Current Mirror Circuit with Accurate Mirror Gain for Low Β Transistors
نویسندگان
چکیده
A new current mirror with accurate mirror gain for low β transistors is presented. The new current mirror employs a cascoded output stage to provide high output impedance. High mirror gain accuracy is achieved by using a split-collector transistor to compensate for base currents of the source-coupled transistor pair. The split factor is dependent on the desired mirror gain and the nominal β value.
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