Mayank wrote on Dec 8th, 2009, 6:15am:Yes All Mismatches, offsets, noise are considered in an industrial standard BG Design........
There's math behind everything. Search some papers / reading material on Voltage References, you will find it.................
Thanks,Mayank for detail reply.
Should I write some equations about these nonideal impact on the bandgap'performance before designing the bandgap, and then design the circuit according to these equations? Is it all right?
Can you give me some paper about it? Thank you!
raja.cedt wrote on Dec 9th, 2009, 2:18am:...What i feel is you have to drive mosfets rather than resisters, in case you are using mosfet current sources then better to chose opamp based on psrr and systamatic offset point of view. So generally pmos current sources are driven by opamp whose load is pmos so as to get good psrr. Better use this pap
.V. Gupta, G. A. Rincon-Mora, and P. Raha, "Analysis .........
Thanks, raja.cedt .
So , I first study available OPAMP'PSRR and offset,and then select an OPAMP according to these and the desired OPAMP'specification, is it all right???
But how to identify the OPAMP'PSRR and Offset according to the bandgap specification???? Some papers or materials are expected!!!
Thanks!!!!!