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multiple band gap references ?

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nschutten

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When using multiple analog cells in an IC (e.g. when making an RF transceiver), is it more common to use one BGR to feed all required biases or does it make sense to use multiple BGR in certain conditions (and if so, what would be a reason to do so)?

Or would this mainly depend on if the analog IP blocks already have their own BGR built in and should one just be pragmatic in this and use whatever is readily available?
 

I would say the second.

If you have IP blocks already with their own bgr, use it to save time. Otherwise, one for all.
 

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    nschutten

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In an RF transceiver you might want multiple references & seperate supplies to reduce noise.
 

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    nschutten

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can any one specify a good BGR circuit in cmos technology
 

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