Title :
A new background calibration method for precise mismatch detection of a pipelined ADC
Author :
Serizawa, Yoshimasa ; Tayama, Jun ; Yasuda, Akira
Author_Institution :
Eng. Res. Course, Hosei Univ., Tokyo
Abstract :
A background method for precise mismatch detection is proposed. This technique uses a correlation between selection-codes and the output of DAC, which corrects all element errors in the internal DAC of a pipelined ADC. The proposed mismatch detection method realizes background mismatch detection without interrupting conversion sequence and reduces an effect of quantization errors. Simulation results applying the proposed method to the 14-bits pipelined ADC show 19dB SNDR and 23dB THD improvement
Keywords :
analogue-digital conversion; calibration; digital-analogue conversion; 14 bit; background calibration; background mismatch detection; internal DAC; pipelined ADC; Analog-digital conversion; Calibration; Energy consumption; Error correction; Image processing; Image resolution; Low voltage; Manufacturing; Quantization; Signal to noise ratio;
Conference_Titel :
Circuits and Systems, 2005. 48th Midwest Symposium on
Conference_Location :
Covington, KY
Print_ISBN :
0-7803-9197-7
DOI :
10.1109/MWSCAS.2005.1594274
