p.gholap93
Member
here is some complicated problem i am facing.
I have two DC SHIFTED sine waves-
one with peak to peak amplitude of 5.2V of 1K frequency and other is with 6.4V peak to peak amplitude of the same frequency.
Now i have stored their peak values using simple diode capacitor peak detector circuit i.e. 2.6V and 3.2V.
After that i have fed these peak values to ADC to convert them into their 0 to 255 series.
But the problem is that resolution between them is too low(only 0.6V),of the order of 15 to 20 counts of ADC.
so what would you like to suggest me? Is there any alternative circuit so as to get clear distinction between amplitudes of the two sine waves?
any weired idea will be most welcome
suggest alternative options rather than using 10 bit ADC
I have two DC SHIFTED sine waves-
one with peak to peak amplitude of 5.2V of 1K frequency and other is with 6.4V peak to peak amplitude of the same frequency.
Now i have stored their peak values using simple diode capacitor peak detector circuit i.e. 2.6V and 3.2V.
After that i have fed these peak values to ADC to convert them into their 0 to 255 series.
But the problem is that resolution between them is too low(only 0.6V),of the order of 15 to 20 counts of ADC.
so what would you like to suggest me? Is there any alternative circuit so as to get clear distinction between amplitudes of the two sine waves?
any weired idea will be most welcome
suggest alternative options rather than using 10 bit ADC
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