Integrated amplifier circuit
US4791381A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 11, 1988 |
| Grant date | Dec 13, 1988 |
| Priority date | — |
| Expiry date | Jan 11, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/68
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An integrated amplifier circuit includes: PA1 first and second operational amplifiers each having a terminal connected to a supply potential node, and a terminal connected to a reference potential node; PA1 two ohmic voltage dividers each being formed of two resistors connected between an output of a respective one of the operational amplifiers and a first circuit node, and two further ohmic resistors each being connected between a respective tap of the voltage dividers and a respective inverting input of a respective one of the operational amplifiers, providing real negative feedback of the operational amplifiers; PA1 a third ohmic voltage divider formed of two resistors connected between a supply potential node and the first circuit node, an intermediate ohmic resistor connected between a tap of the third voltage divider and a second circuit node, and two ohmic supply resistors each being connected between the second circuit node and a respective non-inverting input of the operational amplifier; an ohmic series resistor connected to the inverting input of the first operational amplifier; PA1 terminals connected to outputs of the operational amplifiers, terminals connected to the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.