Index Catalog // ScholarsArchive@OSU

High-performance Ring Amplifier based Analog-to-Digital Converters

Creator:: Hu, Hang
Abstract:: Ring Amplifier serves as a great candidate both for precision amplification and fast integration in the discrete time system. It can be utilized in high-performance analog-to-digital converters (ADCs). In high-speed ADC utilizing pipelined architectures with residue amplification, Successive-Approximation Register (SAR) ADCs as the sub-ADC and power efficient Ring Amplifier based...
Resource Type:: Dissertation

Single-Ended Techniques for Delta-Sigma Modulators

Creator:: Lee, Calvin Y.
Abstract:: This work presents a high-resolution Delta-Sigma ADC which combines the use of the pseudo-pseudo-differential noise filtering technique with single-ended ring amplifier based integrators. The pseudo-pseudo-differential noise filtering technique utilizes single-ended circuits while maintaining the even-order rejection found in fully-differential structures which alleviates, in the active analog blocks, the need for...
Resource Type:: Dissertation

Active Noise Shaping Analog-to-Digital Data Converters

Creator:: Shi, Lukang
Abstract:: Successive-approximation-register (SAR) analog-to-digital converters are popular for medium accuracy, medium speed and low power applications, such as in biomedical applications. They have low latency and simple architecture compared with ΔΣ ADCs. This is because of SAR ADCs’ binary searching scheme. Furthermore, SAR ADCs can apply oversampling and noise shaping schemes...
Resource Type:: Dissertation

Ring Amplifier Optimized for High Resolution Analog-to-Digital Converter Applications

Creator:: ElShater, Ahmed O.
Abstract:: In recent years, SAR ADCs have been shown to acheive faster conversion times and improved power efficiencies due to their simple building blocks that are digital in nature and scale favorably with technology. High resolution ADCs with stringent noise requirement has led to the adoption of hybrid ADC architectures such...
Resource Type:: Dissertation

A 1V 40mA Fast Transient Capless LDO with 7uA Quiescent Current in 180nm CMOS using Ring Amplifier with Adaptive Damping

Creator:: Xiao, Bohui
Abstract:: Ring amplification has emerged as an efficient technique to drive large capacitive loads in switched capacitor circuits. We propose circuit techniques to demonstrate the first application of a ring amplifier in a non-capacitive feedback system of a LDO. These techniques enable a simple cap-less LDO structure in 180nm CMOS that...
Resource Type:: Masters Thesis

Ring Amplifier Design Techniques for High-Precision and High-Speed Amplification

Creator:: Leuenberger, Spencer
Abstract:: Demands of today's integrated society dependent on communication systems have driven the creation of ever more efficient analog-to-digital converters. For the same reasons, digital circuitry has rapidly expanded to serve all the different systems and needs of consumers. The trend of technology development has been to make these digital circuits...
Resource Type:: Dissertation

Next generation analog-to-digital conversion using time-based encoding and digital synthesis techniques

Creator:: Muhlestein, Jason, Russell
Abstract:: The internet-of-things is a growing market segment which is based on an arrayof portable communication devices with high power efficiency. Advanced semiconductortechnology can easily improve their digital performance, but the samecannot be said for the analog blocks which are vital to their operation. Highperformance analog circuits continue to use conventional...
Resource Type:: Dissertation

Power-Efficient Design Techniques and Architectures for Scalable Submicron Analog Circuits

Creator:: Xu, Yang
Abstract:: As the CMOS process scales down to submicron, digital circuit performance improves, while reduced supply voltage and lower transistor intrinsic gain make it difficult to implement analog circuits in a power efficient manner. Therefore, it has become advantageous to shift more analog signal processing functions conventionally realized in voltage (analog)...
Resource Type:: Dissertation

A Wide Modulation Range and PVT-Tolerant Spread-Spectrum Modulation Clock Generator

Creator:: Sun, Hyuk
Abstract:: This dissertation presents a phase domain in-loop-bandwidth spread-spectrum clock generation technique. In this proposed technique, a charge-based discrete-time loop filter is proposed to enable the phase domain in-loop-bandwidth spread-spectrum modulation without a delta-sigma modulator or time-to-digital converter. The in-loop-bandwidth modulation technique maximizes the loop bandwidth to improve phase noise suppression...
Resource Type:: Dissertation

Limitations and optimization of a blind calibration algorithm for nonlinearity in analog to digital converters

Creator:: Coker, Brandilyn
Abstract:: Analog to digital converters (ADCs) are a critical part of communication between the physical world and the increasingly digital systems humans use every day. ADCs have inherent non-idealities that degrade performance. Nonlinearity is one of the most prevalent non-idealities that designers face. While calibration methods for nonlinearity exist in the...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

High-performance Ring Amplifier based Analog-to-Digital Converters

Single-Ended Techniques for Delta-Sigma Modulators

Active Noise Shaping Analog-to-Digital Data Converters

Ring Amplifier Optimized for High Resolution Analog-to-Digital Converter Applications

A 1V 40mA Fast Transient Capless LDO with 7uA Quiescent Current in 180nm CMOS using Ring Amplifier with Adaptive Damping

Ring Amplifier Design Techniques for High-Precision and High-Speed Amplification

Next generation analog-to-digital conversion using time-based encoding and digital synthesis techniques

Power-Efficient Design Techniques and Architectures for Scalable Submicron Analog Circuits

A Wide Modulation Range and PVT-Tolerant Spread-Spectrum Modulation Clock Generator

Limitations and optimization of a blind calibration algorithm for nonlinearity in analog to digital converters

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