Bandgap Reference Circuit Question!! Help!!

[hayris]

Hi!

I have some Questions about my circuit. It's a little bit complex for me but I want to analyse it.

IF M3A and M3B are removed from circuit, What can be the possible effects?

https://obrazki.elektroda.pl/64_1301405603.jpg

 

[keith1200rs]

You will get a poor current mirror with just M1/M2 so you end up with a very poor bandgap if you leave out M3A/B.

Keith

 

[hayris]

thank you for help