| 摘要 |
In a multicollector constant current source commonly used as a resistor in low power ICs (frequency divider for watches), there is provided a current supply transistor having a low base substrate capacitance and a multicollector current splitting transistor. A current supply transistor and a multicollector current distribution transistor are provided. A regulating amplifier having an output coupled to the base of the current supply transistor and having inputs coupled to at least one collector of the multicollector transistor extracts a reference voltage for keeping the current flowing in the collector constant.
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