User manual

© National Instruments Corporation vii BNC-2090A User Manual
Contents
Chapter 1
BNC-2090A Overview
What You Need to Get Started ......................................................................................1-2
Installing the BNC-2090A .............................................................................................1-3
Setting the BNC-2090A Shield Ground Jumper............................................................1-7
Chapter 2
Connecting Signals
Connecting Analog Input Signals ..................................................................................2-1
Connecting Differential Analog Input Signals ................................................2-2
Measuring Floating Signals in Differential Input Mode...................2-2
Measuring Ground-Referenced Signals in Differential
Input Mode .....................................................................................2-3
Connecting Single-Ended Analog Input Signals.............................................2-3
Measuring Floating Signals in Single-Ended Input Mode................2-4
Measuring Ground-Referenced Signals in Single-Ended
Input Mode .....................................................................................2-5
Connecting AO, APFI 0, and PFI 0 Signals ..................................................................2-5
Connecting Digital Signals ............................................................................................2-6
Using the USER 1 and USER 2 BNC Connectors ........................................................2-7
Chapter 3
Signal Conditioning
Analog Input Signal Conditioning.................................................................................3-1
Building Lowpass Filters.................................................................................3-5
Example ............................................................................................3-6
Building Highpass Filters ................................................................................3-7
Example ............................................................................................3-8
Building Attenuators (Voltage Dividers) ........................................................3-10
Analog Output Signal Conditioning ..............................................................................3-12
Building Lowpass Filters.................................................................................3-13
Building Highpass Filters ................................................................................3-13
Adding Signal Conditioning Components .....................................................................3-14
Soldering and Desoldering on the BNC-2090A..............................................3-15
Installing Bias Resistors ..................................................................................3-15