Duality

An important appropriate of a CMOS ambit is the duality that exists amid its PMOS transistors and NMOS transistors. A CMOS ambit is created to acquiesce a aisle consistently to abide from the achievement to either the ability antecedent or ground. To achieve this, the set of all paths to the voltage antecedent accept to be the accompaniment of the set of all paths to ground. This can be calmly able by defining one in agreement of the NOT of the other. Due to the De Morgan's laws based logic, the PMOS transistors in alongside accept agnate NMOS transistors in alternation while the PMOS transistors in alternation accept agnate NMOS transistors in parallel.