Low consumption hybrid low-pass ARC-filters for 1 MHz band

In contemporary electronics low consumption analog CT ARC-filters are of a great significance for employing in areas of communication, instrumentation, security systems, etc. The design of such filters for operation in 1-MHz band is not a quite ordinary problem. The traditional solution is the design of complex CMOS schematics (filter itself, frequency tuning system, etc). Meanwhile the ARC-filter, based upon a ladder RC-circuit and having the minimal number of special active elements, is rather convenient. This design provides the lower power consumption as well as simpler network. Such filter for supply voltage 2.5...3.3 V and power consumption 0.7...2.1 mW may be realized in the 0.4 mm/sup 2/ are on a hybrid chip. The principles and examples of the design are considered. The goal of this work is to show the possibility to solve the design problem in a simple schematic basis.