component
OPA857IRGTR
Public Made by Adomby adom
Texas Instruments Special Purpose Amplifiers, VQFN-16(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+54@@ -0,0 +1,54 @@+# OPA857IRGTR++**Texas Instruments** · Special Purpose Amplifiers · VQFN-16(3x3)++OPA857IRGTR from Texas Instruments, in a VQFN-16(3x3). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | GND | power_in | Ground connection. |+| 2 | CTRL | input | Control input to select transimpedance gain: GND (logic 0) selects 5-kΩ internal resistance, +VS (logic 1) selects 20-kΩ internal resistance. |+| 3 | GND | power_in | Ground connection. |+| 4 | GND | power_in | Ground connection. |+| 5 | OUTN | output | Common-mode voltage output reference with 25-Ω series internal resistor. |+| 6 | GND | power_in | Ground connection. |+| 7 | GND | power_in | Ground connection. |+| 8 | OUT | output | Signal output with 25-Ω series internal resistor limiting load current. |+| 9 | +VS | power_in | Supply voltage input, 2.7 V to 3.6 V. |+| 10 | +VS | power_in | Supply voltage input, 2.7 V to 3.6 V. |+| 11 | +VS | power_in | Supply voltage input, 2.7 V to 3.6 V. |+| 12 | GND | power_in | Ground connection. |+| 13 | Test_SD | input | Test mode enable pin; connect to GND for normal operation, connect to +VS to enable test mode. |+| 14 | Test_IN | input | Test mode input; connect to +VS during normal operation. |+| 15 | IN | input | Transimpedance amplifier input with internal protection diodes, maximum 10-mA input current. |+| 16 | NC | unconnected | Not connected. |+| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VQFN-16(3x3) |+| Category | Amplifiers/Comparators |+| Pins | 17 |++## CAD (KiCad official)++- Symbol: `OPA857IRGTR`+- Footprint: `Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm`+- 3D model: VQFN-16(3x3) (KiCad packages3D, STEP)+- 3D model files: `opa857irgtr-etched.step` / `opa857irgtr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `opa857irgtr.step` / `opa857irgtr.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/opa857) (34 pp, sha256 `345c9fe5e4bb5ed7`, retrieved 2026-10-05, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/opa857irgtr-datasheet.pdf)
page.jsonadded+214@@ -0,0 +1,214 @@+{+ "slug": "opa857irgtr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Special Purpose Amplifiers, VQFN-16(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "amplifiers-comparators",+ "opa857irgtr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "opa857irgtr.kicad_sym",+ "opa857irgtr.kicad_mod",+ "opa857irgtr.glb",+ "opa857irgtr.step",+ "opa857irgtr.lbr",+ "docs/hero.png",+ "docs/opa857irgtr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "opa857irgtr-hero.glb",+ "opa857irgtr-hero.overlay.json"+ ],+ "component": {+ "mpn": "OPA857IRGTR",+ "manufacturer": "Texas Instruments",+ "package": "VQFN-16(3x3)",+ "pin_count": 17,+ "category": "Amplifiers/Comparators",+ "subcategory": "Special Purpose Amplifiers",+ "datasheet": "https://www.ti.com/cn/lit/gpn/opa857",+ "parts": {+ "symbol": "opa857irgtr.kicad_sym",+ "footprint": "opa857irgtr.kicad_mod",+ "model_3d": "opa857irgtr-hero.glb",+ "model_3d_plain": "opa857irgtr.glb",+ "model_3d_step": "opa857irgtr-etched.step",+ "model_3d_step_plain": "opa857irgtr.step",+ "lbr": "opa857irgtr.lbr"+ },+ "distributor_links": {+ "lcsc": 970230,+ "digikey": "296-OPA857IRGTR-ND",+ "mouser": "595-OPA857IRGTR"+ },+ "distributor_check": {+ "checked_at": "2026-10-05T18:45:56Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-OPA857IRGTR-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-OPA857IRGTR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "GND",+ "type": "power_in",+ "description": "Ground connection."+ },+ {+ "number": "2",+ "name": "CTRL",+ "type": "input",+ "description": "Control input to select transimpedance gain: GND (logic 0) selects 5-kΩ internal resistance, +VS (logic 1) selects 20-kΩ internal resistance."+ },+ {+ "number": "3",+ "name": "GND",+ "type": "power_in",+ "description": "Ground connection."+ },+ {+ "number": "4",+ "name": "GND",+ "type": "power_in",+ "description": "Ground connection."+ },+ {+ "number": "5",+ "name": "OUTN",+ "type": "output",+ "description": "Common-mode voltage output reference with 25-Ω series internal resistor."+ },+ {+ "number": "6",+ "name": "GND",+ "type": "power_in",+ "description": "Ground connection."+ },+ {+ "number": "7",+ "name": "GND",+ "type": "power_in",+ "description": "Ground connection."+ },+ {+ "number": "8",+ "name": "OUT",+ "type": "output",+ "description": "Signal output with 25-Ω series internal resistor limiting load current."+ },+ {+ "number": "9",+ "name": "+VS",+ "type": "power_in",+ "description": "Supply voltage input, 2.7 V to 3.6 V."+ },+ {+ "number": "10",+ "name": "+VS",+ "type": "power_in",+ "description": "Supply voltage input, 2.7 V to 3.6 V."+ },+ {+ "number": "11",+ "name": "+VS",+ "type": "power_in",+ "description": "Supply voltage input, 2.7 V to 3.6 V."+ },+ {+ "number": "12",+ "name": "GND",+ "type": "power_in",+ "description": "Ground connection."+ },+ {+ "number": "13",+ "name": "Test_SD",+ "type": "input",+ "description": "Test mode enable pin; connect to GND for normal operation, connect to +VS to enable test mode."+ },+ {+ "number": "14",+ "name": "Test_IN",+ "type": "input",+ "description": "Test mode input; connect to +VS during normal operation."+ },+ {+ "number": "15",+ "name": "IN",+ "type": "input",+ "description": "Transimpedance amplifier input with internal protection diodes, maximum 10-mA input current."+ },+ {+ "number": "16",+ "name": "NC",+ "type": "unconnected",+ "description": "Not connected."+ },+ {+ "number": "17",+ "name": "EP",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "exposed pad 17 added from the footprint"+ ],+ "pages_sent": 12,+ "cost_usd": 0.1174,+ "at": "2026-10-05T18:45:42"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/opa857",+ "pages": 34,+ "sha256": "345c9fe5e4bb5ed7",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 17,+ "described": 17,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}