op-amp
Subject and UNIT: Linear Integrated Circuits: Unit II: Characteristics of Op-amp
As mentioned earlier, the compensating network is connected to the system externally to alter the response as per the requirement. There are three such external compensation techniques used in practice. 1) Dominant pole compensation 2) Pole-Zero compensation 3) Feed-forward compensation
Op-amp
Subject and UNIT: Linear Integrated Circuits: Unit II: Characteristics of Op-amp
Consider the system with three break or corner frequencies. This is possible in practice due to the capacitive component produced by the various number of stages.
Subject and UNIT: Linear Integrated Circuits: Unit II: Characteristics of Op-amp
As mentioned earlier, op-amps are rarely used in the open loop configuration. Due to its use in closed loop configuration, it is necessary to study the effect of feedback on the circuit stability.
Working Principle, Waveform, Circuit Diagram, Applications, Solved Example Problems | Operational amplifier
Subject and UNIT: Linear Integrated Circuits: Unit II: Characteristics of Op-amp
The circuit which produces the differentiation of the input voltage at its output is called differentiator. The differentiator circuit which does not use any active device is called passive differentiator.
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Subject and UNIT: Linear Integrated Circuits: Unit II: Characteristics of Op-amp
The integrator circuit can be obtained without using active devices like op-amp, transistors etc. In such a case an integrator is called passive integrator.
Working Principle, Circuit Diagram, Solved Example Problems | Operational amplifier
Subject and UNIT: Linear Integrated Circuits: Unit II: Characteristics of Op-amp
Similar to the summer circuit, the subtraction of two input voltages is possible with the help of op-amp circuit, called subtractor or difference amplifier circuit.
Working Principle, Circuit Diagram, Applications, Solved Example Problems | Operational amplifier
Subject and UNIT: Linear Integrated Circuits: Unit II: Characteristics of Op-amp
As the input impedance of an op-amp is extremely large, more than one input signal can be applied to the inverting amplifier. Such circuit gives the addition of the applied signals at the output. Hence it is called summer or adder circuit.
Working Principle, Circuit Diagram, Applications, Solved Example Problems | Operational amplifier
Subject and UNIT: Linear Integrated Circuits: Unit II: Characteristics of Op-amp
Since A is measured in ohms, it is more appropriate to denote gain by the symbol R. Because of this, I-V converters are also called transresistance amplifiers.
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Subject and UNIT: Linear Integrated Circuits: Unit II: Characteristics of Op-amp
According to the connection of load there are two types of V to I converters : Floating type and Grounded type.
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Subject and UNIT: Linear Integrated Circuits: Unit II: Characteristics of Op-amp
A circuit in which the output voltage follows the input voltage is called voltage follower circuit.
Op-amp
Subject and UNIT: Linear Integrated Circuits: Unit II: Characteristics of Op-amp
Key Point Remember that the non-inverting amplifier always amplifies voltage at its non-inverting terminal i.e. VB by (l + Rf /R1) times.
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Subject and UNIT: Linear Integrated Circuits: Unit II: Characteristics of Op-amp
An amplifier which amplifies the input without producing any phase shift between input and output is called non-inverting amplifier.