1．INTRODUCTION 1
2．AD AND DA CONVERSION 3
1 Introduction 3
2 Trends in applications 4
3 Trends in technology 5
4 Trends in system design 6
5 Performance criteria 8
6 Conclusion 9
3．SMART CONVERSION 11
1 Introduction 11
2 Smart concept 11
3 Application of the smart concept 15
4 Focus in this work 16
5 Conclusion 17
4．SMART DA CONVERSION 19
1 Introduction 19
2 Area ofcurrent-steering DACs 21
3 Correction of mismatch errors 24
4 Subbinary variable-radix DAC 25
5 Design example 33
6 Conclusion 40
5．DESIGN OF A SUB-BINARY VARIABLE-RADIX DAC 41
1 Schematic design 41
2 Layout 45
3 Self-measurement-circuit implementation 46
4 Experimental results 47
5 Conclusion 54
6．SMART AD CONVERSION 57
1 Introduction 57
2 Literature review 58
3 High-speed high-resolution AD conversion 60
4 Smart calibration 67
5 Conclusion 70
7．DESIGN OF AN OPEN-LOOP T ＆ H CIRCUIT 73
1 Literature review 73
2 Design goal 75
3 T ＆ H architecture 75
4 Sampling core architecture 76
5 Output buffer architecture 78
6 T ＆ H design 88
7 Experimental results 91
8 Conclusion 102
8．T ＆ H CALIBRATION 103
1 Introduction 103
2 T ＆ H accuracy 104
3 T ＆ H calibration method 105
4 Analog correction parameters 106
5 Digitally assisted analog correction 113
6 Simulation results 117
7 Implementation of the calibration method and layout 119
8 Experimental results 120
9 Conclusion 124
9．T ＆ H CALIB RATION FOR TIME-INTERLEAVED ADCS 125
1 Introduction 125
2 Channel matching in time-interleaved T ＆ H's 128
3 Channel mismatch calibration 129
4 Channel mismatch detection 132
5 Channel mismatch correction 145
6 Simulation results 147
7 Implementation of the calibration method and layout 149
8 Experimental results 150
9 Conclusion 153
10．CONCLUSIONS 155
References 157
Index 163