diff --git a/samples/drivers/adc/adc_dt/boards/apollo4p_evb.overlay b/samples/drivers/adc/adc_dt/boards/apollo4p_evb.overlay
new file mode 100644
index 00000000000..6e71ec276b8
--- /dev/null
+++ b/samples/drivers/adc/adc_dt/boards/apollo4p_evb.overlay
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2024 Ambiq Micro Inc.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+/ {
+	zephyr,user {
+		io-channels = <&adc0 4>, <&adc0 7>;
+	};
+};
+
+&adc0 {
+	status = "okay";
+	interrupt-parent = <&nvic>;
+	interrupts = <19 0>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	channel@4 {
+		reg = <4>;
+		zephyr,gain = "ADC_GAIN_1";
+		zephyr,reference = "ADC_REF_INTERNAL";
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		zephyr,resolution = <12>;
+	};
+
+	channel@7 {
+		reg = <7>;
+		zephyr,gain = "ADC_GAIN_1";
+		zephyr,reference = "ADC_REF_INTERNAL";
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		zephyr,resolution = <12>;
+	};
+};
diff --git a/tests/drivers/adc/adc_api/boards/apollo4p_evb.overlay b/tests/drivers/adc/adc_api/boards/apollo4p_evb.overlay
new file mode 100644
index 00000000000..5676f0c4726
--- /dev/null
+++ b/tests/drivers/adc/adc_api/boards/apollo4p_evb.overlay
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2024 Ambiq Micro Inc.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+/ {
+	zephyr,user {
+		io-channels = <&adc0 4>, <&adc0 7>;
+	};
+};
+
+&adc0 {
+	status = "okay";
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	channel@4 {
+		reg = <4>;
+		zephyr,gain = "ADC_GAIN_1";
+		zephyr,reference = "ADC_REF_INTERNAL";
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		zephyr,resolution = <12>;
+	};
+
+	channel@7 {
+		reg = <7>;
+		zephyr,gain = "ADC_GAIN_1";
+		zephyr,reference = "ADC_REF_INTERNAL";
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		zephyr,resolution = <12>;
+	};
+};