Electronic circuit for converting a differential signal into a single-ended signal with common mode voltage rejection by resistor network
US5760648A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1996 |
| Grant date | Jun 2, 1998 |
| Priority date | — |
| Expiry date | Aug 12, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/45479
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A differential-to-single-ended converter comprising a resistor network (205) and an operational amplifier is introduced. In comparison to prior art converters, a resistor (250) placed between the non-inverting input (264) of the operational amplifier (260) and the negative input terminal (202) of the converter (200). The common mode voltage (V.sub.nii ') at the non-inverting input (264) does not depend on the differential input voltage (V.sub.in.sup.#) of the converter (200) and has low fluctuations. This allows the use of an operational amplifier (260) with low CMRR and makes the converter (200) suitable for low voltage applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.