Abstract
Abstract A novel implementation of temperature independent current reference is proposed in this thesis. Based on the traditional bandgap circuit, a current reference is realized by compensating the temperature performance of the resistor, which can start correctly and work properly with a power supply voltage above 1.5V. Thus, a current reference independent and power supply voltage variations is proposed. A regulated feedback cascode current mirror is also proposed in this thesis. The current mirror is composed of the following three parts: the high accurate current matching circuit, the regulated high output resistance circuit and the wide voltage swing input circuit.