Glossary
SCXI-1125 User Manual G-2 ni.com
AA/D analog-to-digital
absolute accuracy The maximum difference between the measured value from a data
acquisition device and the true voltage applied to the input, typically
specified as ± voltage.
AC alternating current
ADC analog-to-digital converter—An electronic device, often an integrated
circuit, that converts an analog voltage to a digital number.
ADE application development environment—A software environment
incorporating the development, debug, and analysis tools for software
development.
AI GND analog input ground
AI HOLD COMP,
AI HOLD
clock that triggers scanning
amplification A type of signal conditioning that improves accuracy in the resulting
digitized signal by increasing signal amplitude relative to noise.
autozero A procedure for eliminating offsets generated by an amplifier stage.
Bbandwidth The range of frequencies present in a signal, or the range of frequencies to
which a measuring device can respond.
bias current The small input current flowing into or out of the input terminals of an
amplifier.
bit one binary digit, either 0 or 1
BNC Bayonet-Neill-Concelman—A type of coaxial connector used in situations
requiring shielded cable for signal connections and/or controlled
impedance applications.