Date of Award
Master of Science
Benjamin J. Blalock
Jeremy H. Holleman III, Syed K. Islam
The future of electronics is the Internet of Things (IoT) paradigm, where "always-on" devices and sensors monitor and transform everyday life. A plethora of applications (such as navigating drivers past road hazards or monitoring bridge and building stresses) employ this technology. These unattended ground-sensor applications require decade(s)-long operational life-times without battery changes. Such electronics demand stringent performance specifications with only nano-Watt power levels.This thesis presents an ultra-low-power track-and-hold amplifier for such systems. It serves as the front-end of a SAR-ADC or the building block for equalizers or filters. This amplifier's design attains exceptional hold times by mitigating switch subthreshold leakage and bulk leakage. Its novel transmission-gate topology achieves wide-swing performance. Though only consuming 100 pico-Watts, it achieves a precision of 7.6 effective number of bits (ENOB). The track-and-hold amplifier was designed in 130-nm CMOS.
Niemela, George Earl, "An Ultra-Low-Power Track-and-Hold Amplifier. " Master's Thesis, University of Tennessee, 2018.