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AssigneeTexas Instruments Incorporated
InventorsAmit Kumar Gupta, Karthikeyan Soundarapandian, Yong-In Park, Wern Ming Koe
Estimating the term…
Delta-sigma analog-to-digital converters (ADCs) and methods to calibrate methods to delta-sigma ADCs are disclosed. In one particular example, a delta-sigma ADC is described, including an n-bit feedback digital-to-analog converter (DAC) having a number of unit elements, and is configured to provide a feedback signal to a summing device, which generates a difference signal based on an analog input signal and the feedback signal. An n-bit ADC is included to generate an n-bit digital signal based on the difference signal. A dynamic element matching device selects one or more unit elements in the DAC based on the n-bit digital signal. A storage device, such as a memory, stores error coefficients corresponding to the plurality of unit elements. Finally, a digital corrector is included to receive the selection of unit elements, receive error coefficients corresponding to the selected unit elements, and adjust the n-bit digital signal based on the received error coefficients.
A delta-sigma analog-to-digital converter (ADC), comprising:
A method to calibrate a delta-sigma analog-to-digital converter (ADC), comprising:
A system to provide a calibrated delta-sigma analog-to-digital converter (ADC), comprising:
Dependencies are inferred from the claim text.