Digital-to-analog converter with logarithmic selectable response and methods
AssigneeInfineon Technologies AG
InventorVolker Christ
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Abstract
Embodiments of a digital-to-analog converter (DAC) with a logarithmic response and methods for converting digital signals to analog are generally described herein. Other embodiments may be described and claimed. In some embodiments, the DAC includes a wedge-shaped resistive array having a plurality of linearly-spaced contact nodes and a switching array to selectively couple one of the contact nodes with an analog output based on a control signal. Each of the contact nodes may provide a corresponding reference voltage that varies logarithmically with respect to the linearly-spaced contact nodes.
Claims7
A digital-to-analog converter (DAC) comprising:
- a first wedge-shaped resistive array having a first plurality of linearly-spaced contact nodes;
- a second wedge-shaped resistive array having a second plurality of linearly-spaced contact nodes;
- and
- a switching array to couple each contact node of the first resistive array to a corresponding one of the contact nodes of the second resistive array when a linear response is selected and to open a connection between each contact node of the first resistive array and the corresponding one of the contact nodes of the second resistive array when a non-linear response is selected.
Dependencies are inferred from the claim text.