In theory operational amplifier have infinite gain

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Unformatted text preview: l operational amplifiers have very large gain, which for a majority of DC applications is sufficient. Later in the course we will learn about the limitations and finite gain bandwidth for AC applications. Because the gain of the operational amplifier is very large, we use negative feedback to control the gain of a given configuration. Once again we will be using Multisim for our simulation purposes in the pre-­‐lab. Pre-­‐Lab Assignment 1. Read lectures notes on amplifiers posted on bspace/Piazza. 2. Read the Section 4-­‐13 (page 188-­‐191) of the textbook (Ulaby and Maharbiz) and learn how to do the transient analysis and steady-­‐state analysis. 3. Complete the pre-­‐lab questions over the next few pages (40 points). 4. Familiarize yourself with the rest of this document before arriving in lab! 5. Read notes on oscilloscope and function generator on Wikipedia and this link. 6. Watch “how to” videos for the oscilloscope and the function generator on youtube. 2 Lab 3: Operational Amplifiers EE43/100 Summer 2013 C. J. Chang-­‐Hasnain Before we start however, we’re going to take a peek at the datasheet for the operational amplifier we will be using throughout this lab, the TLC277. Datasheets contain information pertaining to the functionality, limitations, and practical applications of the IC chip and are indispensible. D a t a s h e e t : h t t p : / / w w w . t i . c o m / l i t / d s / s y m l i n k / t l c 2 7 7 . p d f Now that you have the datasheet, we want to make sure you actually take a peek at it. We will be using the Dual-­‐In-­‐Line package, 8 pin version of the TLC277 in the lab. Draw the circuit diagram of the TLC277 below (i.e. just copy it from the datasheet on page 3 to the space below). This tells us the pin references on the IC with respect to our circuit. Notice that it has two op amps and is hence a “dual” package. P...
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