Title :
32 taps digitally controlled buffered potentiometer
Author :
Stanescu, Cornel ; Tache, Adrian ; Iacob, Radu
Author_Institution :
Essex Com. Ltd., Bucharest, Romania
Abstract :
The paper presents a 32-tap digitally controlled buffered potentiometer designed in a 0.8 μm CMOS process. An up/down counter determines which tap is connected to the output. Output settings are stored in nonvolatile memory. A rail-to-rail op amp is used as unity-gain buffer at the output in order to eliminate the errors given by the load
Keywords :
CMOS integrated circuits; buffer circuits; counting circuits; integrated circuit design; integrated circuit measurement; operational amplifiers; potentiometers; random-access storage; 0.8 micron; CMOS process; digitally controlled buffered potentiometer; load errors; multi-tap digitally controlled buffered potentiometer; nonvolatile memory; output setting storage; rail-to-rail op amp; tap output connection; unity-gain buffer; up/down counter; CMOS process; Counting circuits; Decoding; Digital control; EPROM; Operational amplifiers; Potentiometers; Resistors; Switches; Voltage control;
Conference_Titel :
Semiconductor Conference, 2001. CAS 2001 Proceedings. International
Conference_Location :
Sinaia
Print_ISBN :
0-7803-6666-2
DOI :
10.1109/SMICND.2001.967523
