Design of a reusable rail-to-rail operational amplifier
Resumen:
This paper presents a reusable rail-to-rail operational amplifier. The unity-gain bandwidth can be tuned from 7.5 kHz to 1.5 MHz with total quiescent consumption ranging from 42 nA to 27.5 /spl mu/A with a 2 V supply voltage. A novel rail-to-rail architecture, proposed by Duque-Carrillo et al., and a low-power low-voltage class AB output stage, proposed by Silveira et al., are integrated to achieve an opamp that meets the requirements of a wide range of applications. A power optimization design methodology for a given settling time is explored and simulation results are presented.
| 2003 | |
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Integrated circuit design Circuit simulation ELECTRÓNICA |
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| Inglés | |
| Universidad de la República | |
| COLIBRI | |
| https://hdl.handle.net/20.500.12008/21240 | |
| Acceso abierto | |
| Licencia Creative Commons Atribución – No Comercial – Sin Derivadas (CC - By-NC-ND) |
| Sumario: | This paper presents a reusable rail-to-rail operational amplifier. The unity-gain bandwidth can be tuned from 7.5 kHz to 1.5 MHz with total quiescent consumption ranging from 42 nA to 27.5 /spl mu/A with a 2 V supply voltage. A novel rail-to-rail architecture, proposed by Duque-Carrillo et al., and a low-power low-voltage class AB output stage, proposed by Silveira et al., are integrated to achieve an opamp that meets the requirements of a wide range of applications. A power optimization design methodology for a given settling time is explored and simulation results are presented. |
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