The Circuit Diagram of Q-adjustable Band-stop Filter (741)

Published:2011/8/8 21:43:00 Author:Felicity | Keyword: Band-stop Filter , Q-adjustable | From:SeekIC

The notch frequency and the stability of Q depend on the passive components in the T-network. Appropriate components can make up a stable filter in this way. To build up a notch filter of high stability, passive components of high precision is needed besides high-performance operational amplifier. If R and C have the opposite temperature coefficient and R1, R have the same temperature coefficient, ω0 and Q are stable.



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