W11 Homework Solutions
D.
Which circuit will you use that can satisfy all given specifications? Justify
your answer.
Solution:
Specifications state (with circuits adhering in square brackets):
ESD protection(high and low swing)[A,C] (B diodes wrong way around,
D none)
ESD rise time limiting [C] (all others no series resistor)
Flyback protection [B,C] (others has none)
Release time max 2.2ms [B,C] (others has none, p. 139 table, more than
6V yback)
The only circuit that satisfies all specifications is C.
annaabi.ee 
