ashish_soni
Newbie
Hi All,
I am working on 14 bit SAR ADC for biomedical applications with a sampling speed of 5KS/s. The DAC architecture is differential and dynamic range is 1vP-P. My circuit level part is completed and now I am heading towards SNR, SNDR, and other spectral analysis for getting ENOB.
What I know is to do spectral analysis, apply an input signal and take FFT, but don't know which signal to take FFT and get SNR.
I am very much new to this field please do help.
I am attaching a sample image which I am supposed to get after spectral analysis.
[found at www .maximintegrated .com /en/images /appnotes /748 /DI45Fig09 .gif]
I am working on 14 bit SAR ADC for biomedical applications with a sampling speed of 5KS/s. The DAC architecture is differential and dynamic range is 1vP-P. My circuit level part is completed and now I am heading towards SNR, SNDR, and other spectral analysis for getting ENOB.
What I know is to do spectral analysis, apply an input signal and take FFT, but don't know which signal to take FFT and get SNR.
I am very much new to this field please do help.
I am attaching a sample image which I am supposed to get after spectral analysis.
[found at www .maximintegrated .com /en/images /appnotes /748 /DI45Fig09 .gif]
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