Title :
Fast compensation of analog to digital converters
Author :
Kelso, G.M. ; Hummels, D.M. ; Irons, E.H.
Author_Institution :
Maine Univ., Orono, ME, USA
Abstract :
Much research has been done in characterizing error mechanisms and compensating Analog to Digital Converters (ADCs). The process of calibrating the ADCs which evolved from this previous research has generally involved exciting the ADC with as many as 100 different single-tone signals. This paper explores the process and results of calibrating an ADC with as few as two wideband signals. Models of dynamic errors are developed using a harmonic based non-iterative approach. Hardware results show error models capable of compensating the ADC over the full Nyquist band. Simulation results confirm the validity of the algorithm
Keywords :
analogue-digital conversion; calibration; error analysis; error compensation; ADC calibration; dynamic errors; error mechanisms; error models; fast compensation; full Nyquist band; harmonic based noniterative approach; two wideband signals; Analog computers; Analog-digital conversion; Calibration; Computer errors; Error correction; Frequency dependence; Hardware; Iron; Signal processing; Signal resolution;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1999. IMTC/99. Proceedings of the 16th IEEE
Conference_Location :
Venice
Print_ISBN :
0-7803-5276-9
DOI :
10.1109/IMTC.1999.777063
