A Programmable delta sigma Modulator Using Floating Gates__論文

kevinwjs · 发表于 2008-3-18 14:57:34

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A Programmable delta sigma Modulator Using Floating Gates

I INTRODUCTION 1
1.1 Previous work on A-E Modulators Involving Floating Gates 1
II OPERATIONAL TRANSCONDUCTANCE AMPLIFIER DESIGN . 4
2.1 Traditional Subthreshold Design 4
2.2 Linearity Issues 8
2.3 Common Mode Feedback 12
III DESIGN OF THE A-E MODULATOR 21
3.1 Top Level Overview 21
3.2 1-bit Current DAC 22
3.3 Comparator Structure 25
3.4 SPICE Simulation Results 27
IV EXPERIMENTAL A-E MODULATOR MEASUREMENTS 29
4.1 Test Setup 29
4.2 2nd Order Results 35
4.3 3rd Order Results 39
4.4 Modulator with Unlatched Comparator Results 42
V HIGH LEVEL MODELLING 46
5.1 Using SIMULINK For High Level Modelling 46
VI CONCLUSION 50
6.1 Future Work 51
6.2 Distribution of Work