Brokaw cell bandgap reference

[ronanchang]

brokaw cell

Does the brokaw-cell bandgap reference need the startup circuit??
Thanks

 

[jc2]

brokaw bandgap

yes, a start up circuit is necesary

go to chapter 4 in the Gray book, and read
self bias subsection

 

[sunking]

brokaw bandgap reference

Yes, it is needed.
**broken link removed**

 

[xwcwc1234]

startup cell band gap

To sunking,
It is for bipolar version bandgap. Is there any similiar circuits for CMOS bandgap ?

 

[Chethan]

brookaw cell based bandgap reference

yes.
the brokaw's arrow BGR does require a startup.
on initialized, the BGR can be in any two states, either in a zero current state or in perfect operating state(if ur design is correct). If the BGR is in zero current state then it will not work. Hence to eliminate that state u require a startup block