Title :
Bipolar, wideband, bias current source
Author :
Lantz, Mark ; Floberg, Henrik
Author_Institution :
Dept. of Appl. Electron., Lund Univ., Sweden
Abstract :
A scheme for implementing wideband, bias current sources in monolithic, bipolar technology is presented and analyzed. The scheme allows realization of more linear radio-frequency amplifiers. The method is particularly useful when large bias currents have to be handled, a situation that frequently occurs in the first amplifying stage in a low-noise amplifier. Numerical experiments have been made, showing substantial increase in amplifier loop gain
Keywords :
bipolar analogue integrated circuits; constant current sources; feedback amplifiers; radiofrequency amplifiers; amplifier loop gain; amplifying stage; bias current source; bipolar technology; linear radio-frequency amplifiers; low-noise amplifier; Broadband amplifiers; CMOS technology; Capacitors; Circuit synthesis; Low-noise amplifiers; Negative feedback; Radio frequency; Radiofrequency amplifiers; Resistors; Wideband;
Conference_Titel :
Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-5471-0
DOI :
10.1109/ISCAS.1999.780663
