raghu_eee
Newbie level 4
comparators offset cancellation techniques
Can any1 suggest me a good offset cancellation technique for a comparator(with a 3 stage preamplifier followed by a latch).
I am currently using Input Offset storage technique (IOS), but the offset cap value become very big as it has to be much greater than input diff parasitic cap value. Hence I observe an error because of capacitive division. This error is also input dependent.
Thanks in advance for your help.
Can any1 suggest me a good offset cancellation technique for a comparator(with a 3 stage preamplifier followed by a latch).
I am currently using Input Offset storage technique (IOS), but the offset cap value become very big as it has to be much greater than input diff parasitic cap value. Hence I observe an error because of capacitive division. This error is also input dependent.
Thanks in advance for your help.