Electronics - Special-Purpose Op-Amp Circuits - Discussion
Discussion Forum : Special-Purpose Op-Amp Circuits - General Questions (Q.No. 11)
11.
The voltage gain of an OTA can be calculated using the formula
Discussion:
1 comments Page 1 of 1.
Sujeet kumar said:
1 decade ago
A transconductance amplifier basically computes a tanhyperbolic.
It operates linearly for a very small range of inputs and smoothly transits to saturation.
Gm = Ic/2 Vt.
Then the voltage gain Av is
Av = gm.Rl =Ic.Rl/2Vt
Thus the voltage gain of the OTA CKT can be externally controlled by the control current Ic.
It operates linearly for a very small range of inputs and smoothly transits to saturation.
Gm = Ic/2 Vt.
Then the voltage gain Av is
Av = gm.Rl =Ic.Rl/2Vt
Thus the voltage gain of the OTA CKT can be externally controlled by the control current Ic.
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