Circuit for transforming a differential mode signal into a single ended signal with reduced standby current consumption

US6819142B2 · kind B2 · utility

Assignee

• Infineon Technologies AG · DE

Inventors

• Hans-Heinrich Viehmann · Munich, DE
• Stefan Lammers · Hersbruck, DE

Key dates

• Filing date: Mar 13, 2003
• Grant date: Nov 16, 2004
• Expiry date: Mar 13, 2023

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03K19/0016
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

An apparatus for converting a differential mode signal into a single ended signal with reduced power consumption. A preferred embodiment comprises a single ended converter (for example, a single ended converter 505) and an output transistor (for example, output transistor 524) that when the single ended converter 505 is in standby may pull the output of the single ended converter 505 to a known logic state (such as high logic or low logic). A single ended buffer (inverting or non-inverting) may be used for output signal compatibility conversion.