High frequency active anti-aliasing filters
Philip Karantzalis
Abstract
The LT6600-10, which offers a high performance, 10MHz differential filter with gain, in a small package (SO-8), and the LT1819, an op amp that can be used to create a variety of differential filters up to 20MHz, are described.
Keywords
Anti-aliasing filter
differential filter
LT6600-10
LT1819
Introduction
High frequency (1MHz or higher) active lowpass filters are now practical alternatives to passive LC filters mainly due to the availability of very high bandwidth (100MHz or higher) integrated amplifiers. Analog signal filtering applications with bandwidths in the megahertz region can be implemented by a discrete active filter circuit using resistors, ...
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