Systems and methods for data conversion
AssigneeFreescale Semiconductor, Inc.
InventorsJames R. Feddeler, Michael T. Berens
Life of this patent
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Abstract
Systems and methods for electronically converting an analog signal to a digital signal are disclosed. The systems and methods may include, for a first bit value, setting a first conversion value to include a first offset; using the output of a first comparison, setting a second conversion value; and if the first bit value has a predetermined relationship to the first offset bit value, removing the first offset from the second conversion value, and, using the output of a second comparison, setting a third conversion value.
Claims20
A system for converting an analog signal to a digital signal, the system comprising:
- a redundancy element operable to provide an offset range;
- a comparator coupled to a digital-to-analog converter (DAC), the comparator operable to compare a reference to an output associated with the DAC;
- a control circuit coupled to the redundancy element, the control circuit operable to, for a first bit value:
- communicate a first conversion value to the DAC, the first conversion value including a first offset, the first offset associated with a first offset bit value;
- in response to a first comparison result from the comparator, setting a second conversion value;
- and
- if the first bit value has a predetermined relationship to the first offset bit value, remove the first offset from the second conversion value;
- and
- in response to a second comparison result from the comparator, setting a third conversion value.
A method for electronically converting an analog signal to a digital signal, the method comprising:
- for a first bit value, setting a first conversion value to include a first offset, the first offset associated with a first offset bit value;
- using the output of a first comparison, setting a second conversion value;
- and
- if the first bit value has a predetermined relationship to the first offset bit value, removing the first offset from the second conversion value;
- and using the output of a second comparison, setting a third conversion value,
- wherein setting the first conversion value comprises charging a bottom plate of a capacitor associated with the first bit value.
(canceled)
Dependencies are inferred from the claim text.