ADC reference voltage on external pin?

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davidm
Posts: 6
Joined: Thu Feb 09, 2017 5:40 am

ADC reference voltage on external pin?

Postby davidm » Thu Feb 09, 2017 5:42 am

Is it possible to route the ADC's reference voltage (Vref) to one of the pins? If so, how? Also, what voltage is Vref set to?

Thanks!
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ESP_puff
Posts: 13
Joined: Tue Jan 10, 2017 8:34 am

Re: ADC reference voltage on external pin?

Postby ESP_puff » Tue Feb 21, 2017 9:31 am

Hi davidm,
The reference voltage for ADC is fixed to 1.1V. No other pins are allowed to use as reference voltage.
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davidm
Posts: 6
Joined: Thu Feb 09, 2017 5:40 am

Re: ADC reference voltage on external pin?

Postby davidm » Tue Feb 21, 2017 10:19 pm

Thanks for the clarification!
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