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Design >> Analog Design >> about op polarity in bandgap reference
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Message started by mists on Jun 9^th, 2014, 7:25am

Title: about op polarity in bandgap reference
Post by mists on Jun 9^th, 2014, 7:25am

the attached pic is bandgap reference from the book "Analog integrated circuit design" 2nd by Johns and Martin. But I feel that the op polarity in the pic is wrong, do you think so. if it is right, may you help me analyse it, thanks!

Title: Re: about op polarity in bandgap reference
Post by raja.cedt on Jun 9^th, 2014, 11:57pm

I guess you are talking about fig 7.13b, Yes it is wrong. you must flip the opamp signs.

Thanks,
Raj.