Abstract
Commonly used elementary circuits like single-transistor amplifier stages, the differential pair, and current mirrors basically exploit the transconductance property of transistors. This paper aims at finding all elementary transconductance-based circuits. For this purpose, all graphs of two-port circuits with one or two voltage controlled current sources are generated systematically. This results in 150 graphs of "finite transactance two-port circuits" with at least one nonzero transmission parameter. Each of them can be implemented in various ways using transistors and resistors, covering many commonly required types of two-ports. To illustrate the usefulness of the technique several alternative circuit implementations for current amplifiers and voltage followers are generated. A new wide-band low-noise amplifier generated with the technique was realized in 0.35-?m CMOS.
Original language | English |
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Pages (from-to) | 1039-1053 |
Number of pages | 15 |
Journal | IEEE transactions on circuits and systems |
Volume | 48 |
Issue number | 11 |
DOIs | |
Publication status | Published - Nov 2001 |
Keywords
- Computer Aided Design
- circuit synthesis
- circuittopology
- systematic circuit generation
- transconductor
- voltage-controlled current source
- EWI-14346
- CODEN-ICSPE5
- METIS-205988
- IR-43145
- Analog circuit design