Realization of (g/sub m/-C) current mode filters from associated (g/sub m/-C) voltage mode filters
Most of the work done in the last decade on current-mode (CM) filters has been based on designing a CM filter from a voltage-mode (VM) filter that uses voltage amplifiers. It is shown in this paper that by using the concept of network transposition, introduced in 1971, by Bhattacharyya and Swamy that a VM filter built with an operational transconductance amplifier (OTA), i.e., a g/sub m/-C VM filter, can be easily transformed into a g/sub m/-C CM filter using the same OTA as the active device.