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Bandgap Reference Circuits for Providing Accurate Sub-1V Voltages
Bandgap Reference Circuits for Providing Accurate Sub-1V Voltages
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机译:带隙基准电路,可提供准确的低于1V的电压
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摘要
A reference voltage circuit includes a first PMOS device having a first source, a first gate, and a first drain, wherein the first source is coupled to a power supply node; and a second PMOS device having a second source, a second gate and, a second drain. The second source is coupled to the power supply node. The first and the second PMOS devices have constant source-drain currents. The reference voltage circuit further includes a third PMOS device having a third source, a third gate, and a third drain; and a resistor coupled between the third drain and the ground. The third source is coupled to the power supply node. The first, the second, and the third gates are interconnected. The first, the second, and the third drains are virtually interconnected.
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