**Networks I - Lab Section 6: Mondays ****12.15-3.00 pm**

Lab Assignment 5 - __due:
next Monday, 16 October 2006__

__Lab 5 – The Op-Amp__

** Objectives:** The objective of this lab is to
become familiar with the use of an Op-Amp to perform a signal processing operation. An Op-Amp can be used as both an inverting
amplifier and a non-inverting amplifier.

**Part 1:**

Based on the Op-Amp fundamentals learned in class, solve for
the output of the inverting amplifier in ** Figure 1**. First, write the ideal Op-Amp equations. Next, evaluate KCL at node A and solve for Vout/Vin (which is a
calculation of the gain of the amplifier) leaving the resistors as variables.

*Figure **1** - **Inverting Op-Amp*

Build the circuit in
** Figure 1** using either an LMC662 (

**Part 2:**

Based on the Op-Amp fundamentals learned in class, solve for
the output of the non-inverting amplifier in ** Figure 2**. Using the same steps in part 1, calculate all
the electrical parameters.

Figure 2 - Non-Inverting Op-Amp

Build the circuit in
** Figure 2** again using either an LMC662 (

**Part 3:**

Finally, build all four (4) different Op-Amp circuits you created above in Mentorgraphics, solve for the gains of all your non-inverting and inverting amplifiers

**Part 4: (Extra-Credit)**

Build an electronic circuit using different Op-Amps to create the linear algebra equation below and develop a simulation of it in Mentorgraphics: (see text pages 209-213 for assistance)

Z = 3x - 4y + 2 where output voltage Z depends upon two other variable voltage sources x and y