component
BUF634AIDR
Public Made by Adomby adom
Texas Instruments Operational Amplifier, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
Ray
buf634aidr: specified limits as data (metadata.characteristics, 38 rows from the datasheet)
3d57db3
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668
{
"schema_version": 1,
"type": "component",
"slug": "buf634aidr",
"title": "BUF634AIDR",
"brief": "Texas Instruments Operational Amplifier, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"amplifiers-comparators",
"buf634aidr",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "BUF634AIDR",
"manufacturer": "Texas Instruments",
"package": "SOIC-8",
"pin_count": 8,
"category": "Amplifiers/Comparators",
"subcategory": "Operational Amplifier",
"datasheet": "https://www.ti.com/lit/ds/symlink/buf634a.pdf",
"parts": {
"symbol": "buf634aidr.kicad_sym",
"footprint": "buf634aidr.kicad_mod",
"model_3d": "buf634aidr-etched.glb",
"model_3d_plain": "buf634aidr.glb",
"model_3d_step": "buf634aidr-etched.step",
"model_3d_step_plain": "buf634aidr.step",
"lbr": "buf634aidr.lbr"
},
"distributor_links": {
"lcsc": "C2058426"
},
"pins": [
{
"number": "1",
"name": "BW",
"type": "input",
"description": "Bandwidth adjustment input; connect to V- pin for wide-bandwidth mode (210 MHz) or leave floating for low-quiescent current mode (35 MHz)."
},
{
"number": "2",
"name": "NC",
"type": "unconnected",
"description": "No internal connection."
},
{
"number": "3",
"name": "VIN",
"type": "power_in",
"description": "Signal input; accepts linear input voltage range of -13 V to +13 V at RL = 1 kΩ."
},
{
"number": "4",
"name": "V–",
"type": "power_in",
"description": "Negative power supply; operating range ±2.25 V to ±18 V total supply voltage."
},
{
"number": "5",
"name": "NC",
"type": "unconnected",
"description": "No internal connection."
},
{
"number": "6",
"name": "VO",
"type": "output",
"description": "Output; delivers up to ±250 mA continuous output current with output voltage swing from 1.6 V to 2.5 V from supplies depending on output current."
},
{
"number": "7",
"name": "V+",
"type": "power_in",
"description": "Positive power supply; operating range ±2.25 V to ±18 V total supply voltage."
},
{
"number": "8",
"name": "NC",
"type": "unconnected",
"description": "No internal connection."
}
],
"provenance": {
"extractor": "extract_pins 0.2",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.2",
"primary_model": "claude-haiku-4-5-20251001",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [],
"pages_sent": 47,
"cost_usd": 0.3436,
"at": "2026-09-23T14:35:19"
},
"datasheet": {
"url": "https://www.ti.com/lit/ds/symlink/buf634a.pdf",
"pages": 47,
"sha256": "556148100a323c7c",
"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"
},
"models_3d": [
{
"file": "buf634aidr.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6,
4.9,
1.75
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
"checked": "2026-10-07",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "buf634aidr-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6,
4.9,
1.75
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "e8523a97c2cdcd997931ba54e3eeb1907ed832112c0d2b76add4eb3cd372280a",
"checked": "2026-10-07",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "SOIC-8",
"Category": "Amplifiers/Comparators",
"Pins": "8"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "556148100a323c7c",
"rows": [
{
"name": "Supply voltage VS = (V+) – (V–)",
"symbol": "VS",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 40,
"conditions": "printed as 40 (±20)",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Input voltage",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.5,
"typ": null,
"max": 0.5,
"conditions": "printed as VS ± 0.5 V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Operating ambient temperature",
"symbol": "TA",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Junction temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Storage temperature",
"symbol": "Tstg",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Supply voltage (recommended)",
"symbol": "VS",
"kind": "recommended_operating",
"unit": "V",
"min": 2.25,
"typ": 15,
"max": 18,
"conditions": "printed as ±2.25 / ±15 / ±18 V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Ambient temperature (recommended)",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": 25,
"max": 125,
"conditions": "limited by RθJA and TJ,Max for safe operation (footnote 1)",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Input offset voltage (Wide-BW mode)",
"symbol": "VOS",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 36,
"max": 65,
"conditions": "TA = 25℃",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Input bias current (Wide-BW mode)",
"symbol": "IB",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.25,
"max": 2,
"conditions": "VIN = 0 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Gain (Wide-BW mode), RL = 1 kΩ",
"symbol": "G",
"kind": "electrical",
"unit": "V/V",
"min": null,
"typ": 0.95,
"max": 0.99,
"conditions": "VO = ±10 V, RL = 1 kΩ",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Gain (Wide-BW mode), RL = 100 Ω",
"symbol": "G",
"kind": "electrical",
"unit": "V/V",
"min": null,
"typ": 0.93,
"max": 0.95,
"conditions": "VO = ±10 V, RL = 100 Ω",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Gain (Wide-BW mode), RL = 67 Ω",
"symbol": "G",
"kind": "electrical",
"unit": "V/V",
"min": null,
"typ": 0.91,
"max": 0.93,
"conditions": "VO = ±10 V, RL = 67 Ω",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Linear input voltage range (Wide-BW mode)",
"symbol": "",
"kind": "electrical",
"unit": "V",
"min": -13,
"typ": null,
"max": 13,
"conditions": "RL = 1 kΩ, IB < 10 µA",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Output headroom to supplies (Wide-BW mode)",
