Analog Devices Inc. EVAL-AD7262EDZ

Overview

EVAL-AD7262EDZ from Analog Devices is a dedicated evaluation board for the AD7262 and AD7264 dual, simultaneous-sampling, true differential 12-/14-bit SAR ADCs with integrated programmable gain amplifiers (PGAs). It supports up to 1 MSPS per channel, 14 PGA gain settings (×1 to ×128), and on-board AD780 2.5 V reference - enabling rapid characterization of high-precision data acquisition in industrial and instrumentation systems.

For engineers reviewing the EVAL-AD7262EDZ datasheet, EVAL-AD7262EDZ pinout, EVAL-AD7262EDZ application, or EVAL-AD7262EDZ equivalent, this board provides full hardware control via 96-way edge connector, SMB analog input/output sockets, configurable link options for reference, power-down, gain, and clock routing, and PC-based software for real-time capture, FFT analysis, and linearity evaluation.

Technical Context

The EVAL-AD7262EDZ interfaces directly with the EVAL-CED1Z controller board using a standardized 96-pin edge connector, delivering AVCC (+5 V), VDRIVE (+3.3 V), AGND/DGND, SCLK (up to 40 MHz), CS, and GPIO-controlled signals (G0–G3, CAL, PD0–PD2) to the AD7262/AD7264 IC. On-board SN74LVC1G125 buffers isolate digital control lines, while dual ground planes (AGND/DGND) minimize noise coupling between analog and digital domains.

It supports both standalone and controller-coupled operation via 14 configurable solder links (LK1–LK14) and 5 solder jumpers (SL1–SL5), enabling selection of internal/external reference (AD780 vs. on-chip 2.5 V), VDRIVE source (EVAL-CED1Z, AVCC, or external), and analog supply routing (CA_CBVCC/CC_CDVCC). Differential analog inputs (VA±, VB±, CA±–CD±) are accessible via 24 SMB connectors, with no external buffering required due to integrated PGA front-end.

Key Specifications

Availability

EVAL-AD7262EDZ is available at Aetrix Electronics and suitable for industrial process control, automated test equipment (ATE), power quality analyzers, and precision sensor signal conditioning requiring stable component supply and fast time-to-evaluation.

Supply support for EVAL-AD7262EDZ 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-AD7262EDZ belongs to Analog Devices' precision data acquisition evaluation platform family, designed specifically to accelerate development of high-resolution, low-noise, multi-channel measurement systems using their SAR ADC portfolio.

FAQ

What is the primary function of the EVAL-AD7262EDZ?

The EVAL-AD7262EDZ is an evaluation board intended exclusively for device evaluation of the AD7262 and AD7264 dual, simultaneous-sampling, 12-/14-bit SAR ADCs. It provides complete hardware infrastructure-including on-board voltage reference (AD780), analog buffering, configurable power and signal routing, and SMB socket access-to validate performance, verify system integration, and develop firmware without custom PCB design. The EVAL-AD7262EDZ is not certified for production use.

Which ADC models does the EVAL-AD7262EDZ support?

The EVAL-AD7262EDZ supports both the AD7262 (dual 12-bit) and AD7264 (dual 14-bit) ADCs. These devices share identical pinouts, functional architecture, and interface protocols-enabling the same evaluation board to characterize either part. The board's link configuration (e.g., LK3 REFSEL setting) and software detect and adapt to the specific device mounted, preserving accurate gain calibration and timing behavior for each model.

How does the EVAL-AD7262EDZ connect to a host system?

The EVAL-AD7262EDZ connects to a host system via two primary paths: (1) Directly to the EVAL-CED1Z controller board using its 96-way edge connector (J1), which supplies power, clocks, control signals, and data lines; and (2) To a Windows PC via USB through the EVAL-CED1Z. No direct USB or PCIe interface exists on the EVAL-AD7262EDZ itself - all host communication is mediated by the EVAL-CED1Z FPGA controller and its bundled PC software.

Can the EVAL-AD7262EDZ operate without the EVAL-CED1Z?

Yes, the EVAL-AD7262EDZ can operate as a standalone board when configured with external power supplies (+12 V for AD780, AVCC +5 V, VDRIVE +3.3 V), clock (SCLK via SCK SMB), frame sync (CS via CS SMB), and digital control signals (G0–G3, CAL, PD0–PD2 via GPIO SMBs). However, standalone operation requires user-provided firmware or logic to drive the SPI interface and process DOUTA/DOUTB data - the board lacks onboard microcontroller or data storage capability.

What software is provided with the EVAL-AD7262EDZ?

The EVAL-AD7262EDZ ships with Windows-compatible PC software (Windows 2000/XP) that runs exclusively with the EVAL-CED1Z controller. It provides real-time waveform display, FFT spectral analysis, histogram-based INL/DNL calculation, linearity tab visualization, and configurable sampling parameters (sample count, throughput rate, gain setting). The software auto-detects the connected AD7262 or AD7264 and loads appropriate calibration coefficients - no manual configuration of device-specific registers is required for basic evaluation.