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Reference VOltage in ADCs (AD9600)

Question asked by Orlando on Jun 22, 2015
Latest reply on Jun 22, 2015 by PMH

In most of ADCs (for instabce AD9600) you can use an external reference voltage (Vref) My question is how samll can this Vref be?

 

For exampl in a GPS receiver you have to put a lot if GAIN in IF (>40dB). If I could work with very low Vref for the ADC (say 0.05v), then I can get rid of a lot of gain prior to the ADC. Is this feasible/possible?

 

If yes, how am I going to obtain a clean and stable 0.05v reference voltage source?

 

BR

 

Orlando

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