beautypg.com

National Instruments AT-MIO-16X User Manual

Page 288

background image

Glossary

© National Instruments Corporation

G-5

AT-MIO-16X User Manual

common-mode range

the input range over which a circuit can handle a common-mode signal

common-mode signal

the mathematical average voltage, relative to the computer’s ground, of
the signals from a differential input

common-mode voltage

any voltage present at the instrumentation amplifier inputs with respect
to amplifier ground

compensation range

the range of a parameter for which compensating adjustment can be
made

conditional retrieval

a method of triggering in which you simulate an analog trigger using
software. Also called software triggering.

conversion device

device that transforms a signal from one form to another. For example,
analog-to-digital converters (ADCs) for analog input, digital-to-analog
converters (DACs) for analog output, digital input or output ports, and
counter/timers are conversion devices.

conversion time

the time required, in an analog input or output system, from the moment
a channel is interrogated (such as with a read instruction) to the moment
that accurate data is available

counter/timer

a circuit that counts external pulses or clock pulses (timing)

coupling

the manner in which a signal is connected from one location to another

CPU

central processing unit

crosstalk

an unwanted signal on one channel due to an input on a different
channel

current drive capability

the amount of current a digital or analog output channel is capable of
sourcing or sinking while still operating within voltage range
specifications

current sinking

the ability of a DAQ board to dissipate current for analog or digital
output signals

current sourcing

the ability of a DAQ board to supply current for analog or digital output
signals