dc.contributor.advisor | Silva-Martinez, Jose | |
dc.creator | Kim, Kun Mo | |
dc.date.accessioned | 2011-08-08T22:48:51Z | |
dc.date.accessioned | 2011-08-09T01:21:39Z | |
dc.date.available | 2011-08-08T22:48:51Z | |
dc.date.available | 2011-08-09T01:21:39Z | |
dc.date.created | 2011-05 | |
dc.date.issued | 2011-08-08 | |
dc.date.submitted | May 2011 | |
dc.identifier.uri | https://hdl.handle.net/1969.1/ETD-TAMU-2011-05-9651 | |
dc.description.abstract | This thesis presents the design of a 20 MHz bandwidth 3rd-order continuous-time low-pass sigma-delta analog-to-digital converter with low-noise and low-power consumption using TSMC 0.18 μm CMOS technology. The bandwidth of the system is selected to be able to accommodate WiMAX and other wireless network standards. A 3rd-order filter with feed-forward architecture is selected to achieve low-power consumption as well as less complexity. The system uses 3-bit flash quantizer to provide fast data conversion. The current-steering DAC not only achieves low-power and less current sensitivity, but also it helps directly inject the feedback signal without additional circuitries. In order to avoid degradation of the overall performance, cross-coupled transistors are adopted to reduce the current glitches. The proposed system achieves a peak SNDR of 65.9 dB in 20 MHz bandwidth, and consumes 31.735 mW from a 1.8 V supply. The entire circuit is driven by a sampling rate at 500 MHz. The measured in-band IM3 of this thesis is -69 dB with 600 mVp-p two tone signal peak-to-peak voltage. | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | en_US | |
dc.subject | analog to digital converter, wideband receiver, sigma delta modulation, flash quantizer, current steering DAC, 0.18 μm CMOS, continuous time low pass filter. | en |
dc.title | A 3rd-order Continuous-Time Low-Pass Sigma-Delta Analog-to-Digital Converter for Wideband Applications | en |
thesis.degree.department | Electrical and Computer Engineering | en |
thesis.degree.discipline | Electrical Engineering | en |
thesis.degree.grantor | Texas A&M University | en |
thesis.degree.name | Bachelor of Science | en |
thesis.degree.level | Undergraduate | en |
dc.type.genre | thesis | en |
dc.type.material | text | en |