Ramon G. Carvajal
Ramon G. Carvajal
Universidad de Sevilla (Professor at the Electronics Engineering Department)
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The flipped voltage follower: A useful cell for low-voltage low-power circuit design
RG Carvajal, J Ramírez-Angulo, AJ López-Martín, A Torralba, JAG Galán, ...
IEEE Transactions on Circuits and Systems I: Regular Papers 52 (7), 1276-1291, 2005
5272005
Low-voltage super class AB CMOS OTA cells with very high slew rate and power efficiency
AJ López-Martín, S Baswa, J Ramirez-Angulo, RG Carvajal
IEEE Journal of Solid-State Circuits 40 (5), 1068-1077, 2005
2552005
Very low-voltage analog signal processing based on quasi-floating gate transistors
J Ramirez-Angulo, AJ Lopez-Martin, RG Carvajal, FM Chavero
IEEE Journal of Solid-State Circuits 39 (3), 434-442, 2004
2312004
The flipped voltage follower: A useful cell for low-voltage low-power circuit design
J Ramirez-Angulo, RG Carvajal, A Torralba, J Galan, AP Vega-Leal, ...
2002 IEEE International Symposium on Circuits and Systems. Proceedings (Cat …, 2002
1692002
A free but efficient low-voltage class-AB two-stage operational amplifier
J Ramírez-Angulo, RG Carvajal, JA Galán, A López-Martín
IEEE Transactions on Circuits and Systems II: Express Briefs 53 (7), 568-571, 2006
1332006
Low supply voltage high-performance CMOS current mirror with low input and output voltage requirements
J Ramirez-Angulo, RG Carvajal, A Torralba
IEEE Transactions on Circuits and Systems II: Express Briefs 51 (3), 124-129, 2004
1332004
A new family of very low-voltage analog circuits based on quasi-floating-gate transistors
J Ramirez-Angulo, CA Urquidi, R González-Carvajal, A Torralba, ...
IEEE Transactions on Circuits and Systems II: Analog and Digital Signal …, 2003
952003
Low-voltage CMOS op-amp with rail-to-rail input and output signal swing for continuous-time signal processing using multiple-input floating-gate transistors
J Ramirez-Angulo, RG Carvajal, J Tombs, A Torralba
IEEE Transactions on Circuits and Systems II: Analog and Digital Signal …, 2001
832001
A low-power low-voltage OTA-C sinusoidal oscillator with a large tuning range
J Galan, RG Carvajal, A Torralba, F Munoz, J Ramirez-Angulo
IEEE Transactions on Circuits and Systems I: Regular Papers 52 (2), 283-291, 2005
822005
Super class-AB OTAs with adaptive biasing and dynamic output current scaling
JA Galan, AJ Lopez-Martin, RG Carvajal, J Ramirez-Angulo, ...
IEEE Transactions on Circuits and Systems I: Regular Papers 54 (3), 449-457, 2007
762007
Low-voltage CMOS operational amplifiers with wide input-output swing based on a novel scheme
J Ramirez-Angulo, A Torralba, RG Carvajal, J Tombs
IEEE Transactions on Circuits and Systems I: Fundamental Theory and …, 2000
662000
Highly Linear Tunable CMOS Low-Pass Filter
L Acosta, M Jiménez, RG Carvajal, AJ Lopez-Martin, J Ramírez-Angulo
IEEE Transactions on Circuits and Systems I: Regular Papers 56 (10), 2145-2158, 2009
592009
A CMOS transconductor with multidecade tuning using balanced current scaling in moderate inversion
AJ Lopez-Martin, J Ramirez-Angulo, C Durbha, RG Carvajal
IEEE Journal of Solid-State Circuits 40 (5), 1078-1083, 2005
572005
A new class AB differential input stage for implementation of low-voltage high slew rate op amps and linear transconductors
J Ramirez-Angulo, R Gonzalez-Carvajal, A Torralba, C Nieva
ISCAS 2001. The 2001 IEEE International Symposium on Circuits and Systems …, 2001
562001
Floating-gate-based tunable CMOS low-voltage linear transconductor and its application to HF g/sub m/-C filter design
F Muñoz, A Torralba, RG Carvajal, J Tombs, J Ramirez-Angulo
IEEE Transactions on Circuits and Systems II: Analog and Digital Signal …, 2001
562001
Using floating gate and quasi-floating gate techniques for rail-to-rail tunable CMOS transconductor design
JMA Miguel, AJ Lopez-Martin, L Acosta, J Ramirez-Angulo, RG Carvajal
IEEE Transactions on Circuits and Systems I: Regular Papers 58 (7), 1604-1614, 2011
552011
Comparison of conventional and new flipped voltage structures with increased input/output signal swing and current sourcing/sinking capabilities
J Ramírez-Angulo, S Gupta, I Padilla, RG Carvajal, A Torralba, M Jimenez, ...
48th Midwest Symposium on Circuits and Systems, 2005., 1151-1154, 2005
542005
Low-voltage micropower super class AB CMOS OTA
S Baswa, AJ Lopez-Martin, J Ramirez-Angulo, RG Carvajal
Electronics letters 40 (4), 216-217, 2004
532004
Low-voltage high-performance voltage-mode and current-mode WTA circuits based on flipped voltage followers
J Ramirez-Angulo, G Ducoudray-Acevedo, RG Carvajal, A Lopez-Martin
IEEE Transactions on Circuits and Systems II: Express Briefs 52 (7), 420-423, 2005
522005
New low-voltage fully programmable CMOS triangular/trapezoidal function generator circuit
M Kachare, J Ramirez-Angulo, RG Carvajal, AJ Lopez-Martin
IEEE Transactions on Circuits and Systems I: Regular Papers 52 (10), 2033-2042, 2005
512005
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