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Operational transconductance amplifier

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mystique_unbound

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operational transconductance amplifier

Can anybody explain the construction of OTA and why it is being used in the design of filters
 

paulux

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OTA is defined as iout/Vin which means the output current delivered by OTA is governed by the differential voltage across its input.
 

tok47

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the next stage that after the filter should be a capasitive load. So, need a filter that construc by OTA to drive it.
 

angelote

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It is used in filter design because you can replace an inductor by an OTA an a capacitor. Capacitors are better integrated than inductors, so, using OTAs and capacitors you can manufacture more complex and accurate integrated filters.
 

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