Patent ID: 6657503
Filing Date: 2003-12-02
Classification: H03F,H03K,H03L

Abstract:
A differential inverter circuit connected to a voltage supply and to a ground, comprising:a first input transistor and a second input transistor for receiving a differential input voltage, a first differential voltage component of the differential input voltage being applied to the first input transistor and a second differential voltage component of the differential input voltage being applied to the second input transistor; a first current source connected between the first input transistor and the voltage supply, an inverted second differential voltage component being generated at a connection between the first current source and the first input transistor; a second current source connected between the second input transistor and the voltage supply, an inverted first differential voltage component being generated at a connection between the second current source and second input transistor; a third current source connected between the first and second input transistors and the ground; a first load device coupled in parallel with the first input transistor between the first and third current sources; and a second load device coupled in parallel with the second input transistor between the second and third current sources.