Part Number:OPA172
The OPA172 is connected in a constant current source configuration. I'm having a hard time understanding what the impedance will be when measuring between R3 at 10kHz. If you measure the impedance between R3 at 10kHz, will the impedance be:
Output Impedance of Opamp at 10kHz (1 ohm) to ground,
up R1 from ground (100 ohms). Total impedance at 10kHz is 101 ohms at 10kHz?
