Title :
Accurate current mirror with high output impedance
Author :
Cheng, Kuo-Hsing ; Chen, Chi-Che ; Chung, Chun-Fu
Author_Institution :
Dept. of Electr. Eng., Tamkang Univ., Tamsui, Taiwan
fDate :
6/23/1905 12:00:00 AM
Abstract :
The current mirror is one of the key elements in analog circuit design. For high performance analog circuit applications, the accuracy and output impedance are the most important parameters to determine the performance of the current mirror. In this paper, a new current mirror is proposed to provide high accuracy and very high output impedance. A novel feedback gain stage is used to increase the output impedance and matching accuracy significantly. Moreover, the proposed new current mirror also has an output swing similar to the traditional two-stage cascode current mirror
Keywords :
CMOS analogue integrated circuits; current mirrors; electric impedance; impedance matching; IP4M CMOS process; analog circuit design; current mirror; feedback gain stage; high accuracy; high output impedance; matching accuracy; Analog circuits; Current mode circuits; Impedance matching; MOSFETs; Microelectronics; Mirrors; Output feedback; Power supplies; Temperature; Voltage;
Conference_Titel :
Electronics, Circuits and Systems, 2001. ICECS 2001. The 8th IEEE International Conference on
Print_ISBN :
0-7803-7057-0
DOI :
10.1109/ICECS.2001.957539
