Electronics - Operational Amplifiers - Discussion


In order for an output to swing above and below a zero reference, the op-amp circuit requires:

[A]. a resistive feedback network
[B]. zero offset
[C]. a wide bandwidth
[D]. a negative and positive supply

Answer: Option D


No answer description available for this question.

Lohithkumar said: (Sep 21, 2012)  
Correct unless negative supply the output swings only for possitive peak only.

Lucky said: (Jul 7, 2014)  
Any op amp have 2 biasing supplies one is +vcc another one is -vee. Due to these supplies only op_amp might be operate in between +vsat&-vsat.

Bhaskar said: (Aug 19, 2014)  
What is swing and what is Vsaturation?

Hirak said: (Sep 23, 2014)  
What is swing?

Sravan said: (Apr 27, 2016)  

Swing is the difference of maximum output voltage and minimum output voltage.

Maximum possible swing in the output you can have is VDD - VSS, where VDD is most positive voltage and VSS is most negative voltage.

It does not mean that your swing is VDD - VSS, it may be smaller than this. This depends on circuit design.

For CMOS logic family it is VDD - GND. It means CMOS logic family have full voltage swing.

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