analog这边
器件可以看neamen的semiconductor physics and devices
电路可以看gray的analysis and design of analog integrated circuits
A/D可以看plassche的cmos integrated analog-to-digital and digital-to-analog converters
delta-sigma可以看temes等的understanding delta-sigma data converters
pll可以看gardner的phase-lock techniques
layout与工艺可以看hastings的the art of analog layout
信号与系统当然是oppenheim的signals and systems