What type of amplifier is this?
A transimipedance amplifier is an amplifier that has a current as input and a voltage as output. Ideally it will have 0 input impedance.
Since this amplifier is being driven with a voltage source, it is being tested as a voltage amplifier and not a transimpedance amplfier.
Since it has a relatively high input impedance (determined by the parallel combination of R1 and R2, which should be fairly high to avoid wasting power), it would not make a very effective transimpedance amplifier if you tried to use it that way.