Operational Transconductance Amplifier

OTA as Programmable Resistor, Grounded Resistor and Floating Resistor

OTA as Programmable Resistor, Grounded Resistor and Floating Resistor: OTA as a Programmable Resistor: We may employ Ic OTA as a programmable resistor whose resistance is controlled by controlling current Ic. We can define resistance, using Eq. (41.16) Two OTAs can be employed to behave as programmable resistor, as shown in Fig. 41.6. Now to …

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Operational Transconductance Amplifier (OTA)

Operational Transconductance Amplifier (OTA): The operational amplifiers considered up to this point have been voltage amplifiers. The input signal is a voltage and the output signal is a voltage. Another type of op-amp is an operational transconductance amplifier (OTA) which produces an output current proportional to an input voltage. The constant of proportionality is the …

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