National Instruments 6023E User Manual
Page 116
Glossary
© National Instruments Corporation
G-3
bus
the group of conductors that interconnect individual circuitry in a computer.
Typically, a bus is the expansion interface to which I/O or other devices are
connected. Examples of PC buses are the ISA bus and PCI bus.
bus master
a type of a plug-in board or controller with the ability to read and write
devices on the computer bus
C
C
Celsius
CH
channel
channel
pin or wire lead to which you apply, or from which you read, an analog or
digital signal. Analog signals can be single-ended or differential. For digital
signals, channels are grouped to form ports.
CMRR
common-mode rejection ratio—a measure of the ability of a differential
amplifier to reject interference from a common-mode signal, usually
expressed in decibels (dB)
CONVERT*
convert signal
counter/timer
a circuit that counts external pulses or clock pulses (timing)
crosstalk
an unwanted signal on one channel due to an input on a different channel
CTR
counter
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
D
D/A
digital-to-analog
DAC
D/A converter—an electronic device, often an integrated circuit, that
converts a digital number into a corresponding analog voltage or current
DAC0OUT
analog channel 0 output signal
DAC1OUT
analog channel 1 output signal