| Autor: | Juan Antonio Gómez Galán, Antonio Torralba, J. Tombs, Ramon G. Carvajal, Jaime Ramirez-Angulo, F. Munoz |
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| Rok vydání: | 2003 |
| Předmět: |
Engineering
business.industry Transistor Electrical engineering Biasing Hardware_PERFORMANCEANDRELIABILITY Bipolar transistor biasing Surfaces Coatings and Films law.invention Threshold voltage CMOS Hardware and Architecture law Signal Processing Hardware_INTEGRATEDCIRCUITS Electronic engineering Operational amplifier business Low voltage Voltage |
| Zdroj: | Analog Integrated Circuits and Signal Processing. 36:69-77 |
| ISSN: | 0925-1030 |
| Popis: | Two new class AB output stages for CMOS op-amps are proposed with accurate quiescent current control. The second proposed stage also provides accurate control of the minimum current through the output transistors. The proposed stages can be operated with a supply voltage close to a transistor threshold voltage. A dynamic biasing scheme allows them to operate in a wide range of supply voltages. Using these stages two opamps have been designed using a 0.8 μm CMOS technology. Experimental results show a unity gain frequency of 15 MHz with 290 μA of quiescent current and a 10 pF load, using a 1.5 V single voltage supply. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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