ADC converter on TPS65070 using for OMAP-L138

Boris Ruvinsky

Expert 1410 points

Other Parts Discussed in Thread: OMAP-L138, TPS65070

Dear E2E:

I use TPS65070 to power OMAP-L138.

There is ADC converter inside TPS65070.

There is an application information on page67 of TPS65070 DS.

The Figure 46. shows TS pin configuration on TPS65070.

There is RT1 inside TPS65070 connected between pin TS and 2.25V internal reference.

Can you provide the value for RT1 for both NTC sensor types settings (10K NTC and 100K NTC)?

According to my experiment - the value of internal RT1 Is ~7KOhm. Is it correct?

Thank you for your help,

Boris Ruvinsky

0 Darwin Fernandez over 13 years ago

Hello Boris,

This value for RT1 is specified in the electrical characteristics table on page 12:

10k curve is 7.35 kOhms

100k curve is 62.5kOhms

Regards,

Darwin

0 Boris Ruvinsky over 13 years ago in reply to Darwin Fernandez

Expert 1410 points

Thank you, Darwin for your help.

Boris

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