User's Guide
SLAU443–May 2012
EEG Front-End Performance Demonstration Kit
This user's guide describes the characteristics, operation, and use of the ADS1299EEG-FE. This EVM is
an evaluation module for the ADS1299, an eight-channel, 24-bit, low-power; integrated analog front-end
(AFE) designed for electroencephalography (EEG) applications. The ADS1299ECG-FE is intended for
prototyping and evaluation. This user's guide includes a complete circuit description, schematic diagram,
and bill of materials.
The following related documents are available through the Texas Instruments web site at www.ti.com.
Device
Literature Number
ADS1299
SBAS499
Contents
1
2
ADS1299EEG-FE Overview ............................................................................................... 4
1.1
1.2
Important Disclaimer Information ................................................................................ 4
Information about Cautions and Warnings ..................................................................... 4
Overview ..................................................................................................................... 5
2.1
2.2
2.3
2.4
2.5
Introduction ......................................................................................................... 5
Supported Features ................................................................................................ 5
Features Not Supported in Current Version .................................................................... 5
ADS1299EEG-FE Hardware ..................................................................................... 5
Factory Default Jumper Settings ................................................................................. 6
3
4
Software Installation ........................................................................................................ 7
3.1
3.2
3.3
Minimum Requirements ........................................................................................... 7
Installing the Software ............................................................................................. 7
Install the ADS1299 EVM Hardware Drivers ................................................................. 10
ADS1299EEG-FE Daughter Card Hardware Introduction ........................................................... 13
4.1
4.2
4.3
4.4
4.5
4.6
Power Supply ..................................................................................................... 14
Clock ............................................................................................................... 15
Reference .......................................................................................................... 16
Accessing ADS1299 Analog Signals .......................................................................... 16
Accessing ADS1299 Digital Signals ........................................................................... 16
Analog Inputs ..................................................................................................... 17
5
Using the Software: ADS1299 Control Registers and GUI .......................................................... 18
5.1
5.2
5.3
5.4
5.5
5.6
Overview and Features .......................................................................................... 18
Global Channel Registers ....................................................................................... 19
Channel Control Registers ...................................................................................... 19
GPIO and Other Registers ...................................................................................... 23
Lead-Off and BIAS Registers ................................................................................... 23
Register Map ...................................................................................................... 26
6
7
ADS1299EEG-FE Analysis Tools ....................................................................................... 27
6.1
6.2
6.3
Scope Tab ......................................................................................................... 27
Histogram Tool .................................................................................................... 28
FFT Tool ........................................................................................................... 29
EEG Specific Features .................................................................................................... 32
Reference Signal and Patient Bias Signal .................................................................... 32
7.1
SPI is a trademark of Motorola.
1
SLAU443–May 2012
EEG Front-End Performance Demonstration Kit
Submit Documentation Feedback
Copyright © 2012, Texas Instruments Incorporated