共 7 条
[1]
ACTIVE R-FILTERS - REVIEW OF THEORY AND PRACTICE
[J].
IEE JOURNAL ON ELECTRONIC CIRCUITS AND SYSTEMS,
1978, 2 (04)
:89-101
[2]
FREQUENCY LIMITATIONS OF ACTIVE FILTERS USING OPERATIONAL AMPLIFIERS
[J].
IEEE TRANSACTIONS ON CIRCUIT THEORY,
1972, CT19 (04)
:322-&