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A BICMOS analog adaptive filter

: Fichtel, J.; Hosticka, B.J.; Sieber, P.

Institute of Electrical and Electronics Engineers -IEEE-:
IEEE International Solid-State Circuits Conference 1990. Digest of technical papers
New York/N.Y., 1990
International Solid-State Circuits Conference <37, 1990, New York/N.Y.>
Conference Paper
Fraunhofer IMS ()
adaptive filter; analoge Schaltungstechnik; BICMOS; SC-Filter

An analog adaptive filter has been fabricated in BiCMOS technology. The filter combines CMOS sampled-data storage and analog bipolar multiplication. The experimental prototype realizes linear LMS adaption using a four-tap FIR-filter. A chip area of 7.0 mm2 is occupied by the device operating with + - 2.5 V power supplies.