diff --git a/platforms/nuttx/src/px4/nxp/imxrt/adc/adc.cpp b/platforms/nuttx/src/px4/nxp/imxrt/adc/adc.cpp
index c23dc5b0de..8f95130321 100644
--- a/platforms/nuttx/src/px4/nxp/imxrt/adc/adc.cpp
+++ b/platforms/nuttx/src/px4/nxp/imxrt/adc/adc.cpp
@@ -98,7 +98,7 @@ int px4_arch_adc_init(uint32_t base_address)
 		imxrt_clockall_adc1();
 
 		rCFG(base_address) = ADC_CFG_ADICLK_IPGDIV2 | ADC_CFG_MODE_12BIT | \
-				     ADC_CFG_ADIV_DIV8 | ADC_CFG_ADLSMP | ADC_CFG_ADSTS_6_20 | \
+				     ADC_CFG_ADIV_DIV8 | ADC_CFG_ADLSMP | ADC_CFG_ADSTS_7_21 | \
 				     ADC_CFG_AVGS_4SMPL | ADC_CFG_OVWREN;
 		px4_leave_critical_section(flags);