NMOS is constructed with the n-type source and drain and a p-type substrate, while PMOS is constructed with the p-type source and drain and an n-type substrate. In an NMOS, carriers are electrons, while in a PMOS carrier are holes. Where CMOS is the combination of NMOS and PMOS. CMOS technology uses less energy to operate at the same output and produces less noise during operation.
Lets check in details.
What is NMOS?
NMOS (nMOSFET) is a kind of MOSFET. An NMOS transistor consists of n-type source and drain and a p-type substrate. When a voltage is applied to the gate, holes in the body (p-type substrate) are driven away from the gate. This allows the formation of an n-type channel between the source and the drain, and a current is conducted from electrons from the source to the drain through an induced n-type channel.
Logic gates and other digital devices implemented using NMOSs are said to have NMOS logic. There are three operating modes in a NMOS called cut-off, triode and saturation. NMOS logic is easy to design and manufacture. Circuits with NMOS logic gates, however, consume static power when the circuit is idle, since DC current flows through the logic gate when the output is low.
What is PMOS?
PMOS (pMOSFET) is a MOSFET type. A PMOS transistor consists of a p-type source and drain and an n-type substrate. When a positive voltage is applied between source and gate (negative voltage between gate and source), a p-type channel with opposite polarities is formed between source and drain. A current is passed through holes from the source to the drain through a p-type induced channel.
A high voltage at the gate causes a PMOS to not conduct, while a low voltage at the gate causes it to conduct. Logic gates and other digital devices implemented using PMOS should have PMOS logic. The PMOS technology is inexpensive and has good immunity to interference.
What is CMOS?
Complementary Metal-Oxide-Semiconductor (CMOS) is an integrated circuit technology. CMOS technology is used in microprocessors, microcontrollers, static RAM and other digital logic circuits.
The CMOS technology is also used for various analog circuits such as image sensors (CMOS sensor), data converters and highly integrated transceivers for many types of communication.
The difference between NMOS, PMOS and CMOS transistors
- NMOS consists of n-type source and drain and a p-type substrate.
- In an NMOS, carriers are electrons When a high voltage is applied to the gate, the NMOS conducts If there is a low voltage at the gate, the NMOS will not conduct NMOS are said to be faster than PMOS because the charge carriers in NMOS, which are electrons, travel twice as fast as holes.
- NMOS ICs would be smaller than PMOS ICs NMOS can deliver half of the impedance delivered by a PMOS NMOS represents an N-type MOS transistor.
- PMOS is constructed with p-source and drain and an n-substrate.
- PMOS, carriers are holes. If a high voltage is applied to the gate, the PMOS will not conduct When a low voltage is applied to the gate,
- PMOS conducts Which are the carriers in PMOS.
- PMOS devices are less susceptible to interference than NMOS devices. PMOS represents a P-type MOS transistor.
- CMOS means complementary metal oxide semiconductor transistor.
- The CMOS circuit includes a PMOS transistor and an NMOS transistor.
- CMOS is more of a term from process technology.
Why do we use CMOS instead of PMOS and NMOS?
An advantage of CMOS over NMOS logic is that both low-high and high-low output transitions are fast since the on-state (PMOS) pull-up transistors are in contrast to the load resistors in NMOS logic have a low resistance. In addition, the output signal oscillates the full voltage between low and high rail.
NMOS ni msingi wa aina ya n na substrate ya aina ya p, wakati PMOS ni msingi wa aina ya p na substrate ya aina ya n. Katika NMOS, wabebaji ni elektroni, wakati katika PMOS wabebaji ni mashimo. CMOS ni mchanganyiko wa NMOS na PMOS. Teknolojia ya CMOS hutumia nishati kidogo kufanya kazi kwa pato moja na inazalisha kelele kidogo wakati wa kazi. Hebu angalia katika maelezo. Ni nini NMOS? NMOS (NMOSFET) ni aina ya MOSFET. NMOS transistor inajumuisha chanzo cha aina ya n na mtiririko na substrate ya aina ya p. Wakati voltage ni kutumika kwa lango, mashimo katika mwili (p-aina substrate) ni kuendeshwa mbali na lango. Hii inaruhusu malezi ya channel n-aina kati ya chanzo na drain, na sasa ni uliofanywa kutoka elektroni kutoka chanzo kwa drain kupitia induced channel n-aina. Lengo la logic ni kwamba vifaa vya digital vinavyoweza kuunganishwa na NMOS vinaweza kuunganishwa na vifaa vya NMOS. Kuna njia tatu za uendeshaji katika NMOS inayoitwa cut-off, triode na saturation. NCS ni rahisi kubuni na kutengeneza. Mzunguko na milango ya mantiki ya NMOS, hata hivyo, hutumia nguvu ya static wakati mzunguko ni idle, kwani mtiririko wa sasa wa DC kupitia mlango wa mantiki wakati pato ni la chini. PMO ni nini? PMOS (pMOSFET) ni aina ya MOSFET. PMOS transistor ina chanzo cha aina ya p na drain na substrate ya aina ya n. Wakati voltage chanya ni kutumika kati ya chanzo na mlango (mvutano hasi kati ya mlango na chanzo), p-aina ya njia na polarities kinyume ni kuundwa kati ya chanzo na mfereji. Mtiririko hupitishwa kupitia mashimo kutoka chanzo hadi mfereji kupitia kituo cha aina ya p. Voltage ya juu kwenye lango husababisha PMOS kutoongoza, wakati voltage ya chini kwenye lango husababisha kuendesha. Logic gates na vifaa vingine digital kutekelezwa kwa kutumia PMOS lazima kuwa PMOS mantiki. Teknolojia ya PMOS ni ya bei nafuu na ina kinga nzuri dhidi ya kuingiliwa. CMOS ni nini? Complementary Metal Oxide Semiconductor (CMOS) ni teknolojia ya mzunguko jumuishi. CMOS ni teknolojia ya kuunganisha microprocessors, microcontrollers, RAM, na vifaa vingine vya digital. Teknolojia ya CMOS pia hutumiwa kwa nyaya mbalimbali za analog kama vile sensorer za picha (CMOS sensorer), waongofu wa data na transceivers zilizounganishwa sana kwa aina nyingi za mawasiliano. NMOS ni transistor ya aina ya n, ambayo ina substrate ya aina ya p. Kwa mfano, ikiwa voltage ya juu inatumika kwa mlango, NMOS itafanya kazi, lakini ikiwa voltage ya chini inatumika kwa mlango, NMOS itafanya kazi. NMOS ni aina ya transistor ya N-type ambayo ni sawa na PMOS, ambayo ni sawa na NMOS, ambayo ni sawa na PMOS, ambayo ni sawa na N-type transistor. PMOS ni msingi wa p-source na drain. PMO: Vipuli vya kubeba ni mashimo Wakati voltage ya juu ni kutumika kwa mlango, PMOS si kuongoza. - Vifaa vya PMOS ni chini ya kuathiriwa na kuingiliwa kuliko vifaa vya NMOS. PMOS ni transistor ya aina ya P. "CMO (Complementary Metal Oxide Semiconductor Transistor) ni kifaa cha kuunganisha vifaa vya umeme na umeme.""" Mzunguko wa CMOS unajumuisha transistor ya PMOS na transistor ya NMOS. "CMO ni neno la kisasa la ""teknolojia ya mchakato.""" Kwa nini tunatumia CMOS badala ya PMOS na NMOS? Kwa sababu ya kuunganisha kwa NMOS na transistors, transistors za juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu-juu Aidha, ishara ya pato oscillates voltage kamili kati ya chini na juu ya reli.