component
LM2903 Dual Comparator
Public Made by Adomby adom
Dual differential comparator with open-collector outputs, single or split supply.
← Commit history
LM2903.adom-lbr.json+108−17@@ -10,67 +10,75 @@ "pins": [ { "number": "1",- "name": "",+ "name": "1OUT", "x": 300, "y": 0, "length": 100,- "rotation": 180+ "rotation": 180,+ "electrical_type": "open_collector" }, { "number": "2",- "name": "-",+ "name": "1IN-", "x": -300, "y": -100, "length": 100,- "rotation": 0+ "rotation": 0,+ "electrical_type": "input" }, { "number": "3",- "name": "+",+ "name": "1IN+", "x": -300, "y": 100, "length": 100,- "rotation": 0+ "rotation": 0,+ "electrical_type": "input" }, { "number": "5",- "name": "+",+ "name": "2IN+", "x": -300, "y": 100, "length": 100,- "rotation": 0+ "rotation": 0,+ "electrical_type": "input" }, { "number": "6",- "name": "-",+ "name": "2IN-", "x": -300, "y": -100, "length": 100,- "rotation": 0+ "rotation": 0,+ "electrical_type": "input" }, { "number": "7",- "name": "",+ "name": "2OUT", "x": 300, "y": 0, "length": 100,- "rotation": 180+ "rotation": 180,+ "electrical_type": "open_collector" }, { "number": "4",- "name": "V-",+ "name": "GND", "x": -100, "y": -300, "length": 150,- "rotation": 90+ "rotation": 90,+ "electrical_type": "power_in" }, { "number": "8",- "name": "V+",+ "name": "VCC", "x": -100, "y": 300, "length": 150,- "rotation": 270+ "rotation": 270,+ "electrical_type": "power_in" } ], "body": null,@@ -190,7 +198,38 @@ ], "designator_prefix": "U", "footprint": "SOIC-8_3.9x4.9mm_P1.27mm",- "parameters": [],+ "parameters": [+ {+ "name": "Value",+ "value": "LM2903",+ "visible": true+ },+ {+ "name": "Datasheet",+ "value": "https://www.ti.com/lit/ds/symlink/lm2903.pdf",+ "visible": true+ },+ {+ "name": "Description",+ "value": "Low-Power, Low-Offset Voltage, Dual Comparators, DIP-8/SOIC-8/SOP-8/TSSOP-8/VSSOP-8",+ "visible": true+ },+ {+ "name": "ki_locked",+ "value": "",+ "visible": true+ },+ {+ "name": "ki_keywords",+ "value": "cmp open collector",+ "visible": true+ },+ {+ "name": "ki_fp_filters",+ "value": "SOIC*3.9x4.9mm*P1.27mm* DIP*W7.62mm* SOP*5.28x5.23mm*P1.27mm* VSSOP*3x3mm*P0.65mm* TSSOP*4.4x3mm*P0.65mm*",+ "visible": true+ }+ ], "pin_numbers_hidden": false, "pin_names_hidden": false },@@ -477,6 +516,58 @@ "y2": 2.46, "width": 0.05 }+ ],+ "polys": [+ {+ "layer": {+ "role": "silk"+ },+ "points": [+ [+ -2.6,+ -2.47+ ],+ [+ -2.84,+ -2.8+ ],+ [+ -2.36,+ -2.8+ ]+ ],+ "width": 0.12,+ "filled": true+ },+ {+ "layer": {+ "role": "fab"+ },+ "points": [+ [+ -0.975,+ -2.45+ ],+ [+ 1.95,+ -2.45+ ],+ [+ 1.95,+ 2.45+ ],+ [+ -1.95,+ 2.45+ ],+ [+ -1.95,+ -1.475+ ]+ ],+ "width": 0.1,+ "filled": false+ } ] }, "connect": [
LM2903.lbr+70−48@@ -52,16 +52,28 @@ <library> <description>Low-Power, Low-Offset Voltage, Dual Comparators, DIP-8/SOIC-8/SOP-8/TSSOP-8/VSSOP-8</description> <packages>-<package name="LM2903">- <description>LM2903</description>- <smd name="1" x="-2.4750" y="1.9050" dx="1.9500" dy="0.6000" layer="1"/>- <smd name="2" x="-2.4750" y="0.6350" dx="1.9500" dy="0.6000" layer="1"/>- <smd name="3" x="-2.4750" y="-0.6350" dx="1.9500" dy="0.6000" layer="1"/>- <smd name="4" x="-2.4750" y="-1.9050" dx="1.9500" dy="0.6000" layer="1"/>- <smd name="5" x="2.4750" y="-1.9050" dx="1.9500" dy="0.6000" layer="1"/>- <smd name="6" x="2.4750" y="-0.6350" dx="1.9500" dy="0.6000" layer="1"/>- <smd name="7" x="2.4750" y="0.6350" dx="1.9500" dy="0.6000" layer="1"/>- <smd name="8" x="2.4750" y="1.9050" dx="1.9500" dy="0.6000" layer="1"/>+<package name="SOIC-8_3.9x4.9mm_P1.27mm">+ <description>SOIC-8, 3.9 x 4.9 mm, 1.27 mm pitch</description>+ <smd name="1" x="-2.4750" y="1.9050" dx="1.9500" dy="0.6000" layer="1" roundness="50"/>+ <smd name="2" x="-2.4750" y="0.6350" dx="1.9500" dy="0.6000" layer="1" roundness="50"/>+ <smd name="3" x="-2.4750" y="-0.6350" dx="1.9500" dy="0.6000" layer="1" roundness="50"/>+ <smd name="4" x="-2.4750" y="-1.9050" dx="1.9500" dy="0.6000" layer="1" roundness="50"/>+ <smd name="5" x="2.4750" y="-1.9050" dx="1.9500" dy="0.6000" layer="1" roundness="50"/>+ <smd name="6" x="2.4750" y="-0.6350" dx="1.9500" dy="0.6000" layer="1" roundness="50"/>+ <smd name="7" x="2.4750" y="0.6350" dx="1.9500" dy="0.6000" layer="1" roundness="50"/>+ <smd name="8" x="2.4750" y="1.9050" dx="1.9500" dy="0.6000" layer="1" roundness="50"/>+ <polygon width="0.1200" layer="21">+ <vertex x="-2.6000" y="2.4700"/>+ <vertex x="-2.8400" y="2.8000"/>+ <vertex x="-2.3600" y="2.8000"/>+ </polygon>+ <polygon width="0.1000" layer="51">+ <vertex x="-0.9750" y="2.4500"/>+ <vertex x="1.9500" y="2.4500"/>+ <vertex x="1.9500" y="-2.4500"/>+ <vertex x="-1.9500" y="-2.4500"/>+ <vertex x="-1.9500" y="1.4750"/>+ </polygon> <wire x1="-2.0600" y1="2.5600" x2="2.0600" y2="2.5600" width="0.1200" layer="21"/> <wire x1="-2.0600" y1="2.4650" x2="-2.0600" y2="2.5600" width="0.1200" layer="21"/> <wire x1="-2.0600" y1="-2.5600" x2="-2.0600" y2="-2.4650" width="0.1200" layer="21"/>@@ -74,34 +86,37 @@ </packages> <symbols> <symbol name="LM2903">- <wire x1="-5.0800" y1="5.0800" x2="5.0800" y2="0.0000" width="0.1524" layer="94"/>- <wire x1="5.0800" y1="0.0000" x2="-5.0800" y2="-5.0800" width="0.1524" layer="94"/>- <wire x1="-5.0800" y1="-5.0800" x2="-5.0800" y2="5.0800" width="0.1524" layer="94"/>- <wire x1="3.3020" y1="-0.5080" x2="2.7940" y2="-0.5080" width="0.1524" layer="94"/>- <wire x1="2.7940" y1="-0.5080" x2="3.3020" y2="0.0000" width="0.1524" layer="94"/>- <wire x1="3.3020" y1="0.0000" x2="2.7940" y2="0.5080" width="0.1524" layer="94"/>- <wire x1="2.7940" y1="0.5080" x2="2.2860" y2="0.0000" width="0.1524" layer="94"/>- <wire x1="2.2860" y1="0.0000" x2="2.7940" y2="-0.5080" width="0.1524" layer="94"/>- <wire x1="2.7940" y1="-0.5080" x2="2.2860" y2="-0.5080" width="0.1524" layer="94"/>- <wire x1="-5.0800" y1="5.0800" x2="5.0800" y2="0.0000" width="0.1524" layer="94"/>- <wire