Help on Opamp stages

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deepakchikane

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Hi Friends,

I am newbie for Opamp Design.

Could you please help me with the Opamp Different stages advantages/Disadvantages
Single stage, double stage and Triple stage.

Which would be good? Why?



Regards,
DC
 

deepakchikane said:
I want to measure differential signal.
Click to expand...

Normally a long-tail pair is the first stage in an op amp. It is able to perform the function of a differential detector, with a similar principle to this Wheatstone bridge.



Notice both sources are positive polarity. However the differential reading is not necessarily always positive.

The long-tail pair may be all the stages you need to measure your differential signal. Additional stages contain current mirrors, and a half-bridge which must be biased so it sinks or sources the proper current through a load, in order to deliver the correct voltage.
 

deepakchikane said:
Hi Friends,

I am newbie for Opamp Design.

Could you please help me with the Opamp Different stages advantages/Disadvantages
Single stage, double stage and Triple stage.

Which would be good? Why?



Regards,
DC
Click to expand...

Have you tried to read Baker or Razavi? Many things are explained there.
 

There is a classic set of books that give a lot of info on
OpAmps, great bedtime reading, authors Toby, Graeme,
Huelsman. ebay is a source or the other used book sellers.

There are 5 titles total,m here are three of them -




The first and third titles most important.


Regards, Dana.
 

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