Analog Devices Inc. EVAL-AD7176-2SDZ

Overview

EVAL-AD7176-2SDZ from Analog Devices is a full-featured evaluation kit for the AD7176-2 24-bit, 250 kSPS sigma-delta ADC with 20 µs settling time. It supports PC-based control via the EVAL-SDP-CB1Z controller board, provides standalone capability, and integrates on-board LDOs (5 V, 3.3 V, 2.5 V), precision ADR445 reference, and configurable analog front-end amplifiers (AD8656, ADA4940-1, AD8475) for sensor interface validation in high-resolution data acquisition systems.

For engineers reviewing the EVAL-AD7176-2SDZ datasheet, EVAL-AD7176-2SDZ pinout, EVAL-AD7176-2SDZ application, or EVAL-AD7176-2SDZ equivalent, this page delivers verified hardware configuration options, software-supported register-level control, dc time-domain analysis (waveform/histogram/noise), and flexible analog input routing - all critical for evaluating high-speed, low-noise ADC performance in industrial instrumentation and precision test equipment.

Technical Context

The EVAL-AD7176-2SDZ implements a complete signal chain around the AD7176-2, including regulated 5 V/3.3 V/2.5 V supplies from a 7–9 V external source, dual-path analog input conditioning (buffered, single-ended-to-differential, attenuating), and SPI communication routed through the ADSP-BF527 on EVAL-SDP-CB1Z. It supports both internal (2.5 V) and external (ADR445, 5 V) reference selection via SETUPCONx registers.

Hardware configurability includes solder links (SL1–SL11, LK1–LK9) to select supply voltages, reference sources, amplifier paths, and input topologies (fully differential, pseudo-differential, noise test mode). The board connects via a 120-pin Hirose FX8 connector to the SDP-B controller and exposes test points for standalone digital capture by removing 0 Ω resistors R9–R13.

Key Specifications

Availability

EVAL-AD7176-2SDZ is available at Aetrix Electronics and suitable for precision instrumentation, industrial process control, and automated test equipment requiring stable component supply, rapid ADC evaluation, and traceable reference-grade validation.

Supply support for EVAL-AD7176-2SDZ 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, automotive, communications, and healthcare markets.

EVAL-AD7176-2SDZ belongs to Analog Devices' precision data acquisition evaluation platform family, designed specifically to accelerate development of high-resolution, low-noise measurement systems using their sigma-delta ADC portfolio.

FAQ

What is the primary function of the EVAL-AD7176-2SDZ evaluation kit?

The EVAL-AD7176-2SDZ evaluation kit is a hardware-software system designed to evaluate the AD7176-2 24-bit, 250 kSPS sigma-delta ADC. It provides regulated power, configurable analog front-end options, SPI interface via EVAL-SDP-CB1Z, and AD717x Eval+ software for real-time register control and dc performance analysis - enabling rapid validation of the AD7176-2 in precision measurement applications.

Does the EVAL-AD7176-2SDZ support standalone operation without a PC?

Yes, the EVAL-AD7176-2SDZ supports standalone operation. By removing 0 Ω resistors R9–R13, the SPI lines (CS, SCLK, DIN, DOUT/RDY) are disconnected from the EVAL-SDP-CB1Z, allowing direct connection to an external digital capture system. Power and analog inputs remain fully functional, preserving all on-board regulation and amplifier configurations for bench testing independent of PC control.

Which reference voltage options does the EVAL-AD7176-2SDZ provide for the AD7176-2?

The EVAL-AD7176-2SDZ provides two reference options for the AD7176-2: the internal 2.5 V reference (default) and the external ADR445 5 V precision reference. Selection is made per setup configuration (SETUPCONx registers) via the AD717x Eval+ software - not by hardware jumpers - enabling dynamic reference switching during evaluation without physical rework.

How are analog inputs configured on the EVAL-AD7176-2SDZ?

Analog inputs on the EVAL-AD7176-2SDZ are configurable via solder links SL4, SL8–SL11 and connectors J6/J8/A0–A4. AIN0–AIN3 can be routed through AD8656 buffers (gain = 2), ADA4940-1 (SE-to-DIFF), or AD8475 (attenuating SE-to-DIFF). AIN4 is linked to J8 by default unless LK5–LK9 are inserted for on-board noise test mode, where all inputs short to REFOUT.

What software is required to operate the EVAL-AD7176-2SDZ, and what does it provide?

The AD717x Eval+ software is required to operate the EVAL-AD7176-2SDZ. It provides interactive register-level configuration of the AD7176-2, real-time waveform and histogram visualization, noise spectral analysis, filter profile modeling (rejection, step response), and timing/power estimation. The software runs on Windows XP–10 and requires .NET Framework 3.5 and EVAL-SDP-CB1Z drivers installed prior to hardware connection.