how generate different voltage reference?

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chunlee

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i had design a bandgap voltage with the output voltage almost 1.2v. how can i use the bandgap voltage to generate different voltages? such as 1.3v, 0.8v and so on.

my vdd supply is 1.8v.

Thank you for your help.
 

use cascode structures for generating further voltage levels. like you generate different current from a single Iref using current mirroring.
 

Pls refer to the picture.
 

change your BG structure and change the res value you can get different reference voltage.
 

First V2I,than I2V.then you can get the voltage you want.
 

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