MLZ2012A3R3W datasheet(2/68 Pages) TI1

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7.2

Lead-Off Detection

............................................................................................... 36

7.3

External Calibration/Test Signals

............................................................................... 40

Test Options on the EVM

................................................................................................. 43

8.1

On Chip (ADS1299) Input Short

................................................................................ 43

8.2

External Input Short with 5K Resistor

.......................................................................... 44

8.3

Noise with Common Reference on Negative Inputs

......................................................... 46

8.4

Noise with Buffered Common Reference Input

............................................................... 48

8.5

Internally Generated Test Signal and Other Multiplexer Inputs

............................................ 49

8.6

Arbitrary Input Signal

............................................................................................. 49

Bill of Materials, Layouts and Schematics

............................................................................. 50

9.1

ADS1299EEG-FE Front-End Board Schematics

............................................................. 50

9.2

Printed Circuit Board Layout

.................................................................................... 53

9.3

Bill of Materials

.................................................................................................... 57

9.4

ADS1299EEG-FE Power-Supply Recommendations

....................................................... 59

List of Figures

ADS1299EEG-FE Kit

....................................................................................................... 6

Executable to Run ADS1299 Software Installation

..................................................................... 7

Initialization of ADS1299EEG-FE

......................................................................................... 8

License Agreement

......................................................................................................... 8

Installation Process

......................................................................................................... 9

USBStyx Driver Preinstallation

............................................................................................ 9

Completion of ADS1299 Software Installation

......................................................................... 10

New Hardware Wizard

.................................................................................................... 10

New Hardware Wizard Screen 3

........................................................................................ 11

Completion of the Initial USB Drive

..................................................................................... 11

Second 'New Hardware" Wizard

........................................................................................ 12

Install the USBStyx Driver

................................................................................................ 12

ADS1299 EEG-FE Front End Block Diagram

......................................................................... 14

Input Configurations Supported by the EEG-FE a) Differential Inputs b) Single ended inputs

.................. 17

File Save Option Under 'Save' Tab

..................................................................................... 18

Channel Registers GUI for Global Registers

.......................................................................... 19

Input Multiplexer for a Single Channel (MAIN = [000 or 110 or 111])

.............................................. 20

Channel Control Registers GUI Panel

.................................................................................. 20

........................................................................................... 21

Internal Test Signals

...................................................................................................... 21

Simplified Diode Arrangement

........................................................................................... 22

Eight Channel Read of Internal Temperature Data

................................................................... 22

GPIO Control Register GUI Panel

....................................................................................... 23

LOFF_STATP and LOFF_STATN Comparators

...................................................................... 24

LOFF_SENSP and LOFF_SENSN Registers GUI Panel

............................................................ 24

Lead-Off Status Indicator

................................................................................................. 25

BIAS_SENSP and BIAS_SENSN GUI Panel

.......................................................................... 26

Device Register Settings

................................................................................................. 26

Scope Tool Features

...................................................................................................... 27

Zoom Option on the Waveform Examination Tool

.................................................................... 28

Histogram Bins for Input Short Noise

................................................................................... 29

Analysis : FFT Graph of Input Short Test

.............................................................................. 30

Analysis : FFT : AC Analysis Parameters : Windowing Options

.................................................... 31

Analysis : FFT : FFT Analysis : Input Short Condition

................................................................ 31

Changing the User-Defined Dynamic Range for Channel 1

......................................................... 32

EEG Front-End Performance Demonstration Kit

SLAU443 – May 2012

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