diff --git a/library/adc-dac.dcm b/library/adc-dac.dcm
index 47772658..ec0f723d 100644
--- a/library/adc-dac.dcm
+++ b/library/adc-dac.dcm
@@ -479,6 +479,24 @@ K Sigma-Delta ADC Converter 18bit I2C
 F http://ww1.microchip.com/downloads/en/DeviceDoc/22003e.pdf
 $ENDCMP
 #
+$CMP MCP3422
+D 2-Channel, 18-Bit, ΔΣ AD Converter, I²C Interface, Reference
+K 18-Bit ADC I2C IIC I²C Delta-Sigma-ADC ΔΣ-ADC Reference
+F http://ww1.microchip.com/downloads/en/DeviceDoc/22088c.pdf
+$ENDCMP
+#
+$CMP MCP3423
+D 2-Channel, 18-Bit, ΔΣ AD Converter, I²C Interface, Reference, MSOP
+K 18-Bit ADC I2C IIC I²C Delta-Sigma-ADC ΔΣ-ADC Reference
+F http://ww1.microchip.com/downloads/en/DeviceDoc/22088c.pdf
+$ENDCMP
+#
+$CMP MCP3424
+D 4-Channel, 18-Bit, ΔΣ AD Converter, I²C Interface, Reference
+K 18-Bit ADC I2C IIC I²C Delta-Sigma-ADC ΔΣ-ADC Reference
+F http://ww1.microchip.com/downloads/en/DeviceDoc/22088c.pdf
+$ENDCMP
+#
 $CMP MCP3425A0T-E/CH
 D MCP3425A0T, Single Delta-Sigma 16bit Analog to Digital Converter, I2C Interface, SOT-23-6
 K Sigma-Delta ADC Converter 16bit I2C
diff --git a/library/adc-dac.lib b/library/adc-dac.lib
index 1992b105..a846e011 100644
--- a/library/adc-dac.lib
+++ b/library/adc-dac.lib
@@ -1686,6 +1686,137 @@ X VDD 16 -100 600 200 D 50 50 1 1 W
 ENDDRAW
 ENDDEF
 #
+# MCP3422
+#
+DEF MCP3422 U 0 40 Y Y 1 F N
+F0 "U" -450 350 50 H V C CNN
+F1 "MCP3422" 400 350 50 H V C CNN
+F2 "" 900 -300 50 H I C CNN
+F3 "" 900 -300 50 H I C CNN
+$FPLIST
+ MSOP-8
+ SOIC-8
+ SO-8
+$ENDFPLIST
+DRAW
+T 0 35 -50 50 0 0 0 ADC Normal 0 C C
+T 900 265 -165 50 0 0 0 CNTRL Normal 0 L B
+T 900 -190 -20 50 0 0 0 MUX Normal 0 C C
+T 0 235 -300 50 0 0 0 Vref Normal 0 C C
+P 5 0 0 0 -240 250 -140 190 -140 -220 -240 -270 -240 250 N
+P 5 0 0 0 180 70 -70 70 -70 250 -190 250 -190 220 N
+P 6 0 0 0 140 30 140 -130 -40 -130 -90 -50 -40 30 140 30 N
+S 50 -200 150 -330 0 1 0 N
+S 180 -250 305 150 0 1 0 N
+S 500 300 -500 -400 0 1 0 f
+P 2 0 1 0 -140 -50 -90 -50 N
+P 2 0 1 0 80 -250 70 -260 N
+P 2 0 1 0 100 -230 100 -300 N
+P 2 0 1 0 100 -140 110 -150 N
+P 2 0 1 0 140 -50 180 -50 N
+P 3 0 1 0 80 -250 120 -250 130 -240 N
+P 3 0 1 0 100 -200 100 -140 90 -150 N
+P 4 0 1 0 100 -250 80 -280 120 -280 100 -250 N
+X CH1+ 1 -600 200 100 R 50 50 1 1 I
+X CH1- 2 -600 100 100 R 50 50 1 1 I
+X GND 3 0 -500 100 U 50 50 1 1 W
+X SDA 4 600 0 100 L 50 50 1 1 B
+X SCL 5 600 100 100 L 50 50 1 1 I C
+X Vdd 6 0 400 100 D 50 50 1 1 W
+X CH2+ 7 -600 -100 100 R 50 50 1 1 I
+X CH2- 8 -600 -200 100 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# MCP3423
+#
+DEF MCP3423 U 0 40 Y Y 1 F N
+F0 "U" -450 350 50 H V C CNN
+F1 "MCP3423" 400 350 50 H V C CNN
+F2 "" 900 -300 50 H I C CNN
