DocumentCode
883830
Title
Comments on "A low-pass biquad derived filter realization"
Author
Croskey, C. ; Brodie, J.H.
Volume
12
Issue
3
fYear
1977
fDate
6/1/1977 12:00:00 AM
Firstpage
329
Lastpage
330
Abstract
In the above paper, Brodie (see ibid., vol.SC-11, p.552-5, 1976) presents a biquad low-pass filter which requires only two operational amplifiers. The use of current differencing amplifiers for reduced operational amplifier count implementation of the biquad filter has been around for some time. However, Brodie does not mention that the low-pass form is not the only filter that can be achieved. If one allows one additional resistor for biasing, a true bandpass output is available.
Keywords
Active filters; Low-pass filters; active filters; low-pass filters; Band pass filters; Circuits; Low pass filters; Microwave devices; Microwave filters; Microwave theory and techniques; Microwave transistors; Operational amplifiers; Resistors; Resonance;
fLanguage
English
Journal_Title
Solid-State Circuits, IEEE Journal of
Publisher
ieee
ISSN
0018-9200
Type
jour
DOI
10.1109/JSSC.1977.1050907
Filename
1050907
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