diff --git a/tests/drivers/adc/adc_dma/src/test_adc.c b/tests/drivers/adc/adc_dma/src/test_adc.c
index 22cf30593c20..935f65b83aaf 100644
--- a/tests/drivers/adc/adc_dma/src/test_adc.c
+++ b/tests/drivers/adc/adc_dma/src/test_adc.c
@@ -23,7 +23,7 @@
 #define ADC_ACQUISITION_TIME ADC_ACQ_TIME_DEFAULT
 #define ADC_1ST_CHANNEL_ID 26
 #define COUNTER_NODE_NAME pit0
-#define HW_TRIGGER_INTERVAL (2U)
+#define HW_TRIGGER_INTERVAL (30000U)
 #define SAMPLE_INTERVAL_US HW_TRIGGER_INTERVAL
 
 #elif defined(CONFIG_BOARD_FRDM_K82F)
@@ -35,7 +35,7 @@
 #define ADC_ACQUISITION_TIME ADC_ACQ_TIME_DEFAULT
 #define ADC_1ST_CHANNEL_ID 26
 #define COUNTER_NODE_NAME pit0
-#define HW_TRIGGER_INTERVAL (2U)
+#define HW_TRIGGER_INTERVAL (30000U)
 #define SAMPLE_INTERVAL_US HW_TRIGGER_INTERVAL
 
 #elif defined(CONFIG_BOARD_NUCLEO_H743ZI)