The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 2011
Filed:
Sep. 30, 2009
Hans Gustat, Heidesee/OT Prieros, DE;
Hans Gustat, Heidesee/OT Prieros, DE;
Abstract
A parallel digital-analog converter for the conversion of a plurality of differential digital input signals into a differential analog output signal, including a group of 1-bit digital-analog converters () which respectively include an intermediate storage cell () and a current cell () and which are adapted to feed a respective output current to a first () or a second output contact () in dependence on a logic state of the intermediate storage cell, wherein a first of two outputs of an intermediate storage cell () is connected by way of an input resistor () to a first signal terminal () of a first transistor () and a second of the two outputs of the intermediate storage cell () is connected by way of an input resistor () to a first signal terminal () of a second transistor (), the respective first signal terminals of the first and second transistors are additionally connected by way of a constant current source (and) to a ground terminal (), and wherein a respective time-constant bias voltage is applied at a respective control terminal (and) of the first and second transistors.