Op-amp_lab - Name: Date of lab: _ Lab 7 _ Section number: M...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Name: ______________________________________________ Date of lab: ______________________ Section number: M E 345._______ Lab 7 Precalculations – Individual Portion Op-Amp Lab: Operational Amplifier Circuits Precalculations Score (for instructor or TA use only): _____ / 20 1. Suppose a bunch of 10-kohm resistors are available in the lab. A powered breadboard with DC voltage power supplies of +15 V and 15 V is available, along with a ground post (0 V). Several type 741 op-amps, some switching diodes, and +5 V and 5 V power supplies are also available. Draw a circuit diagram showing how an inverting amplifier with a gain of 1.5 can be constructed with these components only. Use the standard triangle symbol for the op-amp(s), and label the inputs V n and V p . 2. For the above example, draw a rectangle to represent the 8-pin integrated circuit for the type 741 op-amp. Label all eight pins (1 to 8), and draw lines to show how the pins would be wired on a breadboard. Be sure to include the supply voltages! 3. For the same list of components as in Question 1, draw a circuit diagram that clips voltages below 5 V, and clips voltages above +5 V.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Lab 7 Cover Page for Lab Report – Group Portion Op-Amp Lab: Operational Amplifier Circuits Name 1: ___________________________________________________ Section M E 345._______ Name 2: ___________________________________________________ Section M E 345._______ Name 3: ___________________________________________________ Section M E 345._______ [Name 4: ___________________________________________________ Section M E 345._______ ] Date when the lab was performed: ______________________ Group Lab Report Score (For instructor or TA use only) : Lab experiment and results, plots, tables, etc. _____ / 50 Discussion _____ / 20 Neatness & grammar _____ / 10 TOTAL ______ / 80 Comments (For instructor or TA use only) : NOTE: The instructor or TA reserves the right to deduct points for any of the following: Arriving late to lab or leaving before your lab group is finished. Not participating in the work of your lab group (freeloading). Causing distractions, arguing, or not paying attention during lab. Other (at the discretion of the instructor or TA).
Background image of page 2
Op-Amp Lab: Operational Amplifier Circuits Author: John M. Cimbala, Penn State University Latest revision: 23 October 2007 Introduction and Background ( Note : To save paper, you do not need to print this section for your lab report.) An operational amplifier (usually abbreviated op-amp ) is an integrated circuit that amplifies the difference in voltage signal across its input terminals. In a so-called open-loop configuration , without feedback, the output is some multiple (the open loop gain g ) of the difference between the two input voltages, ( o pn Vg VV =− ) . The open loop gain is typically in the 10 5 or 10 6 range, and thus the op-amp easily saturates , even for very small input voltages. In practice, most circuits are built with a feedback loop ( closed-loop configuration ), so that the voltage difference between the negative and positive input terminals is negligible. Some practical circuits which utilize op-amps are presented in the lectures. In this lab, some of these circuits are built and tested on a breadboard. Then, as a practical application, the circuits are used to measure the frequency range of students whistling. In this lab, the industry standard type 741 op-amp is used.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 07/23/2008 for the course ME 345 taught by Professor Staff during the Spring '08 term at Pennsylvania State University, University Park.

Page1 / 9

Op-amp_lab - Name: Date of lab: _ Lab 7 _ Section number: M...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online