1-V quasi constant-gm input/output rail-to-rail CMOS op-amp
In: Analog and mixed-signal IC design and design methodologies, Jg. 36 (2003), Heft 4, S. 161-174
academicJournal
- print, 14 ref
Zugriff:
A CMOS operational amplifier with input/output rail-to-rail range is presented. The circuit operates with a 1-V single supply. It uses dynamically biased input level shifters, controlled by a novel tuning scheme, to extend the input common-mode voltage range from one rail to the other. The tuning circuit takes the total biasing current of the amplifier input stage and, hence, its small-signal response into account. As a result, the total input transconductance variations are lower than ±10% over the entire voltage range. Experimental results on a test-chip fabricated in standard 0.8-μm CMOS technology are given.
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1-V quasi constant-gm input/output rail-to-rail CMOS op-amp
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Autor/in / Beteiligte Person: | CARRILLO, Juan M ; DUQUE-CARRILLO, J. Francisco ; TORELLI, Guido ; AUSIN, José L |
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Zeitschrift: | Analog and mixed-signal IC design and design methodologies, Jg. 36 (2003), Heft 4, S. 161-174 |
Veröffentlichung: | Amsterdam: Elsevier Science, 2003 |
Medientyp: | academicJournal |
Umfang: | print, 14 ref |
ISSN: | 0167-9260 (print) |
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