diff --git a/content/zettels/differential_pairs.md b/content/zettels/differential_pairs.md
new file mode 100644
index 0000000..0a63f57
--- /dev/null
+++ b/content/zettels/differential_pairs.md
@@ -0,0 +1,17 @@
++++
+title = "Differential Pairs"
+author = ["Thomas Dehaeze"]
+draft = false
++++
+
+Tags
+:
+
+
+## Resources {#resources}
+
+<https://www.youtube.com/watch?v=QG0Apol-oj0>
+
+> One of the main reasons that differential pairs are used whether is between systems, whether is between boards and a system, or whether is across a circuit board, is so that the circuit will ignore offset in ground.
+
+<./biblio/references.bib>