OPT3004: OPT3004

Ramesh P1

Part Number: OPT3004

Hello,

I need some sensor suggestion for calibrating with White Led,currently i am using OPT3004 and the difference between sensor value and reference meter is more than 13 percentage.

is there any specific sensor for White Led? ,if so please suggest me with its part number.

or is there anyway i can get the accuracy using OPT3004?

Regards,

Ramesh P

over 6 years ago

0 Alex Bhandari-Young over 6 years ago

TI__Mastermind 25895 points

Hi Ramesh,

The OPT3004 has a spec for max +/- 10% error at 2k lux so 13% is surprising. What light level are you measuring at and what type of light source? How is the test setup controlled?

You can calibrate with a white LED. Details for this are here. http://www.ti.com/lit/an/sbea002a/sbea002a.pdf in section 2.1 Attenuation Compensation

Please see this faq for info on worst case accuracy to expect https://e2e.ti.com/support/sensors/f/1023/p/808110/2990340

Best,

Alex

Sensors

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OPT3004: OPT3004