Improvements in biasing and compensation of CMOS opamps

@article{Nicolson2004ImprovementsIB,
  title={Improvements in biasing and compensation of CMOS opamps},
  author={Sean Nicolson and Khoman Phang},
  journal={2004 IEEE International Symposium on Circuits and Systems (IEEE Cat. No.04CH37512)},
  year={2004},
  volume={1},
  pages={I-665}
}
In this paper, we present modifications to the constant-gm bias circuit and the Miller-lead compensation technique which eliminate or minimize some of their shortcomings. First, we demonstrate how parasitic pad capacitance can cause instability in the constant-gm bias circuit, and show that the transconductance is constant only for specific bias conditions. Next, we suggest a new circuit topology that requires 75% less compensation capacitance to achieve stability. We also discuss problems with… CONTINUE READING
Highly Cited
This paper has 18 citations. REVIEW CITATIONS

Citations

Publications citing this paper.
Showing 1-10 of 13 extracted citations

References

Publications referenced by this paper.
Showing 1-5 of 5 references

Design and Analysis Techniques for Low- Voltage, Low-Jitter Voltage-Controlled Oscillators

  • T. Pialis
  • M.Eng. Design Project Report, University of…
  • 2002
2 Excerpts

Generation of Accurate On- Chip Time Constants and Stable Transconductances

  • A. McLaren, K. Martin
  • IEEE Journal of Solid-State Circuits, vol. 36, no…
  • 2001
1 Excerpt

Similar Papers

Loading similar papers…