main
Ray Publish 0.1.0 d46bca5 11d ago
{
  "slug": "log300rgtr",
  "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",
    "log300rgtr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "log300rgtr.kicad_sym",
    "log300rgtr.kicad_mod",
    "log300rgtr.glb",
    "log300rgtr.step",
    "log300rgtr.lbr",
    "docs/hero.png",
    "docs/log300rgtr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "log300rgtr-hero.glb",
    "log300rgtr-hero.overlay.json",
    "log300rgtr-etched.glb"
  ],
  "component": {
    "mpn": "LOG300RGTR",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-16(3x3)",
    "pin_count": 17,
    "category": "Amplifiers/Comparators",
    "subcategory": "Special Purpose Amplifiers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/log300.pdf",
    "parts": {
      "symbol": "log300rgtr.kicad_sym",
      "footprint": "log300rgtr.kicad_mod",
      "model_3d": "log300rgtr-hero.glb",
      "model_3d_plain": "log300rgtr-etched.glb",
      "model_3d_step": "log300rgtr-etched.step",
      "model_3d_step_plain": "log300rgtr.step",
      "lbr": "log300rgtr.lbr"
    },
    "distributor_links": {
      "lcsc": "C43355246"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T22:20:03Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply pin; recommended supply voltage is 3 V to 5.25 V, with an absolute maximum supply voltage of 5.5 V."
      },
      {
        "number": "2",
        "name": "Log_Out",
        "type": "output",
        "description": "Unbuffered output of the Log Detector block; connect a resistor RF to set the input-to-output slope and a capacitor CF to set the response time."
      },
      {
        "number": "3",
        "name": "Ref_Res",
        "type": "input",
        "description": "Connect a 1% 56 kΩ resistor to this pin; float it if the default relaxed slope accuracy is acceptable."
      },
      {
        "number": "4",
        "name": "Freq_Supply",
        "type": "power_in",
        "description": "Power supply for the Freq_Out function; float this pin if the frequency-detection feature is not required."
      },
      {
        "number": "5",
        "name": "Freq_Out",
        "type": "output",
        "description": "Output that toggles at the same signal frequency applied at Log_In."
      },
      {
        "number": "6",
        "name": "Inv_Buffer",
        "type": "output",
        "description": "Inverted buffered output, with VInv_Buffer = VCC - VLog_Out × 2."
      },
      {
        "number": "7",
        "name": "Buffer",
        "type": "output",
        "description": "Noninverting buffered output, with VBuffer = VLog_Out × 2."
      },
      {
        "number": "8",
        "name": "Log_Inm",
        "type": "input",
        "description": "Inverting input of the Log Detector block; connect an appropriate capacitor to ground when used with a single-ended input."
      },
      {
        "number": "9",
        "name": "Log_Inp",
        "type": "input",
        "description": "Noninverting input of the Log Detector block."
      },
      {
        "number": "10",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground for the LNA and Log Detector block."
      },
      {
        "number": "11",
        "name": "LNA_Out",
        "type": "output",
        "description": "Low-noise amplifier output."
      },
      {
        "number": "12",
        "name": "Offset_Cap",
        "type": "input",
        "description": "Connect a recommended capacitor from this pin to ground; it sets the pole of the internal offset correction loop."
      },
      {
        "number": "13",
        "name": "LNA_In",
        "type": "input",
        "description": "Low-noise amplifier input; the absolute maximum LNA input voltage is ±1 VP."
      },
      {
        "number": "14",
        "name": "AFE_En",
        "type": "input",
        "description": "LNA and Log Detector block enable and disable pin; High enables the AFE, and floating keeps both blocks enabled."
      },
      {
        "number": "15",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground for the Freq_Out pin."
      },
      {
        "number": "16",
        "name": "LNA_En",
        "type": "input",
        "description": "Low-noise amplifier enable and disable pin; High enables the LNA, and floating keeps the LNA enabled."
      },
      {
        "number": "17",
        "name": "Thermal Pad",
        "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-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The VQFN package has a thermal pad (listed in Table 4-1 and Figure 4-2 without a number). It is elec; Pin numbers and types were taken from the RGT (VQFN) column of Table 4-1 and cross-checked against t",
          "exposed pad 17 added from the footprint"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0487,
        "at": "2026-10-17T22:18:59"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/log300.pdf",
        "pages": 34,
        "sha256": "1704327da3434139",
        "source_tier": "mfr"
      },
      "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"
    },
    "models_3d": [
      {
        "file": "log300rgtr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          3.0,
          0.785
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3eb81ffac423a66cdcfead8efe56401da171edaf1f2257049aad7b2d3900f6c8",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "log300rgtr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          3.0,
          0.785
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "7a14ffc77f97ccb2d1d9a7ccf81e554ccea4b16d1b3aad83f0ee1b8b4f0c6589",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}