Title :
"Split-ADC" Digital Background Correction of Open-Loop Residue Amplifier Nonlinearity Errors in a 14b Pipeline ADC
Author :
McNeill, John A. ; Goluguri, Sanjeev ; Nair, Abhilash
Author_Institution :
Dept. of Electr. & Comput. Eng., Worcester Polytech. Inst., MA
Abstract :
The "split ADC" architecture concept is applied to correction of errors due to nonlinearity of an open-loop residue amplifier in a pipeline ADC. Determination of calibration parameters and correction of errors takes place entirely in the background in the digital domain; no interaction with analog circuitry is required. An algorithm exhibiting convergence of calibration parameters in fewer than 100 000 conversions is presented.
Keywords :
adaptive systems; amplifiers; analogue-digital conversion; calibration; error correction; mixed analogue-digital integrated circuits; 14 bit; adaptive systems; analog-digital conversion; calibration parameters; digital background calibration; error correction; mixed analog-digital integrated circuits; nonlinearity errors; open-loop residue amplifier; pipeline ADC; split-ADC; Adaptive systems; Calibration; Circuits; Computer architecture; Computer errors; Convergence; Electronic mail; Error correction; Gain; Pipelines; Analog-digital conversion; adaptive systems; calibration; digital background calibration; mixed analog-digital integrated circuits; pipeline ADC; self-calibrating;
Conference_Titel :
Circuits and Systems, 2007. ISCAS 2007. IEEE International Symposium on
Conference_Location :
New Orleans, LA
Print_ISBN :
1-4244-0920-9
Electronic_ISBN :
1-4244-0921-7
DOI :
10.1109/ISCAS.2007.378334
