diff --git a/src/ADCSetup.cpp b/src/ADCSetup.cpp
index c1b47c9..593bf51 100644
--- a/src/ADCSetup.cpp
+++ b/src/ADCSetup.cpp
@@ -113,7 +113,7 @@ void FastAttachADC(int ADCpin, bool IDACRefon) {
 
 void AnalogBegin(int resolution, bool midphase, bool Freerun) {
 
-  ADCSetup(midphase, resolution, 1, 3, 5, 512, Freerun, 1);
+  ADCSetup(midphase, resolution, 1, 3, 1, 512, Freerun, 1);
   mp = midphase;
 
 }