Apparatus and method for analog-to-digital converter calibration
First Claim
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1. An analog-to-digital converter (ADC), comprising:
- a reference voltage generator configured to generate reference voltages;
an analog to digital converter core configured to receive an input signal and the reference voltages and to generate a digital signal representative of the input signal, the digital signal having a number of bits; and
a controller configured to determine a quality of the input signal, and, based on a quality of the input signal, to control the number of bits of the digital signal and values of the reference voltages.
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Abstract
An analog-to-digital converter (ADC) is provided. The ADC includes a reference voltage generator configured to generate reference voltages, an analog to digital converter core configured to receive an input signal and the reference voltages and to generate a digital signal representative of the input signal, the digital signal having a number of bits, and a controller configured to determine a quality of the input signal, and, based on a quality of the input signal, to control the number of bits of the digital signal and values of the reference voltages.
40 Citations
20 Claims
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1. An analog-to-digital converter (ADC), comprising:
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a reference voltage generator configured to generate reference voltages; an analog to digital converter core configured to receive an input signal and the reference voltages and to generate a digital signal representative of the input signal, the digital signal having a number of bits; and a controller configured to determine a quality of the input signal, and, based on a quality of the input signal, to control the number of bits of the digital signal and values of the reference voltages. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An analog to digital converter (ADC), comprising:
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an analog to digital converter core configured to receive an input signal and reference voltages and to generate a digital signal representative of the input signal; and a controller configured to transition the analog to digital converter core from a first state to a second state based on a quality of the input signal, wherein, in the first state, the analog to digital converter core has a first number of elements active and, in the second state, the analog to digital converter core has a second number of elements active and wherein the first number and the second number are different. - View Dependent Claims (12, 13)
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14. An analog-to-digital converter (ADC), comprising:
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means for generating reference voltages; an analog to digital converter core configured to receive an input signal and the reference voltages and to generate a digital signal representative of an input signal, the digital signal having a number of bits; and means for determining a quality of the input signal, and controlling, based on a quality of the input signal, the number of bits of the digital signal and values of the reference voltages. - View Dependent Claims (15, 16, 17)
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18. A method of analog to digital conversion, comprising:
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determining a quality of an input signal, wherein an analog to digital converter core generates a digital signal representative of the input signal using reference voltages, the digital signal having a number of bits; controlling the number of bits based on the determined quality; and controlling values of the reference voltages based on the quality of the input signal. - View Dependent Claims (19, 20)
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Specification