Filter
Top Products
Glossary
NI PXI-4224 User Manual G-4 ni.com
DMA 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.
DNL Differential nonlinearity—A measure in least significant bit of the
worst-case deviation of code widths from their ideal value of 1 LSB.
driver Software that controls a specific hardware device such as a DAQ device.
E
EEPROM Electrically erasable programmable read-only memory—ROM that can be
erased with an electrical signal and reprogrammed.
EMC Electromagnetic compatibility.
EMI Electromagnetic interference—Defines unwanted electromagnetic
radiation from a device, which could interfere with desired signals in test
or communication equipment.
ESD Electrostatic discharge.
F
FIFO First-in first-out memory buffer.
floating signal sources Signal sources with voltage signals that are not connected to an absolute
reference or system ground. Also called nonreferenced signal sources.
Some common example of floating signal sources are batteries,
transformers, or thermocouples.
G
gGram or grams.
gain The factor by which a signal is amplified, sometimes expressed in decibels.
gain accuracy A measure of deviation of the gain of an amplifier from the ideal gain.