Output buffer circuit
First Claim
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1. An output driver circuit, comprising:
- at least a first driver transistor having a course-drain path coupled between a first power supply node and an output node;
a first variable current supply that generates a current having at least one component that is inversely proportional to a power supply voltage;
a first driver switch element coupled in series with the first variable current supply between a gate of the at least first driver transistor and a second power supply node, wherein the first driver switch and the first variable current supply are configured to control a rise time and a fall time of the output driver circuit.
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Abstract
An output driver circuit can include at least a first driver transistor having a source-drain path coupled between a first power supply node and an output node. A first variable current supply can generate a current having at least one component that is inversely proportional to a power supply voltage. A first driver switch element can be coupled in series with the first variable current supply between a gate of the at least first driver transistor and a second power supply node.
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Citations
6 Claims
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1. An output driver circuit, comprising:
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at least a first driver transistor having a course-drain path coupled between a first power supply node and an output node; a first variable current supply that generates a current having at least one component that is inversely proportional to a power supply voltage; a first driver switch element coupled in series with the first variable current supply between a gate of the at least first driver transistor and a second power supply node, wherein the first driver switch and the first variable current supply are configured to control a rise time and a fall time of the output driver circuit. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification