Is this a tranresistance amplifier?

[ashes]

Hi, the circuit attached, I figured out to be tranresistance amplifier? Am I right?

 

[ericgibbs]

Look at this link.
https://www.google.com/search?q=tra...TAYPkyAOUhIGIBw&ved=0CDkQsAQ&biw=1393&bih=920

EDIT:
This maybe more helpful.
https://www.globalspec.com/referenc...ance-amplifier-and-transconductance-amplifier

 

[MrAl]

Hi,

Strictly speaking, that's probably not considered a transresistance amplifier, even though it could be used as one.

If you recall that an FET has a transconductance because the input is in the form of a voltage while the output is in the form of a current. So it is a voltage to current converter of a sort.
A device that had transresistance would take the input as a current and output a voltage, which is the dual of transconductance.

So if you did use that circuit in the schematic for a transresistance amplifier, the input resistor would be superfluous so it would not make sense to include it. It would make more sense here to connect the resistor from the input to ground, then use a current as input rather than a voltage.
This would be more true to a circuit with transresistance.

Note that a single resistor is like a transresistance amplifier in itself if the load resistor is more than maybe 20 times the resistor value because a resistor naturally converts a current into a voltage.