Due Monday 20180416 at the start of class.
1. Opamp model
Find the numerical values of the smallsignal parameters G_{m1}, R_{1}, G_{m2}, and R_{2} shown in Smallsignal opamp model that correspond to your discrete opamp of Discrete opamp schematic.
Draw the smallsignal model of the schematic.

The third stage, the emitterfollower is removed from the smallsignal model.

The output of the model \(v_o\) and node
D6
corresponds to node number4
in the schematic. 
For the purposes of this analysis, make set the value of schematic resistor
R2
to zero. 
Since this is a differential input situation, use the “differential mode halfcircuit” technique to deal with the input differential pair. Node
3
will therefore be grounded. 
It is easy to find the G_{m}'s if you find the shortcircuit current thru a wire from node
2
toGND
or node4
toGND
.
To get a start on the next homework, build both the transistorlevel schematic and the smallsignal model in LTspice. Monday will have a few techniques for simulating the openloop parameters of opamps.
2. Notes
As always, ask questions over the Slack #electronics channel.
Hand in your work on ENGINEERING PAPER:^{[1]}

One side of writing per page.

One column of intermixed schematic, math, and text.

Nearzero crossouts or erase marks. (you have plenty of paper!)^{[2]}