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74lvc06A input impedance

Bob Kando
Genius 9415 points
Other Parts Discussed in Thread: SN74LVC06A

I am looking for a spec regarding the input impedance/ DC resistance of the SN74LVC06A (data sheet attached).  We have encountered some parts with a low DCR between some of the inputs and GND.  Specifically between pins 1 and 5 of the SN74LVC06A and the ground pin 7.

  Is there a minimum DCR that this part should have between the input of the op-amp and GND?

  • 0
    TI__Mastermind 46480 points

    Hello Bob

    Input impedance for Cmos parts is very high. Greater than 1Mohm. Measureing from an input  pin to gnd you might be seeing the clamp diode. However if you reverse the leads you should not see this.  You should not see anything between inputs.