Title :
Improved analogue median filter
Author :
Opris, I. ; Kovacs, Gabor
Author_Institution :
Dept. of Electr. Eng., Stanford Univ., CA
fDate :
2/17/1994 12:00:00 AM
Abstract :
Feedback implementations of analogue median filters have a fundamental tradeoff between speed and accuracy. This restriction is relaxed using the proposed novel limiting amplifier, for which the linear range can be set independently of the transconductance. Simulations confirm an improvement by a factor of 3 in the peak systematic error, with no significant effect on the bandwidth
Keywords :
SPICE; active filters; analogue processing circuits; feedback; operational amplifiers; CMOS Orbit process; SPICE; analogue median filter; bandwidth; cascode configuration; feedback implementation; limiting amplifier; linear range; peak systematic error; simulation; transconductance; transconductance amplifiers; transfer characteristic;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19940224
