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TLV9001: Shutdown function of TLV9001 and leakage current

Part Number: TLV9001


As mentioned in TLV9001S datasheet, the SHDN pin is internally connected to VDD with a pull up resistor. I want to know, if I want to disable the amp during Power ON. Can I use a pull down resistor externally before Micro generate a logic low voltage level. If yes, what is the resistance for the pull down resistor.

Another question is in the SHDN mode, the output of the Op Amp is in high impedance state, what is the leakage current.

The 3rd question is if the TLV9001S is not powered, what is the state of the output? Is it still high impedance state, what is the leakage current. Also for the input pin, for the non-invert input or invert input. when the Op Amp is not powered. I believe the input is also the high impedance state, is it correct? what is the leakage current. I wish the leakage current to be very small, just a few na or even at pa level.