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Suggest me some analog circuits for voltage comparison

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test_out

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Hi,

Can any one suggest me some analog circuit for voltage comparation?
This comparator will compare a voltage input and a reference input and give me the logic level?

Thanks
 

muoinhohn

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Re: comparator!

Hi
You can use directly a op-amp with single supply (0V-5V) or use Triger Smith circuit.
muoinho
 

electronics_kumar

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Re: comparator!

test_out said:
Hi,

Can any one suggest me some analog circuit for voltage comparation?
This comparator will compare a voltage input and a reference input and give me the logic level?

Thanks


make IC 741 as a comparator or as schmitt trigger....both will will act as comparator
 

G

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Re: comparator!

Hi

I think that yow will find good information at ths link...

**broken link removed**

Best regards
Pendragon
 

suria3

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Re: comparator!

To design a comparator, you need to have high gain amplifer. To achieve this, design a folded cascode + gain boost architecture. Then this amplifier have to be followed by a digital inverter buffer to determine your output logic level for input voltage comparison.
 

Syukri

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comparator!

In Allen and Holberg book there is many type of comparator..from two stgae to hysterisys even latch type.

i attched a type of comparator

it can compare voltage but how small the different volatge it can compare@resolution is up to u to design and selecting the transistor size.
 

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