Title :
3.3-V line drivers for digital subscriber line applications
Author :
Joongho Choi ; Lim, Jinip ; Noh, Simngwon ; Shin, Jaeyoung ; Kim, Kwangoh
Author_Institution :
Dept. of Electr. Eng., Seoul Univ., Seoul, South Korea
Abstract :
In this paper, we designed 3.3-V line drivers for DSL (digital subscriber line) applications. The line driver consists of pre-amplifier, error amplifiers, output transistors, and quiescent current (IQ) control circuits. A new method is proposed for the quiescent current control circuit in order to obtain high linearity performance. One driver is designed for ISDN U-interface and the other for HDSL applications. Both drivers are fabricated in a 0.35-μm n-well CMOS technology and THD (total harmonic distortion) better than -64 dB is achieved
Keywords :
CMOS analogue integrated circuits; digital subscriber lines; driver circuits; harmonic distortion; low-power electronics; 0.35 micron; 3.3 V; CMOS technology; HDSL; ISDN U-interface; analog front-end; digital subscriber line; error amplifier; line driver; linearity; output transistor; pre-amplifier; quiescent current control circuit; total harmonic distortion; CMOS technology; DSL; Digital filters; Driver circuits; ISDN; Linearity; Modems; Power supplies; Very large scale integration; Voltage;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921955
