CCS/CC2640R2F: Lm335 temperature sensor with CC2640R2

Part Number:CC2640R2F

Tool/software: Code Composer Studio

Hello

I'm doing a little project in which i use a CC2640R2 with a LM335 to measure the ambient temperature. 

tempy = (((adcValue0 * 3.3 * 100 ) /4096));
Temp_final =  tempy >> 10;

But my output is not right. I connect the lm335 to 5 V and my measure is    ADC Raw: 2775 and Vout= 2.98V.

Did i miss anything ? 

Best regards