An accurate current source with on-chip self-calibration circuits for low-voltage differential transmitter drivers

Author

Zhang, Guangbin ; Liu, Jin ; Sungyong Jung

Author_Institution

Dept. of Electr. Eng., Texas Univ., Dallas, TX, USA

Volume

2

fYear

2003

fDate

25-28 May 2003

Abstract

An accurate CMOS current source for current-mode low-voltage differential transmitter drivers has been designed and fabricated. It is composed of binary weighted current mirrors with built-in switch-cap based self-calibration circuits. Experimental results show that it achieves the specified ±1% accuracy with 16% reference current variation, 42% power supply variation, 10% load variation, and CMOS process variation respectively.

Keywords

CMOS analogue integrated circuits; calibration; constant current sources; current mirrors; current-mode circuits; driver circuits; low-power electronics; CMOS; binary weighted current mirrors; built-in switch-cap based circuits; current source; current-mode low-voltage differential transmitter drivers; load variation; on-chip self-calibration circuits; power supply variation; process variation; reference current variation; Binary codes; Calibration; Costs; Driver circuits; Manufacturing; Mirrors; Switches; Transmitters; Tunable circuits and devices; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on

Print_ISBN

0-7803-7761-3

Type

conf

DOI

10.1109/ISCAS.2003.1205931

Filename

1205931