Transconductor element for high speed GM-C integrated filters
US5570049A · kind A · utility
8Cited by
7References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 30, 1995 |
| Grant date | Oct 29, 1996 |
| Priority date | — |
| Expiry date | May 30, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H11/0427
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit technique for improving high frequency performance of current-controlled transconductor elements in transconductance-capacitance (g.sub.m -C) based monolithic filters. The circuit detects the output impedance of the transconductance transistors inside the transconductor element, regenerates and applies a negative conductance to the output of the transconductor. By cancelling the transistor output impedance, the total differential mode output impedance of the transconductor element can be maximized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.