Programming instructions

P-Channel MOSFET
 National Instruments Corporation 4-11 Multisim Component Reference Guide
This array is useful in applications including differential amplifiers, DC amplifiers, level
shiftors, timers, thyristor firing circuits and operational amplifiers.
4.4.3 General-purpose High-current NPN Transistor
Array
This array consists of five high-current NPN transistors on a common monolithic substrate.
Two of these transistors are matched at low currents for applications in which offset
parameters are particularly important. Independent connections for each transistor and a
separate terminal for the substrate allow for maximum flexibility in circuit design.
This array is useful in applications such as signal processing and switching systems operating
from DC to VHF. Other applications include lamp and relay driver, differential amplifier,
thyristor firing and temperature-compensated amplifier.
4.5 P-Channel MOSFET
This device is a P-channel MOSFET. See also “MOSFET” on page 4-11.
4.6 N-Channel MOSFET
This device is an N-channel MOSFET. See also “MOSFET” on page 4-11.
4.7 MOSFET
A MOSFET is a Metal-Oxide-Semiconductor FET. This transistor is a type of FET that uses
an induced electrical field to control current through the device. Either negative or positive
gate voltages can be applied to control the current.
The substrate is usually connected to the most negatively biased part of the MOSFET, usually
the source lead. In the three-terminal MOSFETs, the substrate is internally connected to the
source. N-channel MOSFETs have an inward-pointing substrate arrow, and p-channel
MOSFETs have an outward-pointing arrow. N-channel and p-channel MOSFETs are
identical, except that their voltage polarities are opposite.
The 4-Terminal Enhanced N-MOSFET is an n-channel enhancement MOSFET. Because the
substrate lead is not connected to the source lead, it has four terminals.
ComponentRef.book Page 11 Thursday, December 7, 2006 10:12 AM