Aug 21, 2007 #1 Y yalanand Junior Member level 2 Joined Aug 13, 2007 Messages 24 Helped 2 Reputation 4 Reaction score 1 Trophy points 1,283 Activity points 1,453 Hi can anyone explain me the effect of non-linearity of op-amp gain on the performance of ADC ?
Aug 21, 2007 #2 A A.Anand Srinivasan Advanced Member level 5 Joined Oct 15, 2005 Messages 1,792 Helped 257 Reputation 514 Reaction score 39 Trophy points 1,328 Location India Activity points 10,678 Re: Query regarding ADC what type of ADC are you talking about...
Aug 21, 2007 #3 Y yalanand Junior Member level 2 Joined Aug 13, 2007 Messages 24 Helped 2 Reputation 4 Reaction score 1 Trophy points 1,283 Activity points 1,453 Re: Query regarding ADC Sigma delta ADC.. am planning to design 12 Bit sigma delta ADC for 100MHZ
Aug 21, 2007 #4 A A.Anand Srinivasan Advanced Member level 5 Joined Oct 15, 2005 Messages 1,792 Helped 257 Reputation 514 Reaction score 39 Trophy points 1,328 Location India Activity points 10,678 Re: Query regarding ADC are you talking about the integrator formed using the opamp in sigma-delta ADC???? the nonlinearity would be taken care by the feedback loop because it is the one which determines the gain provided the open loop gain is very high....
Re: Query regarding ADC are you talking about the integrator formed using the opamp in sigma-delta ADC???? the nonlinearity would be taken care by the feedback loop because it is the one which determines the gain provided the open loop gain is very high....
Aug 21, 2007 #5 Y yalanand Junior Member level 2 Joined Aug 13, 2007 Messages 24 Helped 2 Reputation 4 Reaction score 1 Trophy points 1,283 Activity points 1,453 Re: Query regarding ADC Yeah.. but how do i take care the non-idealities because of non-linear op-amp gain.. ?
Re: Query regarding ADC Yeah.. but how do i take care the non-idealities because of non-linear op-amp gain.. ?
Aug 21, 2007 #6 A A.Anand Srinivasan Advanced Member level 5 Joined Oct 15, 2005 Messages 1,792 Helped 257 Reputation 514 Reaction score 39 Trophy points 1,328 Location India Activity points 10,678 Re: Query regarding ADC actually it is not at all needed if you are using a opamp with high open loop gain because you are having feedback..... and you will be using it in integrator and so just design or select opamp to have high gain that is all.....
Re: Query regarding ADC actually it is not at all needed if you are using a opamp with high open loop gain because you are having feedback..... and you will be using it in integrator and so just design or select opamp to have high gain that is all.....