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This thesis presents two methods that enable high internal quantizer resolution in delta-sigma analog-to-digital converters. Increasing the quantizer resolution in a delta-sigma modulator can increase SNR, improve stability and reduce integrator power consumption. However, each added bit of quantizer resolution also causes an exponential increase in the power dissipation, required area and complexity of the dynamic element matching (DEM) circuit required to attenuate digital-to-analog converter (DAC) mismatch errors. One way to overcome these drawbacks is to segment the feedback signal, creating a "coarse" signal and a "fine" signal. This reduces the DEM circuit complexity, power dissipation, and size. However, it also creates additional problems. The negative consequences of segmentation are presented, along with two potential solutions: one that uses calibration to cancel mismatch between the "coarse" DAC and the "fine" DAC, and another that frequency-shapes this mismatch error. Mathematical analysis and behavioral simulation results are presented. A potential circuit design for the frequency-shaping method is presented in detail. Circuit simulations for one of the proposed implementations show that the delay through the digital path is under 7 ns, thus permitting a 50 MHz clock frequency for the overall ADC. ACKNOWLEDGMENTS I would like to gratefully acknowledge the support and encouragement from my wife, Andrea. To her go the official titles of "Tech Writer" and "Hyphenation-Queen" for all the proofreading and grammar checking. (Any mistakes still present in this text are most likely because I made some changes and didn't ask her to check them over.) Special thanks to my wonderful parents for their support, and for providing a roof over our heads for a bit when it was needed. Thanks as well to my brothers and sisters for their examples in striving for advanced degrees. I would like to acknowledge Dr. Craig Petrie for the time he has taken to proofread and suggest improvements for the various drafts of this thesis. I also acknowledge the other two members of my graduate committee, Dr. Michael Rice and Dr. Brent Nelson, for their help with my thesis. Special thanks to all three for the instruction and mentoring they have provided during my time as a student at BYU.