x1="5.0800" y1="0.0000" x2="-5.0800" y2="-5.0800" width="0.1524" layer="94"/>- <wire x1="-5.0800" y1="-5.0800" x2="-5.0800" y2="5.0800" width="0.1524" layer="94"/>- <wire x1="3.3020" y1="-0.5080" x2="2.7940" y2="-0.5080" width="0.1524" layer="94"/>- <wire x1="2.7940" y1="-0.5080" x2="3.3020" y2="0.0000" width="0.1524" layer="94"/>- <wire x1="3.3020" y1="0.0000" x2="2.7940" y2="0.5080" width="0.1524" layer="94"/>- <wire x1="2.7940" y1="0.5080" x2="2.2860" y2="0.0000" width="0.1524" layer="94"/>- <wire x1="2.2860" y1="0.0000" x2="2.7940" y2="-0.5080" width="0.1524" layer="94"/>- <wire x1="2.7940" y1="-0.5080" x2="2.2860" y2="-0.5080" width="0.1524" layer="94"/>- <text x="0" y="10" size="1.27" layer="95" align="bottom-center">>NAME</text>- <text x="0" y="-10" size="1.27" layer="96" align="top-center">>VALUE</text>- <pin name="1" x="7.62" y="0" length="short" direction="oc" rot="R180"/>- <pin name="-" x="-7.62" y="-2.54" length="short" direction="in"/>- <pin name="+" x="-7.62" y="2.54" length="short" direction="in"/>- <pin name="+@2" x="-7.62" y="2.54" length="short" direction="in"/>- <pin name="-@2" x="-7.62" y="-2.54" length="short" direction="in"/>- <pin name="7" x="7.62" y="0" length="short" direction="oc" rot="R180"/>- <pin name="V-" x="-2.54" y="-7.62" length="middle" direction="pwr" rot="R90"/>- <pin name="V+" x="-2.54" y="7.62" length="middle" direction="pwr" rot="R270"/>+ <description>Low-Power, Low-Offset Voltage, Dual Comparators, DIP-8/SOIC-8/SOP-8/TSSOP-8/VSSOP-8</description>+ <wire x1="-5.0800" y1="5.0800" x2="5.0800" y2="0.0000" width="0.2540" layer="94"/>+ <wire x1="5.0800" y1="0.0000" x2="-5.0800" y2="-5.0800" width="0.2540" layer="94"/>+ <wire x1="-5.0800" y1="-5.0800" x2="-5.0800" y2="5.0800" width="0.2540" layer="94"/>+ <wire x1="3.3020" y1="-0.5080" x2="2.7940" y2="-0.5080" width="0.0254" layer="94"/>+ <wire x1="2.7940" y1="-0.5080" x2="3.3020" y2="0.0000" width="0.0254" layer="94"/>+ <wire x1="3.3020" y1="0.0000" x2="2.7940" y2="0.5080" width="0.0254" layer="94"/>+ <wire x1="2.7940" y1="0.5080" x2="2.2860" y2="0.0000" width="0.0254" layer="94"/>+ <wire x1="2.2860" y1="0.0000" x2="2.7940" y2="-0.5080" width="0.0254" layer="94"/>+ <wire x1="2.7940" y1="-0.5080" x2="2.2860" y2="-0.5080" width="0.0254" layer="94"/>+ <wire x1="-5.0800" y1="5.0800" x2="5.0800" y2="0.0000" width="0.2540" layer="94"/>+ <wire x1="5.0800" y1="0.0000" x2="-5.0800" y2="-5.0800" width="0.2540" layer="94"/>+ <wire x1="-5.0800" y1="-5.0800" x2="-5.0800" y2="5.0800" width="0.2540" layer="94"/>+ <wire x1="3.3020" y1="-0.5080" x2="2.7940" y2="-0.5080" width="0.0254" layer="94"/>+ <wire x1="2.7940" y1="-0.5080" x2="3.3020" y2="0.0000" width="0.0254" layer="94"/>+ <wire x1="3.3020" y1="0.0000" x2="2.7940" y2="0.5080" width="0.0254" layer="94"/>+ <wire x1="2.7940" y1="0.5080" x2="2.2860" y2="0.0000" width="0.0254" layer="94"/>+ <wire x1="2.2860" y1="0.0000" x2="2.7940" y2="-0.5080" width="0.0254" layer="94"/>+ <wire