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???
04/20/10 06:30
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 		 #175148 - RE: I got a review comment
Responding to: ???'s previous message
Manju Arun said:
I want to design a simple signal processing circuit consists of an amplifier and a filter. I got a review comment like just add one buffer between this.

Who made that comment? Why didn't you ask them to explain it?!

In that case, a buffer would be to match the amplifier's output characteristics (impedance, etc) to the filter's input characteristics.
But, since you are designing both the amplifier and the filter, why not just design them to be compatible in the first place?

Does it really have to be a separate amplifier & filter? Can you not design a suitable active filter - ie, an amplifier with a suitably-shaped frequency response?


I would like to get a clear understanding of buffer and its purpose

Then you should ask the person who specifically suggested it!

And the o/p of signal processing circuit would be going to an ADC

The major ADC manufacturers have extensive resources for designing the "input conditioning" for their products - have you looked there?


List of 25 messages in thread
TopicAuthorDate
What is the use of buffer?            01/01/70 00:00      
   what is ...            01/01/70 00:00      
      LPF stage            01/01/70 00:00      
         Not helpful            01/01/70 00:00      
            Not talking on rogowski coil            01/01/70 00:00      
               Analogue filter design            01/01/70 00:00      
   Application Dependant...            01/01/70 00:00      
      Let me make it clear            01/01/70 00:00      
         RE: I got a review comment            01/01/70 00:00      
   You need to be more specific            01/01/70 00:00      
      "Buffer" can be used in several contexts            01/01/70 00:00      
         So it is an input buffer for impedance matching            01/01/70 00:00      
            You really should ask the one who said it!            01/01/70 00:00      
               Does it mean that the delay matching buffer not required            01/01/70 00:00      
                  What do you think?            01/01/70 00:00      
                     I think            01/01/70 00:00      
                        Right.            01/01/70 00:00      
                           one doubt            01/01/70 00:00      
                              Already answered            01/01/70 00:00      
                              Buffers...            01/01/70 00:00      
   It depends...            01/01/70 00:00      
   Peak to Peak is varying            01/01/70 00:00      
      Load regulation in generators?            01/01/70 00:00      
      Then put a filter in front of it!            01/01/70 00:00      
      So you're amplifying the noise?!            01/01/70 00:00      

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