Title :
Current mirror circuit with accurate mirror gain for low β transistors
Author :
Chen, Huiting ; Whiteside, Frank ; Geiger, Randall
Author_Institution :
Iowa State Univ., Ames, IA, USA
Abstract :
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
Keywords :
analogue integrated circuits; current mirrors; monolithic integrated circuits; accurate mirror gain; cascoded output stage; current mirror circuit; high output impedance; low β transistors; source-coupled transistor pair; split factor; split-collector transistor; Bipolar transistor circuits; Bipolar transistors; CMOS process; Frequency response; Impedance; Mirrors; Modems; Semiconductor diodes; Voltage;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921911
