Index Catalog // ScholarsArchive@OSU

Linearity enhancement techniques for data converters

Creator:: Cao, Jinzhou
Abstract:: Data converters are essential interface circuits between the analog world that people live in and the digital processors that people live with. Linearity, which often is a tradeoff against other performance criteria, is one of the major performance demands from applications for both analog-to-digital converts (ADC) and digital-to-analog converters (DAC)....
Resource Type:: Dissertation

Operational amplifier compensation using doublet-decompression for switched-capacitor circuits

Creator:: Jen, Shin D.
Abstract:: A frequency compensation technique for increasing the settling speed of two-stage operational amplifiers used in switched-capacitor applications has been developed. By properly decompressing the pole-zero doublet to form a three-pole one zero system, the settling speed is increased up to 50 percent as compared to the optimized two-pole system.
Resource Type:: Masters Thesis

MOS switched-current biquadratic filters

Creator:: Lee, Bor
Abstract:: A MOS biquadratic (biquad) filter employing the switched-current technique is reported. The circuit uses current-mode processing which can offer wide bandwidth, low voltage operation, and can be implemented with standard CMOS technology. Examples of lowpass, highpass, and bandpass filters are given which illustrate the synthesis procedures and the versatility of...
Resource Type:: Masters Thesis

Digitally-programmable switched-current filters

Creator:: Yesilyurt, Ayse Gul
Abstract:: Digitally-programmable filters have been an ongoing research topic for a number of years. The first such filters were FIR transversal filters using Charge-Coupled Devices (CCD's) and IIR recursive filters using switched-capacitor (SC) techniques. Although both techniques achieve excellent results, they require non-standard and/or additional IC fabrication steps. Low substrate doping...
Resource Type:: Masters Thesis

A time-multiplexed switched-capacitor circuit for neural network applications

Creator:: Hansen, James Edward, 1962-
Abstract:: Analog computation in the form of neural networks is currently receiving much attention. Existing algorithms cannot be easily implemented in hardware because of the large number of neurons needed and the number of connections necessary between them. These problems have motivated development of alternatives to a conventional implementation. Hence, a...
Resource Type:: Masters Thesis

Current-feedthrough cancellation techniques in switched-current circuits

Creator:: Lao, Paul A.
Resource Type:: Masters Thesis

The design of a postfilter for a delta-sigma digital-to-analog converter

Creator:: Chen, Chao-Yin
Resource Type:: Masters Thesis

MOSFET-only predictive track and hold circuit

Creator:: Qiu, Xiangping
Abstract:: High-accuracy and high-speed CMOS track-and-hold (T/H) or sample-and-hold (S/H) circuits are an important part of the analog-to-digital interface. The switched-capacitor (SC) circuits usually contain one or more op-amps whose dc offset, finite gain, finite bandwidth have a big impact on the accuracy of the track-and-hold circuit. Basic correlated double sampling...
Resource Type:: Masters Thesis

Design techniques of high-performance switched capacitor circuits in the presence of component imperfections

Creator:: Huang, Yunteng
Abstract:: This thesis describes design techniques for high-performance switched-capacitor (SC) circuits, primarily for high-linearity low-noise SC circuits in the presence of component imperfections, such as nonlinear op-amp voltage transfer characteristics, capacitor nonlinearities as well as the finite op-amp dc gain and op-amp offset and noise. Various correlated-double-sampling (CDS) schemes are discussed,...
Resource Type:: Dissertation

Novel switched-capacitor circuits for delta-sigma modulators

Creator:: Yesilyurt, Ayse Gul
Abstract:: Oversampled delta-sigma modulation is one of the widely used A/D conversion techniques for narrow bandwidth signals. In this study several new lowpass and bandpass delta-sigma modulator architectures as well as novel pseudo-N-path integrators that can be used in implementing these architectures are proposed. By using multiplexing techniques the new lowpass...
Resource Type:: Dissertation

ScholarsArchive@OSU

Linearity enhancement techniques for data converters

Operational amplifier compensation using doublet-decompression for switched-capacitor circuits

MOS switched-current biquadratic filters

Digitally-programmable switched-current filters

A time-multiplexed switched-capacitor circuit for neural network applications

Current-feedthrough cancellation techniques in switched-current circuits

The design of a postfilter for a delta-sigma digital-to-analog converter

MOSFET-only predictive track and hold circuit

Design techniques of high-performance switched capacitor circuits in the presence of component imperfections

Novel switched-capacitor circuits for delta-sigma modulators

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