Fast OTA amplifiers LT1228 are today available. Their transconductance can be controlled continuously by an auxiliary current. This opens up interesting possibilities of discrete realizations of active filters with electronically controlled parameters in the frequency band of about 1 MHz.
Fast OTA amplifiers LT1228 are today available. Their transconductance can be controlled continuously by an auxiliary current. This opens up interesting possibilities of discrete realizations of active filters with electronically controlled parameters in the frequency band of about 1 MHz. (en)