1 Introduction. 1.1 The objectives of this work. 1.2 Structured analog design. 1.3 Transistor-level design based on the device inversion level. 1.4 CAD tools for analog design assistance. 1.5 Practical design example. 1.6 Book organization. 2 Transistor level design. 2.1 MOS transistor model. 2.2 Transistor design parameters. 2.3 Design approach. 2.4 Conclusion. Bibliography. 3 BSIM to EKV conversion. 3.1 Motivation and purpose. 3.2 Conversion concept. 3.3 BSIM versus EKV, the fundamental differences and the conversion algorithm guidelines. 3.4 Conversion algorithm. 3.5 Conversion results. 3.6 Conclusion. 3.7 Download. Bibliography. 4 Basic analog structures. 4.1 Introduction. 4.2 Basic analog structures' library. 4.3 Structured design approach. 4.4 Transconductance structures. 4.5 Load structures. 4.6 Bias structures. 4.7 Conclusion. Bibliography. 5 Procedural design scenarios. 5.1 Introduction. 5.2 Procedural design scenario for a folded-cascode OTA. 5.3 Procedural design scenario for a fully-differential folded cascode OTA. 5.4 Procedural design scenario for a Miller operational amplifier. 5.5 Conclusion. Bibliography. 6 PAD tool. 6.1 Introduction. 6.2 PAD structure. 6.3 Basic analog structures' library. 6.4 Procedural design scenarios. 6.5 BSIM and EKV model library file input. 6.6 Conclusion. 6.7 Download. Bibliography. 7 Topology variants. 7.1 Basic concept. 7.2 Gain enhancement - two stages. 7.3 Gain enhancement - gain boosting. 7.4 Input common-mode range enhancement - complementary differential pair. 7.5 Differential input range enhancement - linearized differential pair. 7.6 Rejection of the differential signal in a common-mode signal - cascoded current bias sources. 7.7 CMFB stability improvement - split bias sources. 7.8 Conclusion. Bibliography. 8 Practical example: the design of analog amplifiers in the Delta-Sigmamodulator system. 8.1 Delta-Sigma modulator system. 8.2 Derivation of the testbench. 8.3 Topology selection. 8.4 Design of the fully-differential high-gain amplifier. 8.5 Design of the fully-differential difference amplifier. 8.6 Design of the fully-differential two-stage amplifier. 8.7 Conclusion. Bibliography. Index.
Structured Analog CMOS Design describes a structured analog design approach that makes it possible to simplify complex analog design problems and develop a design strategy that can be used for the design of large number of analog cells. It intentionally avoids treating the analog design as a mathematical problem, developing a design procedure based on the understanding of device physics and approximations that give insight into parameter interdependences.
The basic design concept consists in analog cell partitioning into the basic analog structures and sizing of these basic analog structures in a predefined procedural design sequence. The procedural design sequence ensures the correct propagation of design specifications, the verification of parameter limits and the local optimization loops. The proposed design procedure is also implemented as a CAD tool that follows this book.
All material is presented in organized and structured way
The transistor-level design is based on the EKV modelling approach which leads to new way of thinking and approaching design problems
The circuit-level design is given in the form of procedural design scenarios
The final chapter provides the examples on the design of complex amplifiers topologies used as a part of Delta-Sigma modulator system
The described design procedure is implemented as a design tool that can be downloaded from the site analog.eplf.ch