- Tytuł:
- Estimating the noise-related error in continuous-time integrator-based ADCs
- Autorzy:
-
Gosselin, P.
Koukab, A.
Kayal, M. - Powiązania:
- https://bibliotekanauki.pl/articles/398023.pdf
- Data publikacji:
- 2016
- Wydawca:
- Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
- Tematy:
-
noise
white noise
flicker noise
error
accuracy
standard deviation
variance
integrator-based ADC
incremental
Sigma-Delta
szum
szum biały
fliker-szum
błąd
dokładność
odchylenie standardowe
wariancja
ADC - Opis:
- From first-order incremental ΣΔ converters to controlled-oscillator-based converters, many ADC architectures are based on the continuous-time integration of the input signal. However, the accuracy of such converters cannot be properly estimated without establishing the impact of noise. In fact, noise is also integrated, resulting in a random error that is added to the measured value. Since drifting phenomena may make simulations and practical measurements unable to ensure longterm reliability of the converters, a theoretical tool is required. This paper presents a solution to compute the standard deviation of the noise-generated error in continuous-time integrator-based ADCs, under the assumption that a previous measure is used to calibrate the system. In addition to produce a realistic case, this assumption allows to handle a theoretical issue that made the problem not properly solvable. The theory is developed, the equations are solved in the cases of pure white noise, pure flicker noise and low-pass filtered white noise, and the implementation issues implied by the provided formulas are addressed.
- Źródło:
-
International Journal of Microelectronics and Computer Science; 2016, 7, 2; 54-59
2080-8755
2353-9607 - Pojawia się w:
- International Journal of Microelectronics and Computer Science
- Dostawca treści:
- Biblioteka Nauki
Artykuł