Elmore Delay

Elmore Delay is an upper bound delay approximation; determines the value of the dominant time constant.

R1

R2

R3

R4

C1

C2

C3

C4

A

B

Delay from A to B: = R1*C1 + (R1+R2)*C2 + (R1+R2+R3)*C3 + (R1+R2+R3+R4)* C4

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