Title :
Positive feedback gain-enhancement techniques for amplifier design
Author :
Schlarmann, M.E. ; Malik, S.Q. ; Geiger, R.L.
Author_Institution :
Iowa State Univ., Ames, IA, USA
Abstract :
In contrast to the widespread myth that positive feedback or even unstable, open-loop amplifiers will produce unstable feedback amplifiers, it is shown that positive feedback amplifiers, can be used for realizing stable and useful feedback amplifiers. The benefits of using positive feedback for DC gain enhancement without compromising the settling time or the frequency response of feedback amplifiers are discussed
Keywords :
circuit stability; feedback amplifiers; DC gain enhancement; circuit stability; design technique; frequency response; open-loop amplifier; positive feedback amplifier; settling time; Capacitors; Charge transfer; Circuits; Feedback amplifiers; Frequency response; Low voltage; Negative feedback; Operational amplifiers; Stability; State feedback;
Conference_Titel :
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
Conference_Location :
Phoenix-Scottsdale, AZ
Print_ISBN :
0-7803-7448-7
DOI :
10.1109/ISCAS.2002.1010917
