• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 46 subscribers
  • Views 330 views
  • Users 0 members are here
Support feedback
Options
Options
Related

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.

ADC32RF44: ADC32RF44 powering only one channel

Jan Volkering
Expert 8190 points
Part Number: ADC32RF44


i,

I am looking for a single channel >2GSPS ADC with as low as possible power dissipation but best SNR/SFR range as possible.

The ADC32RF44 seems like a candidate, unfortunately no single channel version available.

I see that channel B can be powered down by programming register 039h.

Does this powers down the complete b-side converter and its associated logic (interleaving correction, DDC etc.)?

What is the reduction in power dissipation when channel; B is powered down?

  • 0
    TI__Expert 3865 points

    Hi Jan,

    here some feedback. At the moment the ADC32RF4x is probably the best option. In single channel mode the entire channel is powered down (ADC + Digital + JESD etc). However there are some shared circuitry so power is not exactly 50% lower.

    At fs= 2Gsps

    Dual channel Mode: Pd ~ 5.5W

    Single channel Mode: Pd ~ 3.2W

    Tommy