Title :
A 10 b 120 MSamples/s multiple sampling, single conversion CMOS A/D converter for I/Q demodulator
Author :
Eklund, J.-E. ; Arvidsson, R.
Author_Institution :
Dept. of Phys., Linkoping Univ., Sweden
Abstract :
We present a filter that estimates the signals at time Tm=T(n+1/2), where T=1/fs. Then two filters are needed, one I- and one Q-filter. There exists a class of transversal filters that can be implemented in the sampling unit as an analog filter. The filtering is done in the sampling operation, and by decimating the signal to the base band the A/D conversion can be done at low speed. We have investigated the quality of an implementation in a double-metal single-poly 0.8 /spl mu/m CMOS-process.
Keywords :
CMOS integrated circuits; analogue-digital conversion; demodulators; signal sampling; 0.8 micron; 10 bit; I-filter; I/Q demodulator; Q-filter; analog filter; double-metal single-poly CMOS process; multiple sampling single conversion A/D converter; transversal filter; CMOS process; Capacitors; Clocks; Frequency; Jitter; Radar; Sampling methods; Signal sampling; Switches; Transversal filters;
Conference_Titel :
Solid-State Circuits Conference, 1996. Digest of Technical Papers. 42nd ISSCC., 1996 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-3136-2
DOI :
10.1109/ISSCC.1996.488625
