G
A
Last name: GINÉS ARTEAGA
First name: Antonio José
Procedimiento adaptativo para la estimación de la INL en convertidores analógico-digitales (ADCs).Permite caracterizar y testar los convertidores analógico-digitales mediante la estimación de la No-Linealidad-Integral (Integral-Non-Linearity, INL, en ingl
El objeto de la presente invención es un procedimiento adaptativo para la calibración del offset de comparadores en convertidores analógico-digitales (ADCs). La técnica que implementa permite ajustar mediante un control digital de bajo coste la tensión um
This brief presents a low-cost digital technique for background calibration of comparator offsets in pipeline analog-to-digital converters (ADCs). Thanks to calibration, comparator offset errors above half the stage least-significant bit margin in a unitary redundancy scheme are admissible, thus relaxing comparator design requirements and...
Σ∆ modulators make a clever use of oversampling and exhibit inherent monotonicity, high linearity and large dynamic range but a restricted frequency range. As a result Σ∆ modulators are often the preferred option for sensor and instrumentation. Offset and Flicker noise are usual concerns for this type of applications and one way to...
This work presents a reduced-code strategy for the static linearity self-testing of Vcm -based successive-approximation analog to digital converters (SAR ADCs). These techniques take advantage of the repetitive operation of SAR ADCs for reducing the number of necessary measurements for static linearity testing. In this paper we discuss the...
Analog-to-digital converters based on ΣΔ modulators are used in a wide variety of applications. Due to their inherent monotonous behavior, high linearity, and large dynamic range, they are often the preferred option for sensor and instrumentation. Offset and flicker noise are usual concerns for this type of applications, and one way to minimize...
This paper describes a BIST technique for the static linearity test of Vcm-based successive-approximation analog-to-digital converters (SAR ADCs). We discuss the application of reduced-code techniques for the Vcm-based SAR ADC topology and present a practical on-chip implementation based on an embedded incremental ADC. Simulation results are...
This paper presents a simulation-based method for evaluating the static offset in discrete-time comparators. The proposed procedure is based on a closed-loop algorithm which forces the input signal of the comparator to quickly converge to its effective threshold. From this value, the final offset is computed by subtracting the ideal reference....
This paper presents a design methodology for the simultaneous optimization of jitter and power consumption in ultra-low jitter clock recovery circuits (<100fsrms) for high-performance ADCs. The key ideas of the design methodology are: a) a smart parameterization of transistor sizes to have smooth dependence of specifications on the design...
This paper presents a 10-bit fully-differential rail-to-rail successive approximation (SAR) ADC designed for biomedical applications. The ADC, fabricated in a 180nm HV CMOS technology, features low switching energy consumption and employs a time-domain comparator which includes an offset cancellation mechanism. The power dissipated by the ADC...
This paper presents a fully differential 8thorder transconductor-based active complex filter with 2.4MHz bandwidth and centered at 2.5MHz, designed in a 90nm 2.5V 7M and MIM capacitors CMOS process technology. The filter compliants with the requirements of the IEEE802.15.4 standard. Simulation results including mismatching and process...