add specifics and circuit

parts/theory.tex

@@ -111,6 +111,8 @@ This equation is in contrast to all previous behavior models not of a linear nat
     \label{fig:beh1v8}
 \end{figure}
 \subsection{1.8V Output Current}
+The circuit for measuring current is also quite straight forward. It consists of a current sensing IC, which is Hall sensor based, and is in series with the wafer connection. One each for digital and analog.
+
 
 \section{ADC Calibration}
 
@@ -121,6 +123,30 @@ To calibrate these readouts we need to employ some simple actions.
 \subsection{serial ADC readout}
 While the measurements done by the STM32-Chip are using a 12bit ADC, we don't have enough of these inside to be able to completely parallelize the measurements, also only one ADC will be connected to all connected Pins and switch between them.
 
+\begin{figure}[H]
+    \centering
+
+    \resizebox{.55\columnwidth}{.12\paperheight}{%
+        \begin{circuitikz}[scale=2]
+            \draw[color=black, thick]
+
+            (0,0) node[left]{GND}
+            to [short, o-] (1,0)
+            to [] (1,.5)
+
+            (0,2) node[left]{1.8V}
+            to [short, o-] (1,2)
+            to [] (1,1.5)
+
+            (1.2,1) node[draw=black, regular polygon, regular polygon sides=4, minimum size=2.7cm]{amc}
+
+            (1.7,1)
+            to [short, *-] (3, 1) node[right, draw=black] {VDD\_1V8\_};
+        \end{circuitikz}
+    }
+
+\end{figure}
+
 \section{1.8V Output Regulation}
 %\section{Firmware Requirements}