Table of Contents

Preface

 

About this User's Guide ......................................................................................................................

vi

What you will learn from this user's guide ........................................................................................................

vi

Conventions in this user's guide ........................................................................................................................

vi

Chapter 1

 

Introducing the UMDAS 0802DA .....................................................................................................

1-1

UMDAS 0802DA block diagram...................................................................................................................

1-2

Software features ............................................................................................................................................

1-2

Connecting a UMDAS 0802DA to your computer is easy..............................................................................

1-3

Chapter 2

 

Installing the UMDAS 0802DA..........................................................................................................

2-1

What comes with your UMDAS 0802DA shipment? ....................................................................................

2-1

Hardware .......................................................................................................................................................................

2-1

Additional documentation..............................................................................................................................................

2-1

Unpacking the UMDAS 0802DA ..................................................................................................................

2-2

Installing the software ....................................................................................................................................

2-2

Installing the hardware ...................................................................................................................................

2-2

Calibrating the UMDAS 0802DA...................................................................................................................

2-3

Chapter 3

 

Functional Details .............................................................................................................................

3-1

Theory of operation - analog input acquisition modes ...................................................................................

3-1

Software paced mode.....................................................................................................................................................

3-1

Continuous scan mode ...................................................................................................................................................

3-1

External components ......................................................................................................................................

3-1

USB connector...............................................................................................................................................................

3-2

LED ...............................................................................................................................................................................

3-2

Screw terminal wiring....................................................................................................................................................

3-2

Main connector and pin out ...........................................................................................................................................

3-3

Analog input terminals (CH0 IN - CH7 IN)...................................................................................................................

3-3

Analog output terminals (D/A OUT 0 and D/A OUT 1)................................................................................................

3-6

Digital I/O terminals (Port A0 to A7, and Port B0 to B7)..............................................................................................

3-6

Power terminals .............................................................................................................................................................

3-7

External trigger terminal ................................................................................................................................................

3-7

Counter terminal ............................................................................................................................................................

3-7

+2.5VREF terminal........................................................................................................................................................

3-8

SYNC terminal ..............................................................................................................................................................

3-8

Ground terminals ...........................................................................................................................................................

3-8

Accuracy.........................................................................................................................................................

3-8

UMDAS 0802DA channel gain queue feature..............................................................................................

3-11

Synchronizing multiple units........................................................................................................................

3-11

Chapter 4

 

Specifications....................................................................................................................................

4-1

Analog input ...................................................................................................................................................

4-1

Analog output .................................................................................................................................................

4-3

Digital input/output.........................................................................................................................................

4-3

External trigger...............................................................................................................................................

4-4

External clock input/output.............................................................................................................................

4-4

Counter section...............................................................................................................................................

4-4

vii