Low distortion level shifter
First Claim
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1. A circuit comprising:
- a first device configured to operate at a first supply voltage and generate a first output operating at said first supply voltage;
a second device configured to generate a second output in response to said first output, wherein said second device operates at a second supply voltage different from said first supply voltage; and
a clamp device coupled to each of said first and second devices, wherein said clamp device operates at least at said second supply voltage.
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Abstract
A circuit for generating an output signal in response to an input signal that propagates over devices operating at various supply voltages. The circuit generally comprises a first device operating in a first voltage, a second device operating in a second voltage and a clamp device coupled to each of the first and second devices. The clamp device generally operates at the second supply voltage, which may cause the output signal to be propagated through the circuit with a minimum distortion.
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Citations
9 Claims
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1. A circuit comprising:
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a first device configured to operate at a first supply voltage and generate a first output operating at said first supply voltage; a second device configured to generate a second output in response to said first output, wherein said second device operates at a second supply voltage different from said first supply voltage; and a clamp device coupled to each of said first and second devices, wherein said clamp device operates at least at said second supply voltage. - View Dependent Claims (2, 3, 4)
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5. A circuit comprising:
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means for generating a first output in response to an input, wherein said generating means operates at a first supply voltage; means for generating the second output in response to said first output, wherein said second generating means operates at a second supply voltage; and clamping means coupled to each of said first and second generating means, wherein said clamping means operates at said second supply voltage. - View Dependent Claims (6, 7, 8)
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9. A method for reducing the distortion of a waveform comprising:
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generating a first output operating at a first supply voltage in response to an input; generating a second output operating at a second supply voltage in response to said first output; and clamping each of said first and second outputs, wherein said clamping operates at least at said second supply voltage.
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Specification