DG409LEDQ-T1-GE3

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  "type": "component",
  "slug": "dg409ledq-t1-ge3",
  "title": "DG409LEDQ-T1-GE3",
  "brief": "Vishay Analog Switches, Multiplexers, TSSOP-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "interface",
    "dg409ledq-t1-ge3"
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  "component": {
    "mpn": "DG409LEDQ-T1-GE3",
    "manufacturer": "Vishay",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Interface",
    "subcategory": "Analog Switches, Multiplexers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/19e8ad227faf4a0bbc922e22130ff7ad.pdf",
    "parts": {
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      "footprint": "dg409ledq-t1-ge3.kicad_mod",
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      "lbr": "dg409ledq-t1-ge3.lbr"
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "A0",
        "type": "input",
        "description": "Address input bit 0 (LSB). TTL/CMOS/LV (3 V) logic compatible digital control input. Selects which of the four differential channel pairs is connected to Da/Db when EN is high."
      },
      {
        "number": "2",
        "name": "EN",
        "type": "input",
        "description": "Enable input. When EN = logic low, all switches are OFF regardless of A0/A1. When EN = logic high, the addressed differential channel pair is ON. TTL/CMOS/LV (3 V) compatible."
      },
      {
        "number": "3",
        "name": "V-",
        "type": "power_in",
        "description": "Negative analog power supply. Tie to GND for single-supply operation (+3 V to +16 V) or to a negative rail for dual-supply operation (±3 V to ±8 V). V+ to V- rated 18 V max."
      },
      {
        "number": "4",
        "name": "S1a",
        "type": "passive",
        "description": "Source pin, channel 1, side A. Analog input/output of differential channel 1 (a-side). Connects to Da when A1=0, A0=0, EN=1. Bidirectional analog signal path with 17 Ω typical on-resistance."
      },
      {
        "number": "5",
        "name": "S2a",
        "type": "passive",
        "description": "Source pin, channel 2, side A. Analog input/output of differential channel 2 (a-side). Connects to Da when A1=0, A0=1, EN=1."
      },
      {
        "number": "6",
        "name": "S3a",
        "type": "passive",
        "description": "Source pin, channel 3, side A. Analog input/output of differential channel 3