yefj
Advanced Member level 4
Hello,In sigma delta we have SQNR based On OSR.
In SAR ADC I need to find the link between the number of bits(number of switches of SAR) and Its potential OSR and SQNR.
The only thing i have in SAR is the convertion time formula belloa
SAR_time_convertion=T_sampling+N*T_switch .
How do i derive from its the F_sample (sampling rate) and signal frequenct Fd?
giving me OSR by fb/(fs*0.5)
I know that the input has some frequency and the sampler of the SAR has frequency too but we have the switches too in there ,how it going to affect it?
Thanks.
In SAR ADC I need to find the link between the number of bits(number of switches of SAR) and Its potential OSR and SQNR.
The only thing i have in SAR is the convertion time formula belloa
SAR_time_convertion=T_sampling+N*T_switch .
How do i derive from its the F_sample (sampling rate) and signal frequenct Fd?
giving me OSR by fb/(fs*0.5)
I know that the input has some frequency and the sampler of the SAR has frequency too but we have the switches too in there ,how it going to affect it?
Thanks.