Analog Integrated Circuits and Signal Processing

, Volume 37, Issue 3, pp 215–222 | Cite as

Circuit Design of an On-Chip Temperature-Compensated Constant Transconductance Reference

Article

Abstract

The transconductance of MOSFETS is very critical in analog integrated circuits, since it determines many important performance parameters such as gain, bandwidth, speed and noise. A novel on-chip temperature-compensated constant transconductance reference circuit is presented in this paper, which operates with a 1.8 V power supply and is implemented with a mixed-signal CMOS process. The transconductance of this circuit achieves a temperature coefficient of 136 ppm/°C over the temperature range of (−25°C, 125°C). Furthermore, this circuit also gives out a constant current reference realizing a temperature coefficient of 48 ppm/°C over the temperature range of (−25°C, 125°C). This circuit will finds popular applications in many kinds of CMOS analog integrated circuits.

transconductance CMOS bandgap temperature compensation 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    R. Raut, “Stabilizing the transconductance in CMOS transconductors for application in gm-C filters,” in Proc. ISCAS2001, Sydney, Australia, 2001, pp. 556–560.Google Scholar
  2. 2.
    Z.Y. Chang, D. Haspeslagh, and J. Verfaillie, “A highly linear CMOS Gm-C bandpass filter with on-chip frequency tuning.” IEEE J. Solid-Sate Circuits, vol. 32, no. 3, pp. 388–397, 1997.Google Scholar
  3. 3.
    J. Silva-Martinez, M. Steyaert, and W. Sansen, “A 10.7 MHz 68-dB SNR CMOS continuous-time filter with on-chip automatic tuning.” IEEE J. Solid-State Circuits, vol. 27, no. 12, pp. 1843–1853, 1992.Google Scholar
  4. 4.
    Hirad Samavati, A fully-integrated 5 GHz CMOS wireless-LAN receiver, Ph.D. Dissertation of the Department of Electrical Engineering, Stanford University, June 2001.Google Scholar
  5. 5.
    C.-Y. Wu and C.-Y. Chou, “The design of A CMOS IF bandpass amplifier with low sensitivity to process and temperature variations,” in Proc. ISCAS2001, Sydney, Australia, 2001, pp. 121–125.Google Scholar
  6. 6.
    B. Razavi, Design of Analog CMOS Integrated Circuits. McGraw-Hill Higher Education: New York, 2001, pp. 599.Google Scholar

Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  1. 1.Institute of MicroelectronicsTsinghua UniversityBeijingPeople's Republic of China

Personalised recommendations