+F3 "" 900 -300 50 H I C CNN
+$FPLIST
+ MSOP-10
+$ENDFPLIST
+DRAW
+T 0 35 -50 50 0 0 0 ADC Normal 0 C C
+T 900 265 -165 50 0 0 0 CNTRL Normal 0 L B
+T 900 -190 -20 50 0 0 0 MUX Normal 0 C C
+T 0 235 -300 50 0 0 0 Vref Normal 0 C C
+P 5 0 0 0 -240 250 -140 190 -140 -220 -240 -270 -240 250 N
+P 5 0 0 0 180 70 -70 70 -70 250 -190 250 -190 220 N
+P 6 0 0 0 140 30 140 -130 -40 -130 -90 -50 -40 30 140 30 N
+S 50 -200 150 -330 0 1 0 N
+S 180 -250 305 150 0 1 0 N
+S 500 300 -500 -400 0 1 0 f
+P 2 0 1 0 -140 -50 -90 -50 N
+P 2 0 1 0 80 -250 70 -260 N
+P 2 0 1 0 100 -230 100 -300 N
+P 2 0 1 0 100 -140 110 -150 N
+P 2 0 1 0 140 -50 180 -50 N
+P 3 0 1 0 80 -250 120 -250 130 -240 N
+P 3 0 1 0 100 -200 100 -140 90 -150 N
+P 4 0 1 0 100 -250 80 -280 120 -280 100 -250 N
+X CH1+ 1 -600 200 100 R 50 50 1 1 I
+X CH1- 2 -600 100 100 R 50 50 1 1 I
+X GND 3 0 -500 100 U 50 50 1 1 W
+X CH2+ 4 -600 -100 100 R 50 50 1 1 I
+X CH2- 5 -600 -200 100 R 50 50 1 1 I
+X Vdd 6 0 400 100 D 50 50 1 1 W
+X SDA 7 600 0 100 L 50 50 1 1 B
+X SCL 8 600 100 100 L 50 50 1 1 I C
+X A0 9 600 -100 100 L 50 50 1 1 I
+X A1 10 600 -200 100 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# MCP3424
+#
+DEF MCP3424 U 0 40 Y Y 1 F N
+F0 "U" -450 350 50 H V C CNN
+F1 "MCP3424" 400 350 50 H V C CNN
+F2 "" 900 -300 50 H I C CNN
+F3 "" 900 -300 50 H I C CNN
+$FPLIST
+ SO-14
+ TSSOP-14
+$ENDFPLIST
+DRAW
+T 0 35 -250 50 0 0 0 ADC Normal 0 C C
+T 900 265 -205 50 0 0 0 CNTRL Normal 0 L B
+T 900 -190 -300 50 0 0 0 MUX Normal 0 C C
+T 0 195 -550 50 0 0 0 Vref Normal 0 C C
+P 5 0 0 0 -240 250 -140 190 -140 -780 -240 -840 -240 250 N
+P 5 0 0 0 180 70 -70 70 -70 250 -190 250 -190 220 N
+P 6 0 0 0 140 -170 140 -330 -40 -330 -90 -250 -40 -170 140 -170 N
+S 10 -480 110 -610 0 1 0 N
+S 180 -320 305 150 0 1 0 N
+S 500 300 -500 -900 0 1 0 f
+P 2 0 1 0 -140 -250 -90 -250 N
+P 2 0 1 0 40 -530 30 -540 N
+P 2 0 1 0 60 -510 60 -580 N
+P 2 0 1 0 60 -340 70 -350 N
+P 2 0 1 0 140 -250 180 -250 N
+P 3 0 1 0 40 -530 80 -530 90 -520 N
+P 3 0 1 0 60 -480 60 -340 50 -350 N
+P 4 0 1 0 60 -530 40 -560 80 -560 60 -530 N
+X CH1+ 1 -600 200 100 R 50 50 1 1 I
+X CH1- 2 -600 100 100 R 50 50 1 1 I
+X CH2+ 3 -600 -100 100 R 50 50 1 1 I
+X CH2- 4 -600 -200 100 R 50 50 1 1 I
+X GND 5 0 -1000 100 U 50 50 1 1 W
+X Vdd 6 0 400 100 D 50 50 1 1 W
+X SDA 7 600 0 100 L 50 50 1 1 B
+X SCL 8 600 100 100 L 50 50 1 1 I C
+X A0 9 600 -100 100 L 50 50 1 1 I
+X A1 10 600 -200 100 L 50 50 1 1 I
+X CH3+ 11 -600 -400 100 R 50 50 1 1 I
+X CH3- 12 -600 -500 100 R 50 50 1 1 I
+X CH4+ 13 -600 -700 100 R 50 50 1 1 I
+X CH4- 14 -600 -800 100 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
 # MCP3425A0T-E/CH
 #
 DEF MCP3425A0T-E/CH U 0 40 Y Y 1 F N