Lec12 MOS Transistors

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Transcript of Lec12 MOS Transistors

COMPARATOR

Basic ELECTRONICS (2+1)ENGR MUHAMMAD SHAKEEL AKRAMELECTRONICS ENGINEERING FICT, BUITEMS.

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3 MOS TRANSISTORS

4MOS TRANSISTROS METAL OXIDE SEMICONDUCTOR TRANSISTORVoltage controlled switch Are of tow types Enhancement MOSNo structural channel To operate nMOS positive VGS is applied

5MOS TRANSISTROS METAL OXIDE SEMICONDUCTOR TRANSISTORVoltage controlled switch Are of tow types Depletion MOSStructural channel To operate nMOS negative VGS is applied

6MOS transistorsThree terminalsGate Drain SourceTwo types nMOSpMOS

7CMOSComplementary MOSTechnology to construct ICs.Allow high density of logical functionspMOSUsed to make pull up network (PUN)In PUN + suggests series and . parallel Passes zero (ground)0 to gate will on1 to gate will offnMOSUsed to make pull down network(PDN)In PDN . suggests series and + parallel Passes one (Vcc)0 to gate will off1 to gate will on

8CMOSNOT gate X = A

9CMOSAND gate

X = A + BNAND gate

X = A . BOR gate

X = A . BNOR gate

X = A + BXOR gate

X = (A + B) . (A + B)XNOR gate

X = (A + B) . (A + B)

10A/D CONVERSION CIRCUITAnalog to digital conversionWhich converts analog data into digital

11D/A CONVERSION CIRCUITDigital to analog conversionWhich converts digital data into analog

12A/D and D/A CONVERSION CIRCUIT

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