diff --git a/arch/arm/src/stm32/stm32_adc.c b/arch/arm/src/stm32/stm32_adc.c
index a7a81db8c6..62e39b205e 100644
--- a/arch/arm/src/stm32/stm32_adc.c
+++ b/arch/arm/src/stm32/stm32_adc.c
@@ -2526,7 +2526,7 @@ static void adc_common_cfg(struct stm32_dev_s *priv)
   clrbits = ADC_CCR_DUAL_MASK | ADC_CCR_DELAY_MASK | ADC_CCR_DMACFG |
             ADC_CCR_MDMA_MASK | ADC_CCR_CKMODE_MASK | ADC_CCR_VREFEN |
             ADC_CCR_TSEN | ADC_CCR_VBATEN;
-  setbits = ADC_CCR_DUAL_IND | ADC_CCR_DELAY(0) | ADC_CCR_MDMA_DISABLED |
+  setbits = ADC_CCR_DUAL_IND | ADC_CCR_DELAY(1) | ADC_CCR_MDMA_DISABLED |
             ADC_CCR_CKMODE_ASYNCH;
 
   adccmn_modifyreg(priv, STM32_ADC_CCR_OFFSET, clrbits, setbits);