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What is the main factor contributing to the choice of the operational amplifier?

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What is the main factor contributing to the choice of the operational amplifier?

answer : option (c) positive and negative saturation voltage The output voltage cannot exceed the positive saturation and negative saturation. These saturation voltages (positive and negative saturations ) are specified by an output voltage swing rating of the op – amp for the given values of supply voltage.

What are the characteristics of operational amplifier?

Op-amp characteristics

  • Infinite open-loop gain G = vout / v.
  • Infinite input impedance Rin, and so zero input current.
  • Zero input offset voltage.
  • Infinite output voltage range.
  • Infinite bandwidth with zero phase shift and infinite slew rate.
  • Zero output impedance Rout, and so infinite output current range.
  • Zero noise.
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How are operational amplifiers used in ADC applications?

Op amps are often used as drivers for ADCs to provide the gain and level-shifting required for the input signal to match the input range of the ADC. Some ADCs also generate transient currents on their inputs due to the conversion process, and these must be isolated from the signal source with an op amp.

What are the golden rules for an ideal operational amplifier?

Here are the golden rules of operational amplifiers:

  • 1) Infinite Open Loop Gain.
  • 2) No current flowing through both of the Inputs.
  • 3) Potential Difference between input pins is ZERO.

How a perfect integration is achieved in op-amp?

How a perfect integration is achieved in op-amp? Explanation: In an op-amp integrator the effective input capacitance becomes CF×(1-Av). Where Av is the gain of op-amp. The gain is infinite for ideal op-amp.

What are the basic components of an operational amplifier?

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Operations amplifiers — op-amps for short, are integrated circuits, constructed mostly out of transistors and resistors. These integrated circuits multiply an input signal to a larger output. You can use these components with voltage and current in both DC and AC circuits.

In which type of ADC are two applications of op amps used?

Op Amp Specifications Key to ADC Applications The two most popular applications for ADCs today are in either precision high-resolution measurements or in low distortion high speed systems.