AD7194 Evaluation Board User Guide

The EVAL-AD7194-ASDZ evaluation kit features the AD7194 which is 4.8 kHz ultralow noise 24-bit sigma-delta (Σ-Δ) ADCs. The on-chip low noise gain stage means that signals of small amplitude can interface directly to the ADC. The internal clock option provides a compact solution for low BW requirements.

The AD7194 ACE Plugin fully configures the AD7194 device register functionality and provides dc time domain analysis in the form of waveform graphs, histograms, and associated noise analysis for ADC performance evaluation.

Full specifications on the AD7194 are available in the product data sheet, which should be consulted in conjunction with this user guide when working with the evaluation board.

https://media.githubusercontent.com/media/analogdevicesinc/documentation/main/docs/solutions/reference-designs/eval-ad719x/images/ad7194_blockdiag.png

Features

  • Full featured evaluation board for the AD7194

  • PC control in conjunction with the system demonstration platform (EVAL-SDP-CB1Z/EVAL-SDP-CK1Z)

  • PC software for control and data analysis (time and frequency domain)

Required Software

Quick Start Guide

The following steps highlight the process to begin using the evaluation board.

Equipment Required

Getting started

Warning

Ensure the SDP board is not connected to the USB port of the PC

  • Install the ACE Software

  • Ace Plugin Install guide available here

  • If ACE Software is already installed, update the Plugins to download AD719x Plugin.

  • Connect the EVAL-AD7194-ASDZ to the controller board

    • Option A: Connect the EVAL-AD7194-ASDZ to the EVAL-SDP-CK1Z

      • Using the 120 pin connector

        • Screw the two boards together using the plastic screw-washer set included in the evaluation board kit to ensure that the boards are connected firmly together.

        • Using the Arduino Connectors

https://media.githubusercontent.com/media/analogdevicesinc/documentation/main/docs/solutions/reference-designs/eval-ad719x/images/sdp_connect.png

  • Option B: Connect the EVAL-AD7194-ASDZ to the EVAL-SDP-CB1Z

    • Using the 120 pin connector

      • Screw the two boards together using the plastic screw-washer set included in the evaluation board kit to ensure that the boards are connected firmly together.

  • If using Windows® XP, it may be needed to search for the controller board drivers. Choose to automatically search for the drivers for the controller board if prompted by the operating system.

  • Launch the ACE plugin from the Analog Devices subfolder in the Programs Menu.

https://media.githubusercontent.com/media/analogdevicesinc/documentation/main/docs/solutions/reference-designs/eval-ad719x/images/ace_plugin_open.png

  • The ACE Plugin software is a useful tool to ensure that the Evaluation board is communicating correctly.