of Dissertation Presented to the Graduate School of the University of Florida in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy TIME-BASED ANALOG-TO-DIGITAL CONVERTERS By Dazhi Wei August 2005 Chair: John G. Harris Major Department: Electrical and Computer Engineering We present the concept and some implementations of time-based analog-todigital converters (TB-AD...

Abstract — A mixed-mode inner-product vector processor is presented. It performs high-dimensional matrix-vector multiplication on a fine-grain analog array and has a purely-digital interface. The array incorporates charge-mode analog computational cells and row-parallel analog-to-digital converters (ADC). Each of the cells includes a dynamic storage element and a charge injection device computi...

Analog to Digital converter plays an important role as the interface between analog and digital signal processing. The performance of ADC is improved by power consumption of comparator (nearly 60% of power) used in ADC circuit. In such application which requires low power consumption and high speed and high resolution, one of the most prevalently used ADC architectures is the Folding and Interp...

This paper introduces a new high-performance successive approximation register (SAR) analog-to-digital converter (ADC) designed for high-speed and low-power wireless local area network (WLAN) applications using SMIC 55 nm 1p8m CMOS process. The design employs several innovative techniques, including an improved bootstrap switch with high linearity, 4-reference voltage method to minimize capacit...

In this research survey work we have presented the performance analysis of TI-ADC in order to enhance the performance it is very important to prepare a survey so we have done through a literature survey. In many mix-signal systems, analog-to-digital converters (ADCs) play an important role for digitizing analog signal. To design high-speed and high-resolution ADCs, multichannel ADC structure is...

Analog to Digital converters plays an essential role in modern mixed signal circuit design. Mixed-signal System-on-chip devices such as Analog-to-Digital Converters (ADC) have become increasingly prevalent in the semiconductor industry. Nyquist Samplers require a complicated analog low pass filter to limit the maximum frequency input to the A/D and Sample and Hold circuit. Sigma-Delta (ΣΔ) modu...

A high resolution analog to digital converter (ADC) is presented and it’s dedicated to neural recording systems. By employing two continuous time incremental sigmadelta(I∑∆) ADC in a pipeline configuration, without sacrificing the conversion rate the proposed ADC can obtain high resolution. This two-step architecture is furthermore power efficient, as the resolution need for the incremental ADC...

This paper investigates and analyzes the resistive averaging network and interpolation technique to estimate the power consumption of preamplifier arrays in a flash analog-to-digital converter (ADC). By comparing the relative power consumption of various configurations, flash ADC designers can select the most power efficient architecture when the operation speed and resolution of a flash ADC ar...

In this paper we present a study of a Continuous-Time Delta-Sigma Modulator (CT ∆ΣM) to be applied in radio communication systems, including a high-level modelization for simulation purposes. The conventional sample-and-hold and comparator blocks, very popular in CT ∆ΣM models, are replaced by an analog-to-digital converter (ADC), in order to allow the ADC modelization. In this way, we propose ...