Digital to analog converter and dynamic current mirror structure to simplify on-chip wave shaping
First Claim
Patent Images
1. A digital to analog conversion circuit, comprising:
- circuitry for converting a sequence of positive digital data samples into a first electrical current and for converting a sequence of negative digital data samples into a second electrical current;
current mirror circuitry that generates an analog waveform by combining and amplifying the first and second electrical currents.
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Abstract
A digital to analog converter that includes circuitry that converts sequences of positive and negative digital data samples into electrical currents and current mirror circuitry that generates an analog waveform by combining and amplifying the electrical currents.
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Citations
1 Claim
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1. A digital to analog conversion circuit, comprising:
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circuitry for converting a sequence of positive digital data samples into a first electrical current and for converting a sequence of negative digital data samples into a second electrical current; current mirror circuitry that generates an analog waveform by combining and amplifying the first and second electrical currents.
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Specification
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- Resources
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Current AssigneeRPX Corporation
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Original AssigneeAdvanced Micro Devices, Inc.
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InventorsCheng, Yi, Runaldue, Thomas Jefferson
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Primary Examiner(s)Gaffin, Jeffrey A.
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Assistant Examiner(s)YOUNG, BRIAN K
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Application NumberUS08/599,653Time in Patent Office792 DaysField of Search341/135, 341/143US Class Current341/135CPC Class CodesH03M 1/662 Multiplexed conversion systemsH03M 1/745 with weighted currentsH03M 1/747 with equal currents which a...
