diff --git a/ADC/LTC/ltc2157.lib b/ADC/LTC/ltc2157.lib
index 9a52645bec6131f4427d0cc75390290a2c1796f0..43aa66adccfd10a3d10461c7cc111bf6727ae46d 100644
--- a/ADC/LTC/ltc2157.lib
+++ b/ADC/LTC/ltc2157.lib
@@ -34,7 +34,6 @@ X Vdd 64 -250 -150 100 R 25 25 1 1 W
 X GND 65 250 -300 100 L 25 25 1 1 W
 X Vref 8 -250 -400 100 R 25 25 1 1 w
 X GND 9 250 0 100 L 25 25 1 1 W
-X Vcm 10 -300 -100 100 R 25 25 2 1 O
 X Ainb- 12 -300 -200 100 R 25 25 2 1 I
 X Ainb+ 13 -300 -250 100 R 25 25 2 1 I
 X ENC+ 19 300 -200 100 L 25 25 2 1 I
@@ -42,7 +41,6 @@ X ENC- 20 300 -250 100 L 25 25 2 1 I
 X Aina+ 4 -300 50 100 R 25 25 2 1 I
 X Aina- 5 -300 0 100 R 25 25 2 1 I
 X SENSE 7 -300 250 100 R 25 25 2 1 I
-X Vref 8 300 250 100 L 25 25 2 1 O
 X SDO 59 300 250 100 L 25 25 3 1 O
 X SDI 60 -300 150 100 R 25 25 3 1 I
 X SCK 61 -300 250 100 R 25 25 3 1 I