Glossary
6023E/6024E/6025E User Manual G-6 ni.com
GPCTR1_UP_DOWN general purpose counter 1 up down
GPIB General Purpose Interface bus, synonymous with HP-IB. The standard bus
used for controlling electronic instruments with a computer. Also called
IEEE 488 bus because it is defined by ANSI/IEEE Standards 488-1978,
488.1-1987, and 488.2-1987.
grounded measurement
system
See RSE.
H
h hour
hex hexadecimal
Hz hertz—cycles per second of a periodic signal
I
INL integral nonlinearity—a measure in LSB of the worst-case deviation from
the ideal A/D or D/A transfer characteristic of the analog I/O circuitry
input bias current the current that flows into the inputs of a circuit
input impedance the measured resistance and capacitance between the input terminals of a
circuit
input offset current the difference in the input bias currents of the two inputs of an
instrumentation amplifier
instrumentation
amplifier
a very accurate differential amplifier with a high input impedance
interrupt a computer signal indicating that the CPU should suspend its current task
to service a designated activity
I/O input/output—the transfer of data to/from a computer system involving
communications channels, operator interface devices, and/or data
acquisition and control interfaces
I
OH
current, output high