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050 _aTK7887.6
_b.Y36 2006
100 1 _aYao, Libin
_92152
245 1 _aLow-Power Low-Voltage Sigma-Delta Modulators in Nanometer CMOS /
_cby Libin Yao, Michiel Steyaert and Willy Sansen
260 _aNetherlands. :
_bSpringer,
_cc2006.
300 _axxiii, 158 p. :
_bill. ;
_c24 cm.
500 _aIncludes Bibliography and index.
505 _aAbstract Contents List of Tables List of Figures Symbols and Abbreviations Physical Definitions 1 Introduction 1.1 Motivation 1.2 Outline of the work 2 ADCs in Deep-Submicron CMOS Technologies 2.1 Introduction 2.2 Scaling-Down of CMOS Technologies 2.2.1 Driving Force of the CMOS Scaling-Down 2.2.2 Moving Into Deep-Submicron CMOS Technologies 2.3 Impact of Moving Into Deep-Submicron CMOS to Analog Circuits 2.3.1 Decreased Supply Voltage 2.3.2 Impact on Transistor Intrinsic Gain 2.3.3 Impact on Device Matching 2.3.4 Impact on Device Noise 2.4 ADCs In Deep-Submicron CMOS 2.4.1 Decreased Signal Swing 2.4.2 Degraded Transistor Characteristics 2.4.3 Distortion 2.4.4 Switch Driving 2.4.5 Improved Device Matching 2.4.6 Digital Circuits Advantages 2.5 Conclusion 3 Principle of sigma-delta ADC 3.1 Introduction 3.2 Basic Analog to Digital Conversion 3.3 Oversampling and Noise Shaping 3.3.1 Oversampling 3.3.2 Noise Shaping 3.3.3 sigma-delta modulator 3.3.4 PerformanceMetrics for the sigma-delta ADC 3.4 Traditional sigma-delta ADC Topology 3.4.1 Single-Loop Single-Bit sigma-delta Modulators 3.4.2 Single-Loop Multibit sigma-delta Modulators 3.4.3 Cascaded sigma-delta Modulators 3.5 Conclusion 4 Low-Power Low-Voltage sigma-delta ADC Design in Deep-Submicron CMOS: Circuit Level Approach 4.1 Introduction 4.2 Low-Voltage Low-Power OTA Design 4.2.1 Gain Enhanced Current Mirror OTA Design 4.2.2 A Test Gain-Enhanced Current Mirror OTA 4.2.3 Implementation and Measurement Results 4.2.4 Two-Stage OTA Design 4.3 Low-Voltage Low-Power sigma-delta ADC Design 4.3.1 Impact of Circuit Nonidealities to sigma-delta ADC Performance 4.3.2 Modulator Topology Selection 4.3.3 OTA Topology Selection 4.3.4 Transistor Biasing 4.3.5 Scaling of Integrators 4.4 A 1-V 140- Wsigma-delta modulator in 90-nm CMOS 4.4.1 Building Block Circuits Design 4.4.2 Implementation 4.4.3 Measurement Results 4.5 Measurements on PSRR and Low-Frequency Noise Floor 4.5.1 I
520 _aLow-Power Low-Voltage Sigma-Delta Modulators in Nanometer CMOS addresses the low-power low-voltage Sigma-Delta ADC design in nanometer CMOS technologies at both the circuit-level and the system level. The low-power low-voltage Sigma-Delta modulator design at the circuit level is introduced. A design example is presented in this book. This design is the first published Sigma-Delta design in a 90-nm CMOS technology and reaches a very high figure-of-merit. At the system level, a novel systematic study on the full feedforward Sigma-Delta topology is presented in this book. As a design example, a fourth-order single-loop full feedforward Sigma-Delta modulator design in a 130-nm pure digital CMOS technology is presented. This design is the first design using the full feedforward Sigma-Delta topology and reaches the highest conversion speed among all the 1-V Sigma-Delta modulators to date.
650 0 _aAnalog-to-digital converters
_92153
650 0 _aModulators (Electronics)
_92154
700 0 _aSteyaert, Michiel, 1959-
_92155
700 0 _aSansen, Willy M. C
_92156
942 _2lcc
_n0
_cBK
999 _c690
_d690