abstract: This dissertation proposes and presents two different passive sigma-delta
modulator zoom Analog to Digital Converter (ADC) architectures. The first ADC is fullydifferential, synthesizable zoom-ADC architecture with a passive loop filter for lowfrequency Built in Self-Test (BIST) applications. The detailed ADC architecture and a step
by step process designing the zoom-ADC along with a synthesis tool that can target various
design specifications are presented. The design flow does not rely on extensive knowledge
of an experienced ADC designer. Two example set of BIST ADCs have been synthesized
with different performance requirements in 65nm CMOS process. The first ADC achieves
90.4dB Signal to Noise Ratio (SNR) in 512µs measurement time and consumes 17µW
power. Another example achieves 78.2dB SNR in 31.25µs measurement time and
consumes 63µW power. The second ADC architecture is a multi-mode, dynamically
zooming passive sigma-delta modulator. The architecture is based on a 5b interpolating
flash ADC as the zooming unit, and a passive discrete time sigma delta modulator as the
fine conversion unit. The proposed ADC provides an Oversampling Ratio (OSR)-
independent, dynamic zooming technique, employing an interpolating zooming front-end.
The modulator covers between 0.1 MHz and 10 MHz signal bandwidth which makes it
suitable for cellular applications including 4G radio systems. By reconfiguring the OSR,
bias current, and component parameters, optimal power consumption can be achieved for
every mode. The ADC is implemented in 0.13 µm CMOS technology and it achieves an
SNDR of 82.2/77.1/74.2/68 dB for 0.1/1.92/5/10MHz bandwidth with 1.3/5.7/9.6/11.9mW
power consumption from a 1.2 V supply. / Dissertation/Thesis / Doctoral Dissertation Electrical Engineering 2018
| Identifer | oai:union.ndltd.org:asu.edu/item:51619 |
| Date | January 2018 |
| Contributors | EROL, OSMAN EMIR (Author), Ozev, Sule (Advisor), Kitchen, Jennifer (Committee member), Ogras, Umit (Committee member), Blain-Christen, Jennifer (Committee member), Arizona State University (Publisher) |
| Source Sets | Arizona State University |
| Language | English |
| Detected Language | English |
| Type | Doctoral Dissertation |
| Format | 101 pages |
| Rights | http://rightsstatements.org/vocab/InC/1.0/ |
Page generated in 0.0019 seconds