component
LM2903 Dual Comparator
Public Unreviewedby adom
Dual differential comparator with open-collector outputs, single or split supply.
master
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{
"schema_version": 1,
"type": "component",
"slug": "lm2903",
"title": "LM2903 Dual Comparator",
"brief": "Dual differential comparator with open-collector outputs, single or split supply.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"comparator",
"dual",
"open-collector",
"single-supply",
"ti",
"soic-8"
],
"component": {
"mpn": "LM2903",
"manufacturer": "Texas Instruments",
"package": "SOIC-8",
"pin_count": 8,
"category": "Analog",
"subcategory": "Comparator",
"datasheet": "https://www.ti.com/lit/ds/symlink/lm2903.pdf",
"parts": {
"symbol": "lm2903.kicad_sym",
"footprint": "lm2903.kicad_mod",
"model_3d": "lm2903-etched.glb",
"model_3d_plain": "lm2903.glb",
"lbr": "lm2903.lbr",
"model_3d_step": "lm2903-etched.step",
"model_3d_step_plain": "lm2903.step"
},
"distributor_links": {},
"pins": [
{
"number": "1",
"name": "1OUT",
"type": "output",
"description": "Output pin of comparator 1. Open-collector output; requires an external pull-up resistor to VCC. Compatible with TTL, MOS, and CMOS logic. Low-level output voltage typically 110 mV (400 mV max) at ISINK ≤ 4 mA."
},
{
"number": "2",
"name": "1IN-",
"type": "input",
"description": "Inverting (negative) input of comparator 1. Common-mode input range extends from V- (ground) up to (V+) - 2.0V. Input bias current typically -3.5 nA (-25 nA max)."
},
{
"number": "3",
"name": "1IN+",
"type": "input",
"description": "Non-inverting (positive) input of comparator 1. Common-mode input range extends from V- (ground) up to (V+) - 2.0V. Input bias current typically -3.5 nA (-25 nA max)."
},
{
"number": "4",
"name": "GND",
"type": "power_in",
"description": "Ground (V-). Negative supply / reference for both comparators. Connect to system ground for single-supply operation."
},
{
"number": "5",
"name": "2IN+",
"type": "input",
"description": "Non-inverting (positive) input of comparator 2. Common-mode input range extends from V- (ground) up to (V+) - 2.0V. Input bias current typically -3.5 nA (-25 nA max)."
},
{
"number": "6",
"name": "2IN-",
"type": "input",
"description": "Inverting (negative) input of comparator 2. Common-mode input range extends from V- (ground) up to (V+) - 2.0V. Input bias current typically -3.5 nA (-25 nA max)."
},
{
"number": "7",
"name": "2OUT",
"type": "output",
"description": "Output pin of comparator 2. Open-collector output; requires an external pull-up resistor to VCC. Compatible with TTL, MOS, and CMOS logic. Low-level output voltage typically 110 mV (400 mV max) at ISINK ≤ 4 mA."
},
{
"number": "8",
"name": "VCC",
"type": "power_in",
"description": "Positive supply (V+). Operating range 2V to 30V (LM2903), absolute maximum 36V. Quiescent current typically 400 µA (600 µA max) at VS = 5V, no load."
}
],
"provenance": {
"extractor": "ds2sf",
"datasheet": {
"url": "https://www.ti.com/lit/ds/symlink/lm2903.pdf",
"pages": 56,
"sha256": "24c6b3c03dd65dfd",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 8,
"described": 8,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
}
},
"metadata": {
"specs": {
"Type": "Dual differential comparator",
"Output": "Open-collector",
"Supply voltage": "2 V to 36 V single, or +-1 V to +-18 V",
"Input offset voltage": "2 mV typ",
"Response time": "1.5 us typ",
"Operating temperature": "-40 C to 125 C"
}
},
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"dual comparator",
"voltage comparator",
"threshold detector",
"open-collector comparator"
],
"discovery_pitch": "Two open-collector comparators for threshold detection and level sensing on a single supply, the automotive-grade LM393.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"lm2903.kicad_sym",
"lm2903.kicad_mod",
"lm2903.glb",
"lm2903.lbr",
"docs/hero.png",
"docs/lm2903-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"lm2903-etched.step"
],
"variants": [
{
"mpn": "LM2903D",
"kind": "unknown"
},
{
"mpn": "LM2903DGK",
"kind": "unknown"
},
{
"mpn": "LM2903P",
"kind": "unknown"
},
{
"mpn": "LM2903PS",
"kind": "unknown"
},
{
"mpn": "LM2903PW",
"kind": "unknown"
}
]
}