DAC900U

{
  "schema_version": 1,
  "type": "component",
  "slug": "dac900u",
  "title": "DAC900U",
  "brief": "Texas Instruments Digital To Analog Converters (DAC), SOIC-28-300mil. 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",
    "data acquisition",
    "dac900u",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "DAC900U",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-28-300mil",
    "pin_count": 28,
    "category": "Data Acquisition",
    "subcategory": "Digital To Analog Converters (DAC)",
    "datasheet": "https://www.ti.com/lit/ds/symlink/dac900.pdf",
    "parts": {
      "symbol": "dac900u.kicad_sym",
      "footprint": "dac900u.kicad_mod",
      "model_3d": "dac900u-hero.glb",
      "model_3d_plain": "dac900u-etched.glb",
      "model_3d_step": "dac900u-etched.step",
      "model_3d_step_plain": "dac900u.step",
      "lbr": "dac900u.lbr"
    },
    "distributor_links": {
      "lcsc": "C2679896",
      "digikey": "2156-DAC900U-ND",
      "mouser": "595-DAC900U"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T22:39:23Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2156-DAC900U-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-DAC900U",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Bit 1",
        "type": "input",
        "description": "Data bit 1 (D9), MSB of the 10-bit parallel data input."
      },
      {
        "number": "2",
        "name": "Bit 2",
        "type": "input",
        "description": "Data bit 2 (D8) of the 10-bit parallel data input."
      },
      {
        "number": "3",
        "name": "Bit 3",
        "type": "input",
        "description": "Data bit 3 (D7) of the 10-bit parallel data input."
      },
      {
        "number": "4",
        "name": "Bit 4",
        "type": "input",
        "description": "Data bit 4 (D6) of the 10-bit parallel data input."
      },
      {
        "number": "5",
        "name": "Bit 5",
        "type": "input",
        "description": "Data bit 5 (D5) of the 10-bit parallel data input."
      },
      {
        "number": "6",
        "name": "Bit 6",
        "type": "input",
        "description": "Data bit 6 (D4) of the 10-bit parallel data input."
      },
      {
        "number": "7",
        "name": "Bit 7",
        "type": "input",
        "description": "Data bit 7 (D3) of the 10-bit parallel data input."
      },
      {
        "number": "8",
        "name": "Bit 8",
        "type": "input",
        "description": "Data bit 8 (D2) of the 10-bit parallel data input."
      },
      {
        "number": "9",
        "name": "Bit 9",
        "type": "input",
        "description": "Data bit 9 (D1) of the 10-bit parallel data input."
      },
      {
        "number": "10",
        "name": "Bit 10",
        "type": "input",
        "description": "Data bit 10 (D0), LSB of the 10-bit parallel data input."
      },
      {
        "number": "11",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "12",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "13",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "14",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "15",
        "name": "PD",
        "type": "input",
        "description": "Power-down control input, active HIGH; it contains an internal pull-down circuit and may be left unconnected if not used."
      },
      {
        "number": "16",
        "name": "INT/EXT",
        "type": "input",
        "description": "Reference select pin: internal reference when low (=0) and external reference when high (=1)."
      },
      {
        "number": "17",
        "name": "REFIN",
        "type": "bidirectional",
        "description": "Reference input/output; see the Applications section for further details."
      },
      {
        "number": "18",
        "name": "FSA",
        "type": "passive",
        "description": "Full-scale output adjust pin, used with one external resistor to set the full-scale output current over 2mA to 20mA."
      },
      {
        "number": "19",
        "name": "BW",
        "type": "passive",
        "description": "Bandwidth/noise reduction pin; bypass with 0.1µF to +VA for optimum performance."
      },
      {
        "number": "20",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "21",
        "name": "IOUT",
        "type": "output",
        "description": "Complementary DAC current output."
      },
      {
        "number": "22",
        "name": "IOUT",
        "type": "output",
        "description": "DAC current output; output compliance range is -1.0V to +1.25V."
      },
      {
        "number": "23",
        "name": "BYP",
        "type": "passive",
        "description": "Bypass node; use 0.1µF to AGND."
      },
      {
        "number": "24",
        "name": "+VA",
        "type": "power_in",
        "description": "Analog supply voltage, 2.7V to 5.5V."
      },
      {
        "number": "25",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "26",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "27",
        "name": "+VD",
        "type": "power_in",
        "description": "Digital supply voltage, 2.7V to 5.5V."
      },
      {
        "number": "28",
        "name": "CLK",
        "type": "input",
        "description": "Clock input; data is latched on the rising edge of the clock."
      }
    ],
    "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: DAC900U is listed as SO-28 (drawing 217) and SOIC (DW) 28-pin. The pinout is taken from the shared S"
        ],
        "pages_sent": 8,
        "cost_usd": 0.0238,
        "at": "2026-11-05T22:39:12"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/dac900.pdf",
        "pages": 25,
        "sha256": "bfac39a60981286a",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 28,
        "described": 28,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "dac900u.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.3,
          17.9,
          2.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b889a13dbe9ec59e79fa9f1b5118b00bfa54f9582392335ff3365b64afc264b1",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "dac900u-etched.step",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "54b0c48201d15d3f820221ab0f9ba8206d3828949b5d7c942c5a89ca8dec35fd",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-28-300mil",
      "Category": "Data Acquisition",
      "Pins": "28"
    },
    "characteristics": {
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      "source": "datasheet",
      "datasheet_sha256": "bfac39a60981286ade743c290e621e1c179a1d865c012513e7de83fc9b175a40",
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          "name": "Output Update Rate",
          "symbol": "fCLOCK",
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        },
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          "name": "Output Update Rate",
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        {
          "name": "Full Specified Temperature Range, Operating Ambient",
          "symbol": "TA",
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          "name": "Differential Nonlinearity",
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        {
          "name": "Integral Nonlinearity",
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        {
          "name": "Spurious-Free Dynamic Range",
          "symbol": "SFDR",
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          "name": "Full-Scale Output Range",
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        {
          "name": "Gain Error",
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          "name": "Gain Error",
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        {
          "name": "Offset Error",
          "symbol": "",
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        {
          "name": "Power-Supply Rejection, +VA",
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          "unit": "%FSR/V",
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          "name": "Power-Supply Rejection, +VD",
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        {
          "name": "Reference Tolerance",
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          "name": "Reference Voltage Drift",
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          "name": "Logic High Voltage, VIH",
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        {
          "name": "Logic Low Voltage, VIL",
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          "name": "Logic High Current",
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          "name": "Logic Low Current",
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          "name": "Supply Voltage, +VA",
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          "name": "Supply Current, Power-Down Mode",
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          "min": null,
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        {
          "name": "Supply Current",
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        {
          "name": "Power Dissipation",
          "symbol": "",
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        {
          "name": "Thermal Resistance, θJA",
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          "name": "+VA to AGND",
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          "name": "CLK, PD to DGND",
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          "name": "D0-D9 to DGND",
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        {
          "name": "REFIN, FSA to AGND",
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        {
          "name": "INT/EXT to AGND",
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          "name": "Junction Temperature",
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          "conditions": "",
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          "name": "Case Temperature",
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          "name": "Storage Temperature",
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          "max": 125,
          "conditions": "",
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  "author": {
    "name": "Ray"
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