2 Overview

2.1 Introduction

The ADS1299EEG-FE is intended for evaluating the ADS1299 low-power, low noise 24-bit, simultaneously sampling, eight-channel front-end for EEG applications. The digital SPITM control interface is provided by the MMB0 Modular EVM motherboard (Rev. D or higher) that connects to the ADS1299EEG FE evaluation board (Rev A). The ADS1299EEG-FE (see Figure 1) is NOT a reference design for EEG applications; rather, its purpose is to expedite evaluation and system development. The output of the ADS1299 yields a raw, unfiltered EEG signal.

The MMB0 motherboard allows the ADS1299EEG-FE to be connected to the computer via an available USB port. This manual shows how to use the MMB0 as part of the ADS1299EEG-FE, but does not provide technical details about the MMB0 itself.

Throughout this document, the abbreviation EVM and the term evaluation module are synonymous with the ADS1299EEG-FE.

2. 2.2  Supported Features

   Hardware Features:

   • Configurable for bipolar or unipolar supply operation

   • Configurable for internal and external clock and reference via jumper settings

   • Configurable for dc-coupled inputs

   • External bias electrode drive

   • Option to provide a common reference to all channels negative terminals.

   • Option to select any electrode as reference electrode

   • Option to choose any electrode as bias electrode

   • External shield drive amplifier

     Software Features:

   • Analysis tools including a virtual oscilloscope, histogram, FFT.

   • Data export for post-processing of raw EEG data

3. 2.3  Features Not Supported in Current Version

   NOTE:
   The following features are NOT SUPPORTED by the current version of the evaluation kit.

   • Real-time data processing

   • AC lead-off detection filters