Homework No. 1 – Op Amps
Electronics I
Homework Quiz: See website for quiz date.
Reading Assignment: Chapters 1 through 4 in “Microelectronic Circuits,” by Adel S. Sedra and
Kenneth C. Smith.
1. Exercises 2.5 (page 65)
2. Exercises 2.6 (page 65)
3. Exercises 2.17 (page 80)
4. Problem 2.16 (page 110)
5. Problem 2.25 (page 111)
2
3
4
5
6
6. Consider the inverting amplifier with the ideal op amp shown below. Derive vout as a function
of vin , RS and RF ,
RF
RS
vin
vout
7. Now, replace the ideal op amp with the following representation of an op amp. This is a more
sophisticated model of an op amp, but it still does not consider offset voltage or input offset
bias current. Derive vout as a function of vin , RS , RF . Rin , Ro , and A.
Rin
Ro
A (v+-v- )
8. For the expression derived in problem 2, let Rin → ∞, Ro → 0, and A → ∞. Discuss your
result in the context of problem 6.
7
8
9
10