CURRENT DIGITAL-TO-ANALOG CONVERTER (DAC) WITH DIRECT-CURRENT (DC) OFFSET CORRECTION
Number of patents in Portfolio can not be more than 2000
United States of America
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N/A
Issued Date -
Dec 19, 2024
app pub date -
Jun 15, 2023
filing date -
Jun 15, 2023
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
Certain aspects of the present disclosure provide a digital-to-analog converter (DAC) circuit. The DAC circuit generally includes: a decoder coupled to an input of the DAC circuit and current-steering cells coupled to an output of the decoder. Outputs of the current-steering cells may be coupled to a positive output node and a negative output node of the DAC circuit. The DAC circuit may also include an offset detection circuit including: a comparator having a first input and a second input selectively coupled to the positive output node and the negative output node; and a digital controller having an input coupled to an output of the comparator and an output coupled to the decoder. In some aspects, the DAC circuit includes one or more calibration DACs coupled to the offset detection circuit.
First Claim
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