Title :
Low-voltage current operational amplifier with a very low current consumption
Author_Institution :
Dept. of Inf. Technol., Tech. Univ., Lyngby, Denmark
Abstract :
A `digital´ approach to the design of current operational amplifiers is introduced. Using CMOS inverters only, the layout of the resulting circuit can be designed exploiting standard digital cells libraries. An example current operational amplifier operating at a 2 V supply voltage and consuming a quiescent supply current less than 4.2 μA, while maintaining an output current range of more than ±35 μA, is presented. The performance of the circuit was verified by simulations on PSPICE
Keywords :
CMOS integrated circuits; SPICE; circuit CAD; circuit analysis computing; logic gates; operational amplifiers; -35 to 35 muA; 2 V; CMOS inverters; PSPICE simulation; current consumption; current operational amplifier; output current range; quiescent supply current; standard digital cell libraries; CMOS technology; Circuit simulation; Current supplies; Inverters; Low voltage; MOSFETs; Operational amplifiers; Software libraries; Threshold voltage; Transconductance;
Conference_Titel :
Circuits and Systems, 1996. ISCAS '96., Connecting the World., 1996 IEEE International Symposium on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3073-0
DOI :
10.1109/ISCAS.1996.540000
