diff --git a/artiq/dashboard/waveform.py b/artiq/dashboard/waveform.py
index 53e250f34..366be19b7 100644
--- a/artiq/dashboard/waveform.py
+++ b/artiq/dashboard/waveform.py
@@ -186,6 +186,23 @@ class _BaseWaveform(pg.PlotWidget):
             super().wheelEvent(e)
 
 
+class AnalogWaveform(_BaseWaveform):
+    def __init__(self, name, width, parent=None):
+        _BaseWaveform.__init__(self, name, width, parent)
+
+    def onDataChange(self, data):
+        try:
+            x_data, y_data = zip(*data)
+            self.plot_data_item.setData(x=x_data, y=y_data)
+            max_y = max(y_data)
+            min_y = min(y_data)
+            self.plot_item.setRange(yRange=(min_y, max_y), padding=0.1)
+        except:
+            logger.error(
+                'Error when displaying waveform: {}'.format(self.name), exc_info=True)
+            self.plot_data_item.setData(x=[], y=[])
+
+
 class _WaveformView(QtWidgets.QWidget):
     def __init__(self, parent):
         QtWidgets.QWidget.__init__(self, parent=parent)