CMOS Analog Circuit Design : Basic Circuits


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The approach to analog IC design taken in these notes are to start with the basic level circuits and work upward toward the more complex circuits. The basic circuits include the switch, current sinks and sources, current mirrors, simple voltage and current references, bandgap reference, inverting amplifiers, differential amplifiers, common gate amplifiers, and output amplifiers. These basic circuits will become part of the circuits in the modules to follow. Understanding of positive and negative feedback will be an important part of this module.


  1. MOS Switch
  2. Current Sinks and Sources
  3. Current Mirrors and Simple References
  4. Bandgap References
  5. Inverting Amplifier
  6. Differential Amplifier
  7. Low Input Resistance Amplifiers – CG, Cas…
  8. Output Amplifiers
  9. Bandgap Spec