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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
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