Patent · US Expired

Integrated comparator circuit

US5434521A · kind A · utility

5Cited by

8References

2Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Ludwig Leipold · Munich, DE
Rainald Sander · Oberhaching, DE
Jenoe Tihanyi · Tauberbischofsheim, DE

Key dates

Filing date	Nov 19, 1992
Grant date	Jul 18, 1995
Priority date	—
Expiry date	Nov 19, 2012

Classification

Technology area (CPC H)Electricity
CPC primaryH03K17/302
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

An integrated comparator circuit includes two complementary MOSFETs having main current paths being connected together in a series circuit at a connecting point. An inverter stage has two complementary MOSFETs with gate terminals connected to the connecting point. First, second and third terminals are provided. The first and second terminals are for an operating voltage, and the second and third terminals are for a voltage to be compared. The series circuit is connected between the first and third terminals, and the inverter stage is connected between the first and second terminals. One of the MOSFETs of the series circuit connected to the first terminal and one of the MOSFETs of the inverter stage connected to the first terminal are of the same channel type. The other of the MOSFETs of the series circuit connected to the third terminal and the other of the MOSFETs of the inverter stage connected the second terminal are of the same channel type.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.