Patent ID: 8278995
Filing Date: 2012-10-02
Classification: G05F

Abstract:
1. An apparatus including bandgap voltage reference circuitry, comprising: first and second power supply electrodes to convey a power supply voltage; current mirror circuitry coupled to said first power supply electrode and responsive to said power supply voltage and a first clamped voltage by providing first and second currents; bandgap reference circuitry coupled between said current mirror circuitry and said second power supply electrode, and responsive to said power supply voltage, said first and second currents and said first clamped voltage by providing a bandgap reference voltage; and first voltage clamp circuitry coupled to said first power supply electrode, said current mirror circuitry and said bandgap reference circuitry, and responsive to said power supply voltage and said first clamped voltage by preventing said first clamped voltage from exceeding a first predetermined value.