Title :
A 2.8V 200MHz replicating current comparator for convolutional decoders
Author :
Demosthenous, Andreas ; Taylor, James
Author_Institution :
University College London, London, UK
Abstract :
A BiCMOS replicating current comparator for use in analogue convolutional decoders is described. The circuit operates asynchronously by means of a negative feedback mechanism that provides an accurate virtual ground for current summation and comparison. Measurements showed that the comparator operates in excess of 200MHz, features a wide dynamic range, and consumes 5.8mW from a 2.8V power supply. The active area of the die occupies 0.045mm2in 0.8µm technology.
Keywords :
BiCMOS integrated circuits; Convolutional codes; Dynamic range; Energy consumption; Maximum likelihood decoding; Negative feedback; Power dissipation; Power supplies; Viterbi algorithm; Voltage;
Conference_Titel :
Solid-State Circuits Conference, 2000. ESSCIRC '00. Proceedings of the 26rd European
Conference_Location :
Stockholm, Sweden
