Input tracking current mirror for a differential amplifier system
US7250819B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2005 |
| Grant date | Jul 31, 2007 |
| Priority date | — |
| Expiry date | Mar 31, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45484
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An input tracking current mirror for a differential amplifier system includes a current mirror having an input leg and an output leg, a differential amplifier including a first set of at least two transconductance components, each having at least one input terminal for receiving input signals, the first set of at least two transconductance components having a first common node connected to the output leg which has a first voltage that is a function of the input signals, and a tracking circuit including a second set of at least two transconductance components each having at least one input terminal for receiving the input signals, the second set of at least two transconductance components, having a second common node connected to the input leg which has a second voltage that is a function of the input signals, the tracking circuit driving the second voltage on the input leg to track the first voltage on the output leg with variations in the input signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.