| 摘要 |
A reference voltage generating circuit comprises a differential amplifier having a first input connected to receive a constant voltage and a second input connected through a voltage feedback path to an output of the differential amplifier so as to receive a voltage in proportion to an a first reference voltage outputted from the differential amplifier. A voltage divider composed of series-connected resistors is connected to the output of the differential amplifier so as to form a current path independent of the voltage feedback path, so that the voltage divider generates a second reference voltage different from the first reference voltage. Thus, a single reference voltage generating circuit generates a plurality of reference voltages.
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