Due Monday 2018-04-16 at the start of class.
Draw the small-signal model of the schematic.
The third stage, the emitter-follower is removed from the small-signal model.
The output of the model \(v_o\) and node
D6corresponds to node number
4in the schematic.
For the purposes of this analysis, make set the value of schematic resistor
Since this is a differential input situation, use the “differential mode half-circuit” technique to deal with the input differential pair. Node
3will therefore be grounded.
It is easy to find the Gm's if you find the short-circuit current thru a wire from node
To get a start on the next homework, build both the transistor-level schematic and the small-signal model in LTspice. Monday will have a few techniques for simulating the open-loop parameters of opamps.