Title :
A BiCMOS analog adaptive filter
Author :
Fichtel, J. ; Hosticka, Bedrich ; Sieber, Peter
Author_Institution :
Fraunhofer Inst. of Microelectron. Circuits & Syst., Duisberg, Germany
Abstract :
A fully analog adaptive filter in BiCMOS technology, based on a given linear LMS (least-mean-square) adaption algorithm, is discussed. In the prototype filter the algorithm is realized using a combination of MOS switched-capacitor techniques and bipolar translinear cells for multiplications. Time sharing of op amps and multipliers saves area and power and is suitable for applications requiring a moderate number of filter taps (L>
Keywords :
BIMOS integrated circuits; active filters; adaptive filters; linear integrated circuits; BiCMOS; MOS switched-capacitor techniques; analog adaptive filter; bipolar translinear cells; least-mean-square; linear LMS adaption algorithm; op amps; time-shared operation; Adaptive filters; BiCMOS integrated circuits; Capacitors; Clocks; Convergence; Convolvers; Correlators; Delay lines; Echo cancellers; Prototypes;
Conference_Titel :
Solid-State Circuits Conference, 1990. Digest of Technical Papers. 37th ISSCC., 1990 IEEE International
Conference_Location :
San Francisco, CA, USA
DOI :
10.1109/ISSCC.1990.110196
