Artículo
±0.25-V Class-AB CMOS Capacitance Multiplier and Precision Rectifiers
Autor/es | Pourashraf, Shirin
Ramírez Angulo, Jaime Hinojo Montero, José María González Carvajal, Ramón López Martín, Antonio J. |
Departamento | Universidad de Sevilla. Departamento de Ingeniería Electrónica |
Fecha de publicación | 2019 |
Fecha de depósito | 2023-01-20 |
Publicado en |
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Resumen | Reduction of minimum supply requirements is a crucial aspect to decrease the power consumption in VLSI systems. A high-performance capacitance multiplier able to operate with supplies as low as ±0.25 V is presented. It is ... Reduction of minimum supply requirements is a crucial aspect to decrease the power consumption in VLSI systems. A high-performance capacitance multiplier able to operate with supplies as low as ±0.25 V is presented. It is based on adaptively biased class-AB current mirrors which provide high current efficiency. Measurement results of a factor 11 capacitance multiplier fabricated in 180-nm CMOS technology verify theoretical claims. Moreover, low-voltage precision rectifiers based on the same class-AB current mirrors are designed and fabricated in the same CMOS process. They generate output currents over 100 times larger than the quiescent current. Both proposed circuits have 300-nW static power dissipation when operating with ±0.25-V supplies. |
Cita | Pourashraf, S., Ramírez Angulo, J., Hinojo Montero, J.M., González Carvajal, R. y López Martín, A.J. (2019). ±0.25-V Class-AB CMOS Capacitance Multiplier and Precision Rectifiers. IEEE Transactions on Very Large Scale Integration (VLSI) Systems, 27 (4), 830-842. https://doi.org/10.1109/TVLSI.2018.2881249. |
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Pourashraf_ClassCmos.pdf | 6.131Mb | [PDF] | Ver/ | |