| 摘要 |
Provided is a self-calibration current source system, which comprises: a current source, and also comprises: a self-calibration resistor array, which is arranged in a manner related to an internal resistor array of the current source; a comparator, which compares the voltage of the self-calibration resistor array to that of an output terminal resistor of a chip; and a control module which receives a comparison result from the comparator, and outputs a control signal according thereto, so as to control the self-calibration resistor array and the internal resistor array associated with the self-calibration resistor array. The self-calibration current source system of the present invention can be automatically adjusted, so as to enable the resistance of the internal resistor array to be equal to that of the output terminal resistor. |
