• State TI Thinks Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 2 answers
  • Subscribers 30 subscribers
  • Views 495 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.

OPT3004: Compare with CG5162TC

Shu-Cheng LIN
Guru 11785 points
Part Number: OPT3004

Hi Sirs,

Sorry to bother you.

We have use competitor CG5162TC , we would like design OPT3004 to replace competitor parts.

But we need some verified specification report on EVM.
The items as below.

Could you help check TI have this test report? or how could we test on EVM to get this information?

Report items as below:

1. Temperature compensation. LUX value and temperature change.
2. IR LED effect. How much the LUX value affects the IR LED.
3. Read value stability. Under the same light source, how much difference each LUX has.

  • 0
    TI__Mastermind 25895 points

    Hi ,

    1) This is listed in the datasheet (spec table and plot: Measurement drift across temperature and response vs temp)

    2) IR response is also listed in the datasheet (spectral plot as well as in spec table)

    3) This sounds like a question about the noise of the device. The device is actually designed so that quantization is more than other noise factors. This means the LSB listed will generally be stable assuming light source and other factors are held constant. If you would like to test this with the EVM you will likely need a way to actively monitor the light from the light source at the same time as shining on the OPT3004 to account for any drift in the light source intensity. Another possibility is if you can get a very stable light source, but many light sources have a drift especially before they are thermally stable so best is if active monitoring is possible.

    Please let me know if this will help to win the socket or if anything else is needed.

    Best,

    Alex

  • 0 in reply to Alex Bhandari-Young
    Guru 11785 points

    Hi Alex,

    Thanks for your reply.

    Sorry i couldn't find Q1 and Q2 answer's table on datasheet, could you help tell us where is it?

    About Q3, Does TI have reference table or compare form as CG5162?

  • 0 in reply to Shu-Cheng LIN
    TI__Mastermind 25895 points

    Hi,

    1) This is listed in the datasheet (spec table and plot: Measurement drift across temperature and response vs temp)

    Measurement drift across temperature - in spec table (try searching this text if you still can't find it)

    Response vs temp: figures 9 and 10

    2) IR response is also listed in the datasheet (spectral plot as well as in spec table)

    Figure 2 and also on the first page of the datasheet (both plots are the same) 

    3) If they want a noise comparison, we don't have this because we have not taken data on the CG part for this.

    Best,

    Alex