This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

REF102: Output voltage noise density v.s. frequency

Part Number: REF102
Other Parts Discussed in Thread: REF5010

Hello,

I am currently looking for a low noise, low drift (<5ppm/C) voltage reference which output voltage is around 10V. And I care not only the low frequency noise but also the broad band noise (up to 10KHz). I only find the low frequency noise spec of the REF102 but no voltage noise density plot is provided. Since it is related to the size of the noise reduction cap, could you provide the plot with no noise reduction cap and with 1uF noise reduction cap? Thanks.

  • Hi,

    The REF102 is a much older device and we do not have that data. I would highly recommend to look into the REF5010 which is the newer revision of that device.
    Does the graph on this E2E thread satisfy your request for cap on trim for the REF5010? This is all the data we have right now.
    e2e.ti.com/.../376073

    -Marcoo
  • Hi Marcoo,

    Thanks for your response. From my prospective of noise, the lower the better.  Since the Iq for REF102 is higher than REF5010.(1.4mA versus 1mA) I guess the broadband noise floor (without the noise reduction cap probably) is lower for REF102. If you don't have any data, I might have to try before making decision.