Does the Equation Vout=-Iin*Rf Always Apply in Current-to-Voltage Converters?

[Midas_Touch]

I have attached a diagram of the circuit I have a question about.

In this current-to-voltage converter circuit, Rf = 1 k ohm. I was wondering if v out would equal Vout=-Iin*Rf where I in is the input current. If I varied the current, say 1-7 amps, would the above equation apply? How about if I varied the Rf? Would the same equation still apply?

Also, since the voltage adder and the inverting amplifier are similar to the current-voltage converter, how can I show that those circuits can be analyzed as current to voltage converter, as in vout = Iin*Rf?

I'd appreciate any suggestions...

 

[berkeman]

Well, yes, except that most opamps are run in the 1-10mA range. Other than that, you are on track.