How to get TEMPSENSOR voltage with ADC3 ?

[ZYubi]

void ADC3_config(void)

{

 AdcHandle.Instance     = ADC3;

 if (HAL_ADC_DeInit(&AdcHandle) != HAL_OK)

 {

  /* ADC de-initialization Error */

  //Error_Handler();

 }

AdcHandle.Init.ClockPrescaler      = ADC_CLOCK_SYNC_PCLK_DIV4;   /* Synchronous clock mode, input ADC clock divided by 4*/

 AdcHandle.Init.Resolution        = ADC_RESOLUTION_16B;      /* 16-bit resolution for converted data */

 AdcHandle.Init.ScanConvMode       = DISABLE;            /* Sequencer disabled (ADC conversion on only 1 channel: channel set on rank 1) */

 AdcHandle.Init.EOCSelection       = ADC_EOC_SINGLE_CONV;      /* EOC flag picked-up to indicate conversion end */

 AdcHandle.Init.LowPowerAutoWait     = DISABLE;            /* Auto-delayed conversion feature disabled */

 AdcHandle.Init.ContinuousConvMode    = DISABLE;            /* Continuous mode enabled (automatic conversion restart after each conversion) */

 AdcHandle.Init.NbrOfConversion     = 1;               /* Parameter discarded because sequencer is disabled */

 AdcHandle.Init.DiscontinuousConvMode  = DISABLE;            /* Parameter discarded because sequencer is disabled */

 AdcHandle.Init.NbrOfDiscConversion   = 1;               /* Parameter discarded because sequencer is disabled */

 AdcHandle.Init.ExternalTrigConv     = ADC_SOFTWARE_START;      /* Software start to trig the 1st conversion manually, without external event */

 AdcHandle.Init.ExternalTrigConvEdge   = ADC_EXTERNALTRIGCONVEDGE_NONE; /* Parameter discarded because software trigger chosen */

 AdcHandle.Init.ConversionDataManagement = ADC_CONVERSIONDATA_DR;     /* DR register used as output (DMA mode disabled) */

 AdcHandle.Init.LeftBitShift       = ADC_LEFTBITSHIFT_NONE;     /* Left shift of final results */

 AdcHandle.Init.BoostMode        = ENABLE;            /* Enable Boost mode as ADC clock frequency is bigger than 20 MHz */

 AdcHandle.Init.Overrun         = ADC_OVR_DATA_OVERWRITTEN;   /* DR register is overwritten with the last conversion result in case of overrun */

 AdcHandle.Init.OversamplingMode     = DISABLE;            /* Oversampling disable */

 /* Initialize ADC peripheral according to the passed parameters */

 if (HAL_ADC_Init(&AdcHandle) != HAL_OK)

 {

  // Error_Handler();

 }

 /* ### - 2 - Start calibration ############################################ */

 if (HAL_ADCEx_Calibration_Start(&AdcHandle, ADC_CALIB_OFFSET, ADC_SINGLE_ENDED) != HAL_OK)

 {

  //Error_Handler();

 }

}

void ADC3_configChannel_TEMPSENSOR(void)

{

/* ### - 3 - Channel configuration ######################################## */

 sConfig_ADC.Channel        = ADC_CHANNEL_TEMPSENSOR;   /* Sampled channel number */

 sConfig_ADC.Rank          = ADC_REGULAR_RANK_1;     /* Rank of sampled channel number ADCx_CHANNEL */

 sConfig_ADC.SamplingTime      = ADC_SAMPLETIME_810CYCLES_5; /* Sampling time (number of clock cycles unit) */

 sConfig_ADC.SingleDiff       = ADC_SINGLE_ENDED;      /* Single input channel */

 sConfig_ADC.OffsetNumber      = ADC_OFFSET_NONE;      /* No offset subtraction */ 

 sConfig_ADC.Offset         = 0;             /* Parameter discarded because offset correction is disabled */

 sConfig_ADC.OffsetRightShift    = DISABLE;          /* No Right Offset Shift */

 sConfig_ADC.OffsetSignedSaturation = DISABLE;          /* No Signed Saturation */

 if (HAL_ADC_ConfigChannel(&AdcHandle, &sConfig_ADC) != HAL_OK)

 {

//Error_Handler();

 }

}

 /* Read the converted value */

    uwConvertedValue = HAL_ADC_GetValue(&AdcHandle);

TEMPVoltage = uwConvertedValue;

The TEMPVoltage is only 1400, but TS_CAL1 of the chip is 12275.

What's problem in my code?