A. Rodriguez-Perez

Publications (2)0 Total impact

• Conference Proceeding: A low-power reconfigurable ADC for biomedical sensor interfaces

  A. Rodriguez-Perez, M. Delgado-Restituto, F. Medeiro, A. Rodriguez-Vazquez
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  ABSTRACT: This paper presents a 12-bit low-voltage low-power reconfigurable Analog-to-Digital Converter (ADC). The design employs Switched Capacitor (SC) techniques and implements a Successive Approximation (SA) algorithm. The ADC can be tuned to handle a large variety of biopotential signals, with digitally selectable resolution and input signal amplitude. It achieves 10.4-bit of effective resolution sampling at 56 kS/s, with a power consumption below 3 ¿W from a 1 V voltage supply.
  Biomedical Circuits and Systems Conference, 2009. BioCAS 2009. IEEE; 12/2009
• Conference Proceeding: An ultra-low power consumption 1-V, 10-bit succesive approximation ADC

  A. Rodriguez-Perez, M. Delgado-Restituto, J. Ruiz-Amaya, F. Medeiro
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  ABSTRACT: An ultra-low power consumption 10-bit rail-to-rail input range successive-approximation Analog-to-Digital Converter (ADC) for sensor network applications is presented. It is designed in a standard 0.13 mum CMOS process technology. The converter consists of a capacitor-based digital-to-analog converter, a two-stage voltage comparator, formed by a pre-amplifier and a dynamic-latch, a passive sample-and-hold circuit, a current reference generator and digital circuitry for switching and control. Post-layout simulations show that the ADC consumes less than 2 muW at a conversion rate of 100 kS/s from a 1 V voltage supply. Proper operation is achieved down to a supply voltage of 0.8 V.
  Electronics, Circuits and Systems, 2008. ICECS 2008. 15th IEEE International Conference on; 10/2008