Title :
A simple universal LV/LP opamp architecture
Author :
Hwang, Changku ; Motamed, Ali ; Ismail, Mohammed ; Wabara, Hiro Fumi Ku
Author_Institution :
Solid-State Microelectron. Lab., Ohio State Univ., Columbus, OH, USA
Abstract :
In this paper a simple opamp input stage architecture with programmable rail-to-rail constant-gm is presented. The constant-gm is achieved by processing signal, rather than DC, currents. As a result, the architecture is universal in that it can be implemented in any complementary VLSI technology and it functions regardless of transistors operating region. A MOS implementation is discussed and is shown to operate in both weak and strong inversion, resulting in a programmable gm, or unity gain frequency, over a very wide range
Keywords :
CMOS analogue integrated circuits; VLSI; operational amplifiers; MOS implementation; complementary VLSI technology; opamp input stage; programmable rail-to-rail constant-gm; universal LV opamp architecture; Educational institutions; Low voltage; Microelectronics; Rail to rail inputs; Signal design; Signal processing; Solid state circuits; Tail; Transconductance; Very large scale integration;
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.1996.539899
