Analog Devices Inc. EVAL-AD7193EBZ

Overview

EVAL-AD7193EBZ from Analog Devices is an evaluation board designed to fully characterize and prototype with the AD7193 - a 4.8 kHz, ultralow-noise, 24-bit sigma-delta ADC featuring four differential or eight pseudo-differential inputs, integrated low-noise instrumentation amplifier, reference detect, and low-side power switch. It supports USB-based PC control, real-time data visualization, register-level configuration, and flexible analog front-end interfacing for precision sensor measurement systems.

For engineers reviewing the EVAL-AD7193EBZ datasheet, EVAL-AD7193EBZ pinout, EVAL-AD7193EBZ application, or EVAL-AD7193EBZ equivalent, this board enables rapid validation of AD7193 performance in low-frequency, high-resolution applications including weigh scales, thermocouple/RTD measurement, and industrial process monitoring - with on-board ADR421 reference, SMB analog input headers, and configurable power options (USB 5 V, regulated 3.3 V, or external supply).

Technical Context

The EVAL-AD7193EBZ implements a complete hardware interface between a host PC and the AD7193 IC via Cypress CY7C68013-56LFXC USB microcontroller, enabling SPI communication and real-time register read/write. It integrates dual reference paths: internal ADR421BRZ (2.5 V) and selectable external reference via REFIN1(±) SMB connectors.

Power architecture supports three modes: direct USB 5 V to AD7193 (J1 = 5 V), regulated 3.3 V via ADP3330ARZ-3.3 (J1 = 3.3 V), or external supply through screw terminal J6 (J1 = EXT). Analog signal conditioning includes noise test circuitry (J4/J5 resistor network), buffered/unbuffered input selection, and burnout current diagnostics.

Key Specifications

Availability

EVAL-AD7193EBZ is available at Aetrix Electronics and suitable for precision sensor evaluation, industrial analog front-end prototyping, and metrology-grade ADC validation requiring stable component supply, traceable sourcing, and long-term lifecycle support.

Supply support for EVAL-AD7193EBZ 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.

The EVAL-AD7193EBZ belongs to Analog Devices' precision data acquisition evaluation platform family, engineered to accelerate development of high-accuracy, low-drift measurement systems for industrial, scientific, and medical instrumentation.

FAQ

What is the primary function of the EVAL-AD7193EBZ?

The EVAL-AD7193EBZ is a dedicated evaluation board for the AD7193 24-bit sigma-delta ADC. It provides full hardware and software infrastructure - including USB interface, configurable power, analog input/reference headers, and Windows GUI - to evaluate, configure, and validate the AD7193's performance in ultra-low-noise, high-resolution measurement applications without requiring custom PCB design.

Does the EVAL-AD7193EBZ require external power, or can it operate solely from USB?

The EVAL-AD7193EBZ can operate entirely from USB 5 V supplied through connector J51. J1 jumper selects USB 5 V directly to the AD7193, or routes it through the ADP3330ARZ-3.3 regulator for 3.3 V operation. An external supply via J6 is optional and used only when higher current or non-USB power is needed - USB alone suffices for standard evaluation.

Which analog input and reference interfaces does the EVAL-AD7193EBZ provide?

The EVAL-AD7193EBZ provides two SMB connectors (J7, J8) for AIN1 and AIN2 signals, plus two SMB connectors (J9, J10) for REFIN1(+) and REFIN1(−). It also includes on-board ADR421BRZ (2.5 V) and supports using USB 5 V as a reference source via resistor divider. All analog connections are isolated and routed with low-noise layout practices per UG-223.

Can the EVAL-AD7193EBZ be used with an external microcontroller instead of a PC?

Yes - the EVAL-AD7193EBZ supports standalone use with an external microcontroller via header J2 (2×8 pin). Removing links from J2 disconnects the on-board CY7C68013 USB controller, exposing the AD7193's SPI bus (SCLK, DIN, DOUT, CS) and GPIO pins (P0–P3) for direct MCU integration. This allows the board to serve as a ready-made analog front end in custom embedded systems.

What software tools are included with the EVAL-AD7193EBZ, and what do they enable?

The EVAL-AD7193EBZ ships with Windows-based LabVIEW™ software that enables real-time waveform display, data logging to text files, register-level configuration (ADC Setup), automated tests (Fast 50 Hz and Low Noise Quick Tests), user-unit calibration, and export to Excel or MathCAD™. The software communicates over USB and supports both connected evaluation and offline register configuration for AD7193 firmware development.