Samsung Electronics Co., Ltd.

Wing-Fai Loke

Chih-Wei Yao

An apparatus and a method are provided. The apparatus includes an analog-to-digital converter (ADC) driver; and an ADC that is electrically coupled to the ADC driver. The method includes setting, by an analog-to-digital converter (ADC) driver, a desired common-mode control value based on the held voltage; and setting, by the ADC driver, a desired gain control value based on the held voltage.

System and method of calibrating input signal to successive approximation register (SAR) analog-to-digital converter (ADC) in ADC-assisted time-to- digital converter (TDC)

A system and method for calibrating a duration of a pulse or a delay. A reference clock signal includes a sequence of reference pulses, and controls a switch in a first charge pump that is configured to charge a first capacitor. Each of a sequence of test pulses controls a switch in a second charge pump that is configured to charge a second capacitor. At the end of each charging cycle, the respective capacitor voltages are compared and the duration of the test pulses is adjusted, by a feedback circuit, in a direction tending to make the capacitor voltages equal. When the capacitor voltages are equal, the ratio of the lengths of the reference pulses and test pulses equals the ratio of the capacitances, if the charge pumps deliver the same current when switched on.

System and method for calibrating pulse width and delay

An apparatus and a method. The apparatus includes a counter array; a ring oscillator that is electrically coupled to the counter array, where the counter array counts a number of cycles in the ring oscillator; an analog-to-digital converter (ADC) driver that is electrically coupled to the ring oscillator; and an ADC that is electrically coupled to the ADC driver, where an output of the ADC is electrically coupled to the ring oscillator.

System and method of calibrating input signal to successive approximation register (SAR) analog-to-digital converter (ADC) in ADC-assisted time-to-digital converter (TDC)

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Wing-Fai Loke