ include analog input connectors?

Yes - the EVAL-AD7357EDZ includes two subminiature BNC sockets (VA and VB) for applying single-ended bipolar analog input signals to the AD8138 differential drivers. Additional BNC connectors support external reference (EXT REF A/B), external common-mode voltage (EXT COM A/B), and direct access to digital signals (SCLK, CS, SDATAA, SDATAB). These allow full signal injection and probing during characterization without soldering or adapter cables.