Input and Output Impedances of Differential Amplifier

Published: 14/11/2019
Input and Output Impedances of Differential Amplifier
Source: ELECTRONICS.STACKEXCHANGE.COM

I have this circuit that is used to convert an incoming analog differential input signal to a single ended signal. The differential input is connected at IN+, IN- and the output is taken from OUT. I want to calculate input and output impedance's of this differential amplifier. How can I calculate it? Will it change if the power supply of the circuit is changed. Edit: Simplified the circuit image

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