DEVICE AND METHODS FOR RECONFIGURABLE ANALOG INPUT MONITORING

    公开(公告)号:US20250158629A1

    公开(公告)日:2025-05-15

    申请号:US18440552

    申请日:2024-02-13

    Abstract: An ADC system may include an ADC, a comparator, a voltage source, a comparator output polarity control circuit and a comparator output counter. An analog input signal may be input to a first input of the comparator, and an output of the voltage source may be input to a second input of the comparator. The comparator may generate an output to the comparator output polarity control circuit, and the comparator output counter may count clock cycles while the comparator output is asserted and may assert a monitor output based on the comparator output counter value. The monitor output may be an interrupt, an alarm or other system alerts and may control system operation.

    SIMPLIFIED CURVATURE COMPENSATED BANDGAP USING ONLY RATIOED COMPONENTS

    公开(公告)号:US20230161369A1

    公开(公告)日:2023-05-25

    申请号:US17681021

    申请日:2022-02-25

    CPC classification number: G05F3/225 G05F1/461

    Abstract: A curvature compensated bandgap circuit that is capable of matching best-in-class two (2) parts-per-million performance without over-temperature trimming. This improves performance metrics for precision voltage reference products without requiring individual device tuning during production thereof. A core bandgap circuit comprises a main operational amplifier having a second order bowed voltage response over temperature. A ptat circuit is coupled to the core bandgap circuit to provide a sigmoidal third order shape for the bandgap voltage.

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