| 摘要 |
In one embodiment the present invention includes circuits and methods for calibrating switching current sources. A difference between a source current and a sink current is detected during a calibration phase. The difference is used to generate a digital signal to adjust a programmable current source to reduce the difference between currents. In one embodiment, a binary search is used to generate the digital signal during an initial calibration phase, and a linear approximation is used to generate the digital signal during an operational calibration phase.
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