ANALOG IC TECHNOLOGIES FOR FUTURE WIRELESS SYSTEMS WRITTEN BY Dr. MATSUZAWA
- SNR estimation in a differential Sample and Hold circuit
SNR decreases with a decrease in signal amplitude. A larger sampling capacitance is needed to keep the same SNR at the low operating voltage. However, it results in an increase in power consumption or decrease of the signal bandwidth. Therefore, the rise of signal bandwidth with moderate SNR is promising. The increase of SNR is becoming quite tough. This issue exists now common in almost all analog circuits, like ADCs, filters, and VCOs.
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