Draw an RC Low pass filter circuit in CircuiTikZ

  • This post is about drawing a low-pass filter (LPF), type RC, in LaTeX using TikZ and CircuiTikZ packages. Unlike the high pass filter, LPF passes signals with a frequency lower than a certain cutoff frequency and attenuates signals with frequencies higher than the cutoff frequency.
RC Low Pass Filter in circuitikz

Short description

  • The RC low pass filter circuit diagram has two electrical components: a resistor and a capacitor. Both components have labels (R for the resistor and C for the capacitor). In addition, it has voltage labels which can be created by using the open circuit element. Moreover, the circuit is drawn above a rectangle filled with orange color. Check the code below!

LaTeX code of RC Low pass filter circuit


% Packages



% Change components size

% Orange boxes
] (-1,-0.75) rectangle(5,3);

	minimum width=6cm,
] at (2,-1){\textbf{RC Low Pass Filter} };

% Circuit code
\draw (0,0) to[short,*-*] ++ (4,0);
\draw (0,2) to[R=R,*-] ++ (3,0) coordinate(a);
\draw (a) to[short,-*] ++ (1,0);
\draw (a) to[C,l_=C,*-*] ++(0,-2);

% Voltage labels
\draw (0,2) to[open,v=V$_{in}$] ++(0,-2);
\draw (4,2) to[open,v=V$_{out}$] ++(0,-2);


  • If you would to write a detailed tutorial about it, leave me a comment below or reach me via e-mail at admin@latexdraw.com, I will be happy to hear from you!