Title :
Sallen and Key Filter Networks with Amplifier Gain Larger than or Equal to Unity
fDate :
9/1/1967 12:00:00 AM
Abstract :
Noninverting operational amplifiers cannot readily be used for various Sallen and Key filters because they cannot provide gain less than unity. A simple network modification is suggested that overcomes this limitation and introduces an added degree of freedom with parameters that are determined by passive components only.
Keywords :
Amplifiers; Filters; Active filters; Damping; Design methodology; Frequency; Network synthesis; Operational amplifiers; Resistors; Semiconductor optical amplifiers; Transfer functions; Voltage;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.1967.1049803
