Title :
A high compliance CMOS current source for low voltage applications
Author :
Quarantelli, Michele ; Poles, Marco ; Pasotti, Marco ; Rolandi, Pierluigi
Author_Institution :
Brescia Univ., Italy
Abstract :
This paper presents a novel CMOS current source suitable for low voltage applications. The new design shows better compliance voltage than the simple two transistor current mirror while offering improved accuracy and output impedance, featuring 140 KΩ output resistance at an output voltage of 30 mV and output current of 30 μA. The circuit has been manufactured in a 0.25 μm, 2.5 V power supply digital CMOS process from STMicroelectronics.
Keywords :
CMOS analogue integrated circuits; constant current sources; current mirrors; low-power electronics; 0.25 micron; 140 kohm; 2.5 V; 30 mV; 30 muA; CMOS current source; compliance voltage; current mirror; low-voltage design; output impedance; CMOS process; Circuits; Impedance; Low voltage; Manufacturing processes; Mirrors; Modems; Power supplies; Threshold voltage; Voltage control;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205591
