Título:
Current-starved inverter cell design trade-offs for single capacitively coupled ring VCOs
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Autor:
Sabaj, Ilan
Bernárdez, Santiago
Valettute, Ignacio
Siniscalchi, Mariana
Bernárdez, Santiago
Valettute, Ignacio
Siniscalchi, Mariana
Tutor:
Tipo de documento:
Ponencia
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Palabras clave:
Ring VCO
Current starving
Multi-phase oscillators
Low-power RF design
Current starving
Multi-phase oscillators
Low-power RF design
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Año de publicación:
2026
Contenido:
Resumen:
This paper presents a comparative study of inverter cell topologies for use in a single capacitively coupled (SCC) ring VCO targeting multi-phase RF applications. Three inverter cells are investigated: nMOS-only (N), pMOS-only (P), and complementary nMOS-pMOS (NP), each implemented with current-starved control for frequency tuning. The cells are designed in 28−nm FD-SOI technology under a common parameterization, ensuring that performance differences arise from intrinsic architectural properties rather than transistor sizing. Simulation results compare frequency tuning range, power consumption, output swing, signal symmetry and phase noise. The N cell achieves the widest tuning range, the NP cell offers better symmetry and the P cell shows limited swing and higher asymmetry but with lower power consumption. These results reveal intrinsic trade-offs between efficiency, signal integrity, and spectral purity, providing practical guidelines for inverter selection in SCC VCO designs.
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EN:
2026 IEEE 17th Latin America Symposium on Circuits and Systems (LASCAS), Arequipa, Peru, 24-27 feb. 2026, pp. 1-5.
Financiadores:
Los autores desean agradecer a CSIC de Universidad de la República, Uruguay.
Citación:
Sabaj, I., Bernárdez, S., Valettute, I. y otros. Current-starved inverter cell design trade-offs for single capacitively coupled ring VCOs [en línea]. EN: 2026 IEEE 17th Latin America Symposium on Circuits and Systems (LASCAS), Arequipa, Peru, 24-27 feb. 2026, pp. 1-5.
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Departamento académico:
Electrónica
Grupo de investigación:
Microelectrónica
Licencia:
Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)
Colecciones:
| Ficheros | Descripción | Tamaño | Formato | ||
|---|---|---|---|---|---|
| SBVS26.pdf | Versión final | 492.61 KB | Adobe PDF |