METHODS AND APPARATUS TO IMPROVE PERFORMANCE OF VOLTAGE TO DELAY CONVERTERS

    公开(公告)号:US20250080096A1

    公开(公告)日:2025-03-06

    申请号:US18241080

    申请日:2023-08-31

    Abstract: An example apparatus includes programmable circuitry configured to: provide a sample signal, a time amplification (TA) signal, and a kick signal to sample and conversion circuitry; sample a differential signal for a first amount of time-based on the sample signal; charge a first capacitor for a second amount of time-based on the first kick signal; after the first amount of time and the second amount of time, charge a second capacitor, the charging based on the first TA signal, the charging to cause a falling edge in a first delay signal; and generating, a rising edge in the delay signal based on the falling edge of O_RST signal.

    Reduced noise dynamic comparator for a successive approximation register analog-to-digital converter

    公开(公告)号:US11095300B2

    公开(公告)日:2021-08-17

    申请号:US16904604

    申请日:2020-06-18

    Abstract: A comparator circuit includes a first transistor configured to receive a first input and a second transistor configured to receive a second input. The comparator circuit further includes a third transistor coupled to a terminal of each of the first and second transistors. The third transistor is configured to be controlled by a first control signal. A gate of a fifth transistor is coupled to a terminal of a fourth transistor at a first node and a gate of the fourth transistor is coupled to a terminal of the fifth transistor at a second node. A sixth transistor is coupled between the first and fourth transistors. A seventh transistor is coupled between the second and fifth transistors. A gate of the sixth transistor and a gate of the seventh transistor are coupled together at a fixed voltage level.

    REDUCED NOISE DYNAMIC COMPARATOR FOR A SUCCESSIVE APPROXIMATION REGISTER ANALOG-TO-DIGITAL CONVERTER

    公开(公告)号:US20200321970A1

    公开(公告)日:2020-10-08

    申请号:US16904604

    申请日:2020-06-18

    Abstract: A comparator circuit includes a first transistor configured to receive a first input and a second transistor configured to receive a second input. The comparator circuit further includes a third transistor coupled to a terminal of each of the first and second transistors. The third transistor is configured to be controlled by a first control signal. A gate of a fifth transistor is coupled to a terminal of a fourth transistor at a first node and a gate of the fourth transistor is coupled to a terminal of the fifth transistor at a second node. A sixth transistor is coupled between the first and fourth transistors. A seventh transistor is coupled between the second and fifth transistors. A gate of the sixth transistor and a gate of the seventh transistor are coupled together at a fixed voltage level.

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