PPT-– 1 – Data Converters

Subranging ADCs Professor Y Chiu EECT 7327 Fall 2014 Subranging ADC Subranging ADC Architecture 2 Data Converters Subranging ADCs Professor Y Chiu EECT 7327 Fall 2014. Data Converter . Design 2. Introduction. 1. Data Converters. Signal. Conditioning. ADC. MCU. DAC. Post. Processing. -Amplification. -Anti-aliasing. . filter. ex. Smoothing filter. Analog-to-Digital Converters . and . poisons. Rates of Reaction. Catalytic Converters. Exhaust fumes contain. CO – . due . to incomplete combustion of hydrocarbons. NO & NO. 2. – . N. 2. . in air is oxidised at high temperatures. Data Converters. Professor Yun Chiu. © . 2014. Erik . Jonsson. School of Electrical Engineering and Computer Science . University of Texas at . Dallas. Logistics. – . 2. –. Instructor: Professor Yun Chiu. To investigate the application of advanced manufacturing techniques to the fabrication and automated assembly of highly integrated power converters.. Dr Xi Lin. PEMC Research Group, University of Nottingham. Subranging. ADCs Professor Y. Chiu. EECT 7327 . Fall 2014. Subranging. ADC. Subranging. ADC Architecture. – . 2. –. Data Converters . Subranging. ADCs Professor Y. Chiu. EECT 7327 . Fall 2014. EECT 7327 . Fall 2014. Interpolation. Interpolation. – . 2. –. Data Converters Interpolating and Folding ADC Professor Y. Chiu. EECT 7327 . Fall 2014. Uniformly spaced zero-crossings in flash ADCs. EECT 7327 . Fall 2014. Oversampling ADC. Nyquist. -Rate ADC. – . 2. –. Data Converters Oversampling ADC Professor Y. Chiu. EECT 7327 . Fall 2014. The “black box” version of the quantization process. EECT 7327 . Fall 2014. Data Converter Basics. A/D and D/A Conversion. – . 2. –. Data Converters Data Converter Basics Professor Y. Chiu. EECT 7327 . Fall 2014. A/D Conversion. D/A Conversion. EECT 7327 . Fall 2014. Successive Approximation. (SA) ADC. Successive Approximation ADC. – . 2. –. Data Converters Successive Approximation ADC Professor Y. Chiu. EECT 7327 . Fall 2014. Binary search algorithm → N*. EECT 7327 . Fall 2014. DAC Architecture. DAC Architecture. – . 2. –. Data Converters DAC Professor Y. Chiu. EECT 7327 . Fall 2014. Nyquist DAC architectures. Binary-weighted DAC. Unit-element (thermometer-coded) DAC. EECT 7327 . Fall 2014. Algorithmic . (Cyclic) ADC. Algorithmic (Cyclic) ADC. – . 2. –. Data Converters Algorithmic ADC Professor Y. Chiu. EECT 7327 . Fall 2014. Input is sampled first, then circulates in the loop for N clock cycles. EECT 7327 Fall 2014. Sample-and-Hold (S/H) Basics. ZOH vs. Track-and-Hold (T/H). – . 2. –. Data Converters Sample-and-Hold Professor Y. Chiu. EECT 7327 Fall 2014. Zero acquisition time. Infinite bandwidth. 2. outline. Definitions of . phenoconversion. Characteristics of . phenoconverters. Defining . phenoconversion. in . pppmi. 4. Definition of . phenoconversion. Data-driven. Diagnostic codes. …biomarkers…. EECT 7327 . Fall 2014. CMOS Comparator. Comparator. – . 2. –. Data Converters Comparator Professor Y. Chiu. EECT 7327 . Fall 2014. Transfer characteristic. (ideal). Circuit symbol. Detects the polarity of the analog input signal and produces a digital output (1 or 0) accordingly – threshold-crossing detector.