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TLV9002: Output impedance in case of closed loop gain(inverting amplifier)

Part Number: TLV9002

Hi all

Would you mind if we ask TLV9002?

There is the description "Open-loop output impedance=1200ohm" on the datasheet.
We would like to know output impedance in case of closed loop gain(inverting amplifier).
How much is this? Is that the same as Open-loop output impedance=1200ohm?

Kind regards,

Hirotaka Matsumoto

  • Hello,

    The open loop output impedance will not change when in a closed loop configuration (inverting amplifier). The closed loop output impedance will change when in a closed loop configuration and depends on the gain of the amplifier. I recommend watching Modern Op Amps in Old School Designs for an explanation on the differences between Zo (open loop output impedance) and Zout (closed loop output impedance) and how to calculate Zout.

    Thank you,

    Tim Claycomb