Patent · US Expired

Merged transconductance amplifier

US5774021A · kind A · utility

14Cited by
3References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 3, 1996
Grant dateJun 30, 1998
Priority date
Expiry dateOct 3, 2016

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03F3/45071
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

Operational transconductance amplifiers (OTAs) are combined at their outputs, yielding a single frequency compensation connection point. In a preferred embodiment, the output of each OTA is asymmetric, i.e., they can only source current and the OTA outputs are tied together to a constant current sink. Consequently, the OTA that sources more current controls the voltage of the merged output. This merged output point provides a voltage output that may be used as a frequency compensation point.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.