Title :
Ultra low voltage current mirror op amp and its applications
Author :
Rajput, S.S. ; Jamua, S.S.
Author_Institution :
Thin Film Technol. Group, Nat. Phys. Lab., New Delhi, India
Abstract :
This paper discusses the design of low voltage current mirror op amps and their applications. The proposed op amp structure can be used with ±0.5 V supply voltages and has an open loop gain of 75.2 dB. Its applications in the design of low voltage buffers, and subsequently in the design of CCIIs, have been examined. The voltage buffer has almost rail-to-rail input and output voltage swings and a bandwidth of 530 MHz. The proposed CCIIs have almost rail-to-rail current transfer with a bandwidth of 690 MHz.
Keywords :
CMOS analogue integrated circuits; SPICE; buffer circuits; circuit simulation; current conveyors; current mirrors; integrated circuit design; integrated circuit modelling; low-power electronics; operational amplifiers; -0.5 to 0.5 V; 530 MHz; 690 MHz; 75.2 dB; CCII bandwidth; CCII rail-to-rail current transfer; CMOS ultra low voltage current mirror op amps; P-Spice; buffer bandwidth; buffer rail-to-rail input/output voltage swings; current conveyors; low voltage buffer circuits; op amp supply voltages; open loop gain; operational amplifiers; Bandwidth; Impedance; Laboratories; Low voltage; MOSFET circuits; Mirrors; Operational amplifiers; Photovoltaic cells; Solar power generation; Transistors;
Conference_Titel :
Circuits and Systems, 2002. APCCAS '02. 2002 Asia-Pacific Conference on
Print_ISBN :
0-7803-7690-0
DOI :
10.1109/APCCAS.2002.1114925
