In the AD9767(14 bits) datasheet, the figure 68 shows the SNR vs. clock placement.
The AD9763 is 10 bits, and AD9765 is 12 bits.
According to the ADC/DAC SNR formula, the SNR = 6.02*N + 1.72 dB.
From the figure 68, if fix the clock placement, I found the AD9767 has the worse SNR performance.
It is contrary to the formula!
Please help to explain this question, and provide the ENOB spec.
Thanks for your reply.
From Fig 68, could I say that the ENOB of AD9767 is lower than AD9763 ?