Tut 6 (ELEC2004) This is slightly in advance for students in the Tuesday group. However, after some reading and understand the key technique associated with the Inverting Amplifier configuration the tutorial questions are manageable. In page 493, there are followings

Then the voltage gain is

1) Assuming ideal op amps, find the voltage gains and the input resistance for the following amplifies. Hint, the input resistance is given by Eq. (9.106) of page 493.

2) Assuming ideal op amps, find the voltage gains and the input resistance for the following amplifies.

3) With an ideal op amp and three 10kΩ resistors, using series and parallel combinations, how many different inverting amplifies you can make? 4) What are the largest and the smallest voltage gains in Q3) above? What are the input resistances in the above two cases?

5) 9.37 Design an amplifier having a gain of +75 dB, a phase shift of 180 o, and an input impedance of 500 Ω, real. Attending* of tutorial questions: ___________Mark 5____________________________________1.5 4____________________________________1.25 3____________________________________1.0 2____________________________________0.75 Less than 2 questions_____________________0.5