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BUF20800: Output disable

NAOKI AOYAMA
Guru 11215 points

Part Number: BUF20800
Other Parts Discussed in Thread: BUF22821

Hello,

Our customer use the BUF20800.

The customer want to output disable with keeping I2C configuration.

Is it possible to output disable by the REFH and REFL pin to GND?

Best Regards,

Naoki Aoyama

  • 0
    TI__Guru 72285 points
    Hello Naoki Aoyama,

    If you set REFH and REFL to GND, you are operating REFH out of the recommended operating condition, REFH should be at least 4V. In addition, the output will not be turned off, it most probable will just drive to GND. As I understand you, the customer wants to turn off the outputs, not drive to the same level on all of them.

    I would recommend to use BUF22821 which is as well a 22 channel gamma buffer and has NVM to store the programmed data.

    Best regards,
    Brigitte
  • 0 in reply to Brigitte
    Guru 11215 points
    Hello Brigitte,

    Thank you for your reply.
    I will suggest the customer to use the BUF22821.

    Thanks,
    Naoki Aoyama