Preliminary Questions

1.

For the circuit in Fig.5.4, calculate the DC voltages at the points labeled X, and the small signal voltage gain. Also calculate R_in and R_o.

2.

For the circuit in Fig.5.7, calculate the DC voltages at the points labeled X, and the open loop small signal voltage gain A_dm. Also calculate R_in and R_o.

3.

For the circuit in Fig.5.7, what feedback resistors would you add for a closed loop gain of 6. (Remember, we want to be able to neglect loading effects from the feedback loop. This limits the size of resistors you can use.)