Hi Juzer,
How do you interface the transducer with stethoscope's chest piece? This design should be similar to audio amplifier, except you may only need audio range from 20-2000Hz, instead of typical 20-20000Hz audio range.
Enclosed are some of application…
Hello Takumi-san
SINAD is the ratio of RMS signal amplitude to the TOTAL sum of all spectral components. In Figure 21, you must add all spectral components (most are around -150dB, but many near the fundamental are higher). Adding all of these together…
Hi Fabio,
For the ADS1278, the noise with shorted inputs closely predicts the resulting SNR. Figure 46 in the datasheet shows how noise and THD change with respect to the CLK frequency.
Noise is about the same, and THD increases by about 3dB. With Vref…