Different operational transconductance amplifier topologies for obtaining very small transconductances Academic Article uri icon


  • A family of CMOS Operational Transconductance Amplifiers (OTA's) have been designed for very small GM's (of the order of nA/V) in the moderate inversion region of operation using several design schemes such as current division, floating gate input stages and bulk driven techniques. A detailed comparison has also been made among these schemes in terms of performance characteristics such as power consumption, active silicon area and signal to noise ratio (SNR). The design has been sent for fabrication in a 1.2 NWELL CMOS Process with a power supply of 2.7 V.

published proceedings

  • 2000 IEEE International Symposium on Circuits and Systems. Emerging Technologies for the 21st Century. Proceedings (IEEE Cat No.00CH36353)

author list (cited authors)

  • Veeravalli, A., Sanchez-Sinencio, E., & Silva-Martinez, J.

citation count

  • 6

complete list of authors

  • Veeravalli, A||Sanchez-Sinencio, E||Silva-Martinez, J

publication date

  • January 2000