Animation of a current-input amplifier

This is a conventional inverting amplifier driven from a current source instead of a voltage source.  The result is that the input resistor doesn't really matter (a resistor in series with a current source can't matter) and the output is the same as in the previous circuit that had no input resistor.  The values are: 1 k input resistor, 5 k output resistor, 1 mA input current (peak), op-amp gain 10,000.