3
Table of Contents
Preface
About this User's Guide ....................................................................................................................... 5
What you will learn from this user's guide ......................................................................................................... 5
Conventions in this user's guide ......................................................................................................................... 5
Where to find more information ......................................................................................................................... 5
Chapter 1
Introducing the USB-1608GX-2AO ...................................................................................................... 6
Functional block diagram ................................................................................................................................... 6
Chapter 2
Installing the USB-1608GX-2AO .......................................................................................................... 7
Unpacking........................................................................................................................................................... 7
Installing the software ........................................................................................................................................ 7
Installing the hardware ....................................................................................................................................... 7
Calibrating .......................................................................................................................................................... 7
Self-calibration ................................................................................................................................................................. 7
Factory calibration ............................................................................................................................................................ 7
Firmware updates ............................................................................................................................................... 7
Chapter 3
Functional Details ................................................................................................................................. 8
Analog input modes ............................................................................................................................................ 8
Software paced .................................................................................................................................................................. 8
Hardware paced ................................................................................................................................................................ 8
Burst mode.......................................................................................................................................................... 8
External components .......................................................................................................................................... 9
USB connector .................................................................................................................................................................. 9
LEDs ................................................................................................................................................................................. 9
Screw terminals................................................................................................................................................................. 9
Signal connections ............................................................................................................................................ 11
Analog input ....................................................................................................................................................................11
Analog output ..................................................................................................................................................................12
External clock I/O ............................................................................................................................................................12
Digital I/O ........................................................................................................................................................................12
Trigger input ....................................................................................................................................................................13
Counter input ...................................................................................................................................................................14
Timer output ....................................................................................................................................................................14
Power output ....................................................................................................................................................................14
Ground .............................................................................................................................................................................14
Mechanical drawings ........................................................................................................................................ 15
Chapter 4
Specifications ...................................................................................................................................... 16
Analog input ..................................................................................................................................................... 16
Accuracy ........................................................................................................................................................... 17
Analog input DC voltage measurement accuracy ............................................................................................................17
Noise performance ...........................................................................................................................................................17
Settling time .....................................................................................................................................................................17
Analog output ................................................................................................................................................... 18
Analog input/output calibration ........................................................................................................................ 19
Digital input/output........................................................................................................................................... 19
External trigger ................................................................................................................................................. 19
External clock input/output............................................................................................................................... 20