"symbol": "",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 1.6,
"max": 1.8,
"conditions": "IO = ±10 mA",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Output headroom to supplies (Wide-BW mode)",
"symbol": "",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 2,
"max": 2.2,
"conditions": "IO = ±100 mA",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Output headroom to supplies (Wide-BW mode)",
"symbol": "",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 2.2,
"max": 2.5,
"conditions": "IO = ±150 mA",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Short-circuit current (Wide-BW mode)",
"symbol": "ISC",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 375,
"max": 550,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Operating voltage range (Wide-BW mode)",
"symbol": "VS",
"kind": "electrical",
"unit": "V",
"min": 2.25,
"typ": null,
"max": 18,
"conditions": "printed as ±2.25 / ±18 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Quiescent current (Wide-BW mode)",
"symbol": "IQ",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 8.5,
"max": 12,
"conditions": "IO = 0 mA",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Power-supply rejection ratio (Wide-BW mode)",
"symbol": "PSRR",
"kind": "electrical",
"unit": "dB",
"min": 64,
"typ": 75,
"max": null,
"conditions": "VS = ±2.25 V to ±18 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Input offset voltage (Low-IQ mode)",
"symbol": "VOS",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 36,
"max": 65,
"conditions": "TA = 25℃",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Input bias current (Low-IQ mode)",
"symbol": "IB",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.03,
"max": 0.25,
"conditions": "VIN = 0 V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Gain (Low-IQ mode), RL = 1 kΩ",
"symbol": "G",
"kind": "electrical",
"unit": "V/V",
"min": null,
"typ": 0.95,
"max": 0.99,
"conditions": "VO = ±10 V, RL = 1 kΩ",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Gain (Low-IQ mode), RL = 100 Ω",
"symbol": "G",
"kind": "electrical",
"unit": "V/V",
"min": null,
"typ": 0.93,
"max": 0.95,
"conditions": "VO = ±10 V, RL = 100 Ω",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Gain (Low-IQ mode), RL = 67 Ω",
"symbol": "G",
"kind": "electrical",
"unit": "V/V",
"min": null,
"typ": 0.91,
"max": 0.93,
"conditions": "VO = ±10 V, RL = 67 Ω",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Linear input voltage range (Low-IQ mode)",
"symbol": "",
"kind": "electrical",
"unit": "V",
"min": -13,
"typ": null,
"max": 13,
"conditions": "RL = 1 kΩ, IB < 10 µA",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Output headroom to supplies (Low-IQ mode)",
"symbol": "",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 1.6,
"max": 1.8,
"conditions": "IO = ±10 mA",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Output headroom to supplies (Low-IQ mode)",
"symbol": "",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 2,
"max": 2.2,
"conditions": "IO = ±100 mA",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Output headroom to supplies (Low-IQ mode)",
"symbol": "",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 2.2,
"max": 2.5,
"conditions": "IO = ±150 mA",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Short-circuit current (Low-IQ mode)",
"symbol": "ISC",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 350,
"max": 550,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Operating voltage range (Low-IQ mode)",
"symbol": "VS",
"kind": "electrical",
"unit": "V",
"min": 2.25,
"typ": null,
"max": 18,
"conditions": "printed as ±2.25 / ±18 V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Quiescent current (Low-IQ mode)",
"symbol": "IQ",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 1.5,
"max": 2.3,
"conditions": "IO = 0",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Power-supply rejection ratio (Low-IQ mode)",
"symbol": "PSRR",
"kind": "electrical",
"unit": "dB",
"min": 64,
"typ": 80,
"max": null,
"conditions": "VS = ±2.25 V to ±18 V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Junction-to-ambient thermal resistance (D SOIC)",
"symbol": "RθJA",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 122.9,
"max": null,
"conditions": "D (SOIC) package, 8 pins",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Junction-to-case (top) thermal resistance (D SOIC)",
"symbol": "RθJC(top)",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 55.2,
"max": null,
"conditions": "D (SOIC) package, 8 pins",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Junction-to-board thermal resistance (D SOIC)",
"symbol": "RθJB",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 68.4,
"max": null,
"conditions": "D (SOIC) package, 8 pins",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Junction-to-top characterization parameter (D SOIC)",
"symbol": "ΨJT",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 12.1,
"max": null,
"conditions": "D (SOIC) package, 8 pins",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Junction-to-board characterization parameter (D SOIC)",
"symbol": "ΨJB",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 67.2,
"max": null,
"conditions": "D (SOIC) package, 8 pins",
"source_page": 4,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"buf634aidr"
],
"discovery_pitch": "BUF634AIDR (Texas Instruments) component page with datasheet-verified CAD.",
"author": {
"name": "Ray"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"buf634aidr.kicad_sym",
"buf634aidr.kicad_mod",
"buf634aidr.glb",
"buf634aidr.step",
"buf634aidr.lbr",
"docs/hero.png",
"docs/buf634aidr-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html"
],
"visibility": {
"public": true
},
"updated_at": "2026-09-24T18:16:15.606Z"
}