Title :
A low-voltage MOS cascode current mirror for all current levels
Author :
Minch, Bradley A.
Author_Institution :
Sch. of Electr. & Comput. Eng., Cornell Univ., Ithaca, NY, USA
Abstract :
In this paper, we describe a simple low-voltage MOS cascode current mirror that functions well at all current levels, ranging from weak inversion to strong inversion. The circuit features a wide output voltage swing and requires an input voltage of approximately one diode drop plus a saturation voltage. We present experimental results from a version of the current mirror that was fabricated in a 0.5 μm CMOS process along with a comparison with several other current mirrors with respect both to required input voltage and to output compliance voltage.
Keywords :
MOS analogue integrated circuits; current mirrors; integrated circuit design; integrated circuit measurement; low-power electronics; 0.5 micron; CMOS process; MOS current mirror; cascode current mirror; diode voltage drop; input voltage; low-voltage current mirror; output compliance voltage; output voltage swing; saturation voltage; strong inversion current levels; weak inversion current levels; Analog integrated circuits; CMOS process; Diodes; Immune system; Low voltage; MOSFETs; Mirrors; Resistors; Signal design; Signal processing;
Conference_Titel :
Circuits and Systems, 2002. MWSCAS-2002. The 2002 45th Midwest Symposium on
Print_ISBN :
0-7803-7523-8
DOI :
10.1109/MWSCAS.2002.1186795
