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TLV2402QDGK Quiescent Current

Christophe Cranz
Prodigy 40 points
Other Parts Discussed in Thread: TLV2402

Hi,

I have tested the TLV2402QDGK (laser print TI19 QWX) and my measurments for the per channel Iq is around 10/11 uA. In the datasheet it says that it should be at 1uA. I measured this by just providing a 3.3V power supply to VCC and connected the GND pin to ground. Rest of the pins were left open.

Is there a mistake in my measurement set up, or why is my Iq higher than the specific value in the datasheet? I have tested this with several devices / channels.

Best regards,

Chris

  • 0
    TI__Guru 60570 points

    Chris,

    All datasheet parameters require op amp to operate in its linear region and thus input/output voltage must stay within the datasheet specified range.  Leaving the input/output pins floating results in the input/output collapsing against one of its rail and thus violates the PDS conditions.  To measure IQ, please place TLV2402 in follower configuration and drive the non-inverting input to mid-supply - Vs/2 (1.65V).