US 2008/0258778 A1Published application

Current mirror circuit

OwnerMarco Schreiterinventor

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Abstract

The invention relates to a current mirror circuit (110) having a first transistor (112) and a second transistor (114), each of which have a control terminal (128, 136), formed particularly as a base or gate, and in each case two current terminals (124, 126, 132, 134), formed particularly as an emitter and collector or drain and source, whereby the control terminals (128, 136) of both transistors (112, 114) are connected to one another in an electrically conducting way at a connection node (140) and to a first current terminal (124, 126) of the first transistor (112) via a connecting line (150). It is provided according to the invention that the connecting line (150) is assigned bias means, provided for shifting an electric potential at the first current terminal (124) of the first transistor (112) relative to an electric potential of the connection node (140). Use in integrated circuits

Claims8

Dependent claims

A current mirror circuit comprising:

a first transistor with a first current terminal, which is formed as a collector or drain and is supplied with a first current;
a second current terminal, formed as an emitter or source;
a second transistor with a current terminal, which is formed as a collector or drain and is supplied with a second current dependent on the first current;
and
a current terminal, formed as an emitter or source,
wherein the two transistors each have a control terminal formed as a base or gate and the control terminals are connected to one another in an electrically conductive manner at a connection node and the connection node is connected to the first current terminal of the first transistor via a connecting line, and
wherein between the first current terminal and the connection node a bias is provided, which by means of the current flowing through the bias effects a shift of an electric potential of the first current terminal relative to an electric potential of the connection node.

4 more elements

Dependencies are inferred from the claim text.