System and method for converting from single-ended to differential signals
AssigneeInfineon Technologies North America Corp.
InventorsStephen J. Franck, Zabih Toosky
Life of this patent
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Abstract
The present invention relates to a conversion circuit that converts a single-ended signal to differential signals. According to an embodiment of the present invention, crosstalk is avoided by insuring that none of the transistors in the conversion circuit are directly connected to ground. By not having a transistor directly connected to ground, ground current is avoided and crosstalk associated with ground current is eliminated.
Claims22
A system for converting a single-ended signal to differential signals, comprising:
- a first device configured to convert a current to voltage;
- a second device coupled to the first device;
- a third device coupled to the first device and second device, wherein not one of the first, second, and third device is directly connected to ground and wherein the current is amplified by a gain of more than two;
- and
- wherein the first device, the second device, and the third device are connected at a common source.
A system for converting a single-ended signal to differential signals, comprising:
- a first device configured to convert a current to voltage;
- a second device coupled to the first device;
- a third device coupled to the first device and second device, wherein not one of the first, second, and third device is directly connected to ground and wherein the current is amplified by a gain of more than two;
- and
- a fifth device coupled with the second device, wherein the fifth device functions as a cascode device.
A system for converting a single-ended signal to differential signals, comprising:
- a first device configured to convert a current to voltage;
- a second device coupled to the first device;
- a third device coupled to the first device and second device, wherein not one of the first, second, and third device is directly connected to ground and wherein the current is amplified by a gain of more than two;
- and
- a sixth device coupled with the third device, wherein the sixth device functions as a cascode device.
A system for converting a single-ended signal to differential signals, comprising:
- first device configured to convert a current to voltage;
- a second device coupled to the first device;
- a third device coupled to the first device and second device, wherein not one of the first, second, and third device is directly connected to ground and wherein the first, second, and third device are configured to amplify the current by a gain of more than two;
- and
- wherein the first device, the second device and the third device are connected at a common source.
Dependencies are inferred from the claim text.