Prelab 2, Exercise 4: Integrator (Rf=???)
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* EE122 Prelab 2: Op-amp circuits
* Exercise 4: Integrator
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*You fill in the ??? parameters

Ri In V- ???
Cf V- Out ???
Rf V- Out ???       * set to achieve DC gain of 10 
E1 Out 0 0 V- 100k  * Ideal Op-Amp
Vin In 0 ac 1 pulse(-.5 .5 0 5ns 5ns 500us 1ms)  * 1Vp-p square wave

*---------------------------------
* Transient Analysis & AC Analysis
*---------------------------------
.tran 100us 20ms
.ac dec 20 1 100k
.print ac v(Out) vdb(Out) vp(Out)

*--------
* Options
*--------
.option post

.alter Rf=???
Rf V- Out ???  * set Rf to achieve DC gain of 5 
.alter Rf=???
Rf V- Out ???  * set Rf to achieve DC gain of 1

.end