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NI 5911 User Manual G-2
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National Instruments Corporation
A/D analog-to-digital
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 with16 bits
has a higher resolution, and thus a higher degree of accuracy, than a 12-bit
ADC.
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
attenuate
to reduce in magnitude
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. Examples of PC buses are the PCI and ISA bus.
C
C Celsius
CMRR common-mode rejection ratio—a measure of an instrument’s ability to
reject interference from a common-mode signal, usually expressed in
decibels (dB)
coupling the manner in which a signal is connected from one location to another
D
dB decibel—the unit for expressing a logarithmic measure of the ratio of two
signal levels: dB=20log10 V1/V2, for signals in volts
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