AnsweredAssumed Answered

SDADC Gain 0.5 max Vin?

Question asked by Valentin on Dec 8, 2015
Latest reply on Dec 9, 2015 by Valentin
Hi,

According to AN4207 page 10, in Single ended zero ref mode the max input voltage to the ADC is Vref/gain.

gain_vin.JPG

So if I set Vref = 3.3V = VCC, can I measure up to 6.6V with gain = 0.5?
Or would this collide with the max voltage requirements of the pins (= 3.6V)?

Reason I'm asking is that I need to measure a 0 - 5V signal (high impedance, from a pot) and want to use the SDADC for that if possible to achieve 16 bit accuracy.

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