Title :
A fourth order bandpass delta-sigma A/D converter with input modulation network and digitally programmable passband
Author :
Liu, Huining ; Yu, Xianggang ; Sculley, Terry L. ; Bamberger, Roberto H.
Author_Institution :
Adv. Micro Devices Inc., Austin, TX, USA
Abstract :
A fourth order bandpass ΔΣ A/D converter with input modulation network and digitally programmable noise-shaping has been designed and implemented in a 2 μm double poly, double metal n-well CMOS process. The design uses a switched-capacitor cascade-of-resonators topology with half-delay integrators and achieves a peak SNR of 73 dB over a 0.005π input bandwidth
Keywords :
CMOS integrated circuits; integrated circuit design; integrated circuit noise; sigma-delta modulation; switched capacitor networks; 2 micron; 73 dB; SC cascade-of-resonators topology; SNR; delta-sigma A/D converter; digitally programmable passband; double poly double metal process; fourth order bandpass delta-sigma ADC; half-delay integrators; input modulation network; n-well CMOS process; programmable noise-shaping; switched-capacitor topology; Bandwidth; Delta modulation; Digital modulation; Frequency conversion; Modulation coding; Noise shaping; Passband; Quantization; Semiconductor device noise; Switched capacitor circuits;
Conference_Titel :
Circuits and Systems, 1997. ISCAS '97., Proceedings of 1997 IEEE International Symposium on
Print_ISBN :
0-7803-3583-X
DOI :
10.1109/ISCAS.1997.608748
