DocumentCode
1185776
Title
Offset-compensated low power current comparator
Author
Palmisano, G. ; Palumbo, Gaetano
Author_Institution
Dipartimento Elettrico Elettronico e Sistemistico, Catania Univ.
Volume
30
Issue
20
fYear
1994
fDate
9/29/1994 12:00:00 AM
Firstpage
1637
Lastpage
1639
Abstract
A new current comparator based on a folded-cascade amplifier is presented. It has an excellent sensitivity of 20 nA and provides offset compensation avoiding clock-feedthrough errors. The circuit dissipates only 30 μW and achieves a switching time better than 30 ns with a 0.5 μA input step current. Moreover, the bias current and the input impedance are well-controlled parameters
Keywords
cascade networks; comparators (circuits); compensation; 0.5 muA; 20 nA; 30 muW; 30 ns; bias current; circuit; clock-feedthrough errors; current comparator; folded-cascade amplifier; input impedance; offset compensation; power dissipation; sensitivity; step current; switching time;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19941119
Filename
328510
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