Intermediate Stage is a dual input unbalanced output differential amplifier. The Input Stage is a dual input balanced output differential amplifier which provides most of the voltage gain of amplifier and also establishes the input resistance of op-amp. Important features of opamp compared to normal amplifiers are given below.īlock Diagram of an Opamp Opamp Block Diagram Opamp will amplify only the difference between these two inputs ie (Vp – Vn) or (V+ – V-). It has basically 2 inputs, non-inverting input (Vp or V+) and inverting input (Vn or V-). Opamp is a differential amplifier having very high gain. What makes opamp different from other amplifiers ? By using suitable external feedback components opamp can be used for applications like amplifiers, oscillators, comparators etc. Op-amp is primarily designed for old analog computers, where they were used for computing mathematical functions like addition, subtraction etc. Opamps are building blocks of analog circuitry and is also known as differential amplifier as its output depends on difference between input signals. It can also be used to amplify both DC as well as AC signals. The output stage is generally push-pull or complementary symmetry push-pull amplifier. An operational amplifier is a direct coupled high gain amplifier usually consisting of one or more differential amplifiers followed by a level transistor and an output stage. Opamp is the abbreviation of Operational Amplifier. 7.2.1.1 Advantages of Negative Feedback.6.9 Supply Voltage Rejection Ratio (SVRR).

5.1.1 Characteristics of an Ideal Opamp.1.1 What makes opamp different from other amplifiers ?.

Op amp offset