Title :
Multibit ΔΣ ADC with mixed-mode DAC error correction
Author :
Kiss, Péter ; Moon, Un-Ku ; Steensgaard, Jesper ; Stonick, J.T. ; Temes, Gábor C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA
Abstract :
A mixed-mode error correction scheme is described for multibit ΔΣ ADCs with resistor-string and switched-capacitor DACs. The correction circuit uses a simple calibration ADC and digital filtering. It operates in the background and remains effective even for very low oversampling ratios
Keywords :
calibration; error correction; sigma-delta modulation; switched capacitor networks; calibration ADC; digital filtering; mixed-mode DAC error correction; multibit sigma-delta ADC; oversampling ratios; resistor-string DACs; switched-capacitor DACs; Calibration; Circuits; Digital filters; Error correction; Filtering; Finite impulse response filter; Linearity; Moon; Quantization; Transfer functions;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921847
