We are a small group of people of the department  of "Electricidad y Electrónica" of the University of Valladolid (Spain). Our main research field since year 2000 is the design of analog integrated circuits. Currently, our work is mainly focused on the design of analog to digital converters for wireless and high-speed data communications applications.

People involved

Now:

Jesús Arias	Phd	Professor
Lourdes Enríquez	Phd	Professor
Luis Quintanilla	Phd	Professor
José Vicente	Phd	Professor
Jesús M. Hernández	Phd	Professor
Jokin Segundo	Phd Student	Teaching assistant

Before:

Juan Barbolla	Phd, professor, department head	died on April 2005
David Bisbal	Phd student	Left on Oct 2004
Jacinto San Pablo	Phd student	Left on Feb 2005

Our work

• Low- Voltage circuits
• Switched-Opamp & filter page (English) (Español)
• Sample & Hold circuits
  
• Nyquist-rate ADCs
• 40Ms/s, 10-bit, 12-mW, time-interleaved pipeline ADC for 54Mbit/s wireless-LANs
  
• Design and preliminary results page
• DCIS 2003 (slides)       DCIS 2003 (Proceedings)
  
• JSSC paper
  

• Sigma-Delta ADCs
• High-order stable multibit modulators (TCAS-I paper (2003)) (US Patent)
  
• Sigma-delta DAC linearization techniques (TCAS-I paper (2005)) (US Patent pending)
  
• Continuous-time sigma-delta ADCs
• Complex, 20MHz bandwidth ADC for 54Mbit/s wireless-LANs
  
• Design slides
• SPIE-2005 presentation slides    (Proceedings)
  
• JSCC paper (2005)
  
• Jitter-insensitive, current-mode  ADCs (ES Patent)
  
• DCIS-2004 (Proceedings)
• SPIE-2005 (Proceedings)
  
• Tunable band-pass ADCs for HF radio
• DCIS-2004 (Proceedings)
  
• High-speed ADCs for Gigabit Ethernet (SRC project)
  
• SRC report 2005 (slides)
• SRC report 2006
  

Projects

• U.S.  Semiconductor Research Corporation (SRC) 2004-2006
  
• Title: Delta-Sigma ADCs for High Speed Data Communications
• Task Leader: Juan Barbolla
• Principal investigator: Jesús Arias

• Spain. Ministerio de Educación y Ciencia. 2007-
• Title: Diseño de convertidores Analógico/Digital CMOS de altas prestaciones para sistemas de transmisión de datos.
• Principal investigator: Jesús Arias

Collaborations

• Wireless Research Department. Agere Systems (formerly at Bell Labs, Murray Hill, NJ, USA )
  

• Ethernet Division. Agere Systems Spain (formerly Massana). (Madrid, Spain)