DocumentCode
439528
Title
A 2.8V 200MHz replicating current comparator for convolutional decoders
Author
Demosthenous, Andreas ; Taylor, James
Author_Institution
University College London, London, UK
fYear
2000
fDate
19-21 Sept. 2000
Firstpage
300
Lastpage
303
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;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 2000. ESSCIRC '00. Proceedings of the 26rd European
Conference_Location
Stockholm, Sweden
Type
conf
Filename
1471271
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