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National Instruments NI PXI-562X User Manual

Page 25

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Glossary

NI PXI-562x User Manual

G-2

© National Instruments Corporation

AC coupled

allowing the transmission of AC signals while blocking DC signals

ADC

analog-to-digital converter—an electronic device, often an integrated
circuit, that converts an analog voltage to a digital number

ADC resolution

the resolution of the ADC, which is measured in bits. An ADC with
16 bits has a higher resolution, and thus a higher degree of accuracy,
than a 12-bit ADC.

ADE

application development environment

alias

a false lower frequency component that appears in sampled data acquired
at too low a sampling rate

amplification

a type of signal conditioning that improves accuracy in the resulting
digitized signal and reduces noise

amplitude flatness

a measure of how close to constant the gain of a circuit remains over a range
of frequencies

analog bandwidth

the range of frequencies to which a measuring device can respond

attenuate

to decrease the amplitude of a signal

B

b

bit—one binary digit, either 0 or 1

B

byte—eight related bits of data, an eight-bit binary number. Also used to
denote the amount of memory required to store one byte of data.

bus

the group of conductors that interconnect individual circuitry in a computer.
Typically, a bus is the expansion vehicle to which I/O or other devices are
connected. An example of the PC bus is the PCI bus.

C

C

Celsius

CMOS

complementary metal oxide semiconductor—a process used in making
chips.