Low-Voltage Analog Circuits Based on Wideband Capacitive Coupling

  • Authors:

  • Jaime Ramírez-Angulo;Carlos Urquidi;Ramon G. Carvajal;Antonio Torralba;Antonio J. Lopez-Martin

  • Affiliations:

  • Klipsch School of Electrical and Computer Engineering, New Mexico State University, Las Cruces, NM 88003, USA. jramirez@nmsu.edu;Klipsch School of Electrical and Computer Engineering, New Mexico State University, Las Cruces, NM 88003, USA. urquidi@nmsu.edu;Dpto. de Ingeniería Electrónica, Escuela Superior de Ingenieros, Universidad de Sevilla, Camino de los Descubrimientos E-41092 Sevilla, Spain. carvajal@gte.esi.us.es;Dpto. de Ingeniería Electrónica, Escuela Superior de Ingenieros, Universidad de Sevilla, Camino de los Descubrimientos E-41092 Sevilla, Spain. torralba@gte.esi.us.es;Department of Electrical and Electronic Engineering, Public University of Navarra, Campus Arrosadía. E-31006, Pamplona, Spain. antonio.lopez@unavarra.es

  • Venue:
  • Analog Integrated Circuits and Signal Processing
  • Year:
  • 2003

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Abstract

A technique for wideband low-voltage analog circuit operation based on capacitive signal coupling is discussed. Circuits based on this technique do not show the GB degradation of other low-voltage approaches based on floating-gate transistors. The technique is validated with simulations of a new CMOS mixer and experimental results of a test chip in a 0.5 μm CMOS technology.