| 摘要 |
A current source regulator is responsive to an enable signal and provides at least one output current of predetermined magnitude proportional to absolute temperature. The enable signal biases a first transistor for supplying current through its collector-emitter conduction path to the common base of a string of PNP transistors, the latter of which provide the output current. The current flowing in one of the PNP transistors flows through a regulating feedback circuit, the output of which regulates the base voltage of the first transistor to control the base voltage of the PNP transistors for maintaining the current flowing through the regulating feedback circuit at the predetermined value proportional to absolute temperature.
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