x1="2.7940" y1="-0.5080" x2="2.2860" y2="-0.5080" width="0.0254" layer="94"/>+ <text x="3.8100" y="3.8100" size="1.27" layer="95" align="center">>NAME</text>+ <text x="6.3500" y="-3.8100" size="1.27" layer="96" align="center">>VALUE</text>+ <pin name="1OUT" x="7.62" y="0" length="short" direction="oc" rot="R180"/>+ <pin name="1IN-" x="-7.62" y="-2.54" length="short" direction="in"/>+ <pin name="1IN+" x="-7.62" y="2.54" length="short" direction="in"/>+ <pin name="2IN+" x="-7.62" y="2.54" length="short" direction="in"/>+ <pin name="2IN-" x="-7.62" y="-2.54" length="short" direction="in"/>+ <pin name="2OUT" x="7.62" y="0" length="short" direction="oc" rot="R180"/>+ <wire x1="-2.5400" y1="-7.6200" x2="-2.5400" y2="-3.8100" width="0.254" layer="94"/>+ <pin name="GND" x="-2.54" y="-7.62" length="point" direction="pwr" rot="R90"/>+ <wire x1="-2.5400" y1="7.6200" x2="-2.5400" y2="3.8100" width="0.254" layer="94"/>+ <pin name="VCC" x="-2.54" y="7.62" length="point" direction="pwr" rot="R270"/> </symbol> </symbols> <devicesets>@@ -111,18 +126,25 @@ <gate name="G$1" symbol="LM2903" x="0" y="0"/> </gates> <devices>- <device name="" package="LM2903">+ <device name="" package="SOIC-8_3.9x4.9mm_P1.27mm"> <connects>- <connect gate="G$1" pin="1" pad="1"/>- <connect gate="G$1" pin="-" pad="2"/>- <connect gate="G$1" pin="+" pad="3"/>- <connect gate="G$1" pin="+@2" pad="5"/>- <connect gate="G$1" pin="-@2" pad="6"/>- <connect gate="G$1" pin="7" pad="7"/>- <connect gate="G$1" pin="V-" pad="4"/>- <connect gate="G$1" pin="V+" pad="8"/>+ <connect gate="G$1" pin="1OUT" pad="1"/>+ <connect gate="G$1" pin="1IN-" pad="2"/>+ <connect gate="G$1" pin="1IN+" pad="3"/>+ <connect gate="G$1" pin="2IN+" pad="5"/>+ <connect gate="G$1" pin="2IN-" pad="6"/>+ <connect gate="G$1" pin="2OUT" pad="7"/>+ <connect gate="G$1" pin="GND" pad="4"/>+ <connect gate="G$1" pin="VCC" pad="8"/> </connects>- <technologies><technology name=""/></technologies>+ <technologies>+ <technology name="">+ <attribute name="MPN" value="LM2903" constant="no"/>+ <attribute name="MANUFACTURER" value="Texas Instruments" constant="no"/>+ <attribute name="DATASHEET" value="https://www.ti.com/lit/ds/symlink/lm2903.pdf" constant="no"/>+ <attribute name="ADOM_WIKI" value="https://wiki.adom.inc/adom/lm2903" constant="no"/>+ </technology>+ </technologies> </device> </devices> </deviceset>
page.json+3−4@@ -100,7 +100,7 @@ "review_fix": { "at": "2026-11-10", "by": "part-reviewer (Ray review)",- "what": "Datasheet choice (symbol and page cited different documents): both now cite TI's LM2903 datasheet as the page cites; the symbol cited lm393.pdf."+ "what": "pin names set to the maker spelling from TI SLCS005AH Table 4-1 Pin Functions (SOIC): 0 on the page, 8 on the symbol (numbers unchanged)." } }, "viewers": {@@ -219,6 +219,5 @@ } ], "description": "Dual differential comparator with open-collector outputs, single or split supply.",- "org": "adom",- "visibility": "public"-}+ "org": "adom"+}