National Instruments DAQ PCI E Series User Manual page 140

Glossary
DAC0OUT
DAC1OUT
DAQ
dB
DC
DGND
DIFF
DIO
DIP
dithering
DMA
DNL
DO
E
EEPROM
EXTREF
EXTSTROBE
PCI E Series User Manual
analog channel 0 output signal
analog channel 1 output signal
data acquisition—a system that uses the computer to collect,
receive, and generate electrical signals
decibel—the unit for expressing a logarithmic measure of the ratio
of two signal levels: dB=20log10 V1/V2, for signals in volts
direct current
digital ground signal
differential mode
digital input/output
dual inline package
the addition of Gaussian noise to an analog input signal
direct memory access—a method by which data can be transferred
to/from computer memory from/to a device or memory on the bus
while the processor does something else. DMA is the fastest
method of transferring data to/from computer memory.
differential nonlinearity—a measure in LSB of the worst-case
deviation of code widths from their ideal value of 1 LSB
digital output
electrically erasable programmable read-only memory—ROM that
can be erased with an electrical signal and reprogrammed
external reference signal
external strobe signal
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