Skip to main content

Op-Amp

     This chapter begins with the study of Differential Amplifiers and then the basic characteristics of Op-Amp such as Offset Voltage and Current, Bias Current, Slew Rate, CMRR, SVRR, etc. Then you have to study about the differences between Ideal and Practical Op-amp. Also, study the model of the practical op-amp which includes Input Resistance and Output Resistance also.
Then comes the most important concept in Op-Amp which is the concept of Virtual Ground. Based on this concept you have to understand the concept of Inverting Amplifier, Non-Inverting Amplifier, Inverting Summer, Non-Inverting Summer, Differentiator, Integrator, Current to Voltage Converter, Voltage Follower, etc. You should be able to solve any random circuit including Op-Amp using this concept.
      Then you have to study the non-linear applications of Op-Amp such as Precision Diode, Half Wave Rectifier, Full Wave Rectifier, Log Amplifier, and Anti-log amplifier. Then using this knowledge we can study the concept of Active Filters in which you have to understand the concept of deriving 3-dB frequency and also the nature of filter by comparing the response at 0 and infinite frequency.
Then comes one of the most important concepts that are positive feedback applications of Op-Amp in the form of Schmitt Trigger and then application of Schmitt Trigger to derive Astable Multivibrator, Mono-stable Multivibrator, and Triangle Wave Generator.
Labels:

Comments

Post a Comment

Popular posts from this blog

Analog Electronics for GATE ECE

Hi Guys, As per the request from many ECE guys for a post regarding Analog Electronics important topics, I am writing this post for them. Analog Electronics is one of the most important subjects for ECE and also since it is a core subject so it becomes much more important that this subject is covered in detail. But many GATE Aspirants are often confused as to what specifically we need to study from this subject as this subject is very vast in itself. This subject accounts for 10-12 marks in GATE exam and is very important if someone wants to pursue higher studies in Electronics domain. So, to reduce the effort we need to target the topics that are specific to GATE. Diode Circuits ECE guys will be very much aware of working of Diode in detail since they would have studied the same in Electronic Devices so they do not need to bother much about it. You can directly start from the current-voltage equation of diode and then proceed to Open Circuit and Short Circuit tests on...
Post a Comment
Read more

Mode of Entrance Exam in India

Earlier, the entrance exams were held on pen and paper but as the technology advanced, the mode of examination changed. Few of the following popular modes in which the exams are held are as follows: Offline Mode  – This is the traditional pen and paper format, in which candidates have to write answer on a paper or OMR sheet. CBT Mode  – Compute based test mode is the most popular mode of entrance exams right now. Here, the candidates have to attempt the exam on a computer and mark answers with the help of a mouse. In some of the exams, candidates even get virtual calculate as well. Online Mode  – Even in online mode the candidates take the exam via computer. However, the only difference is that candidates can take the exam form anywhere and are not restricted to go to a particular center. To take these types of exam, candidates just need to have a computer, good internet connection, and a webcam.
Post a Comment
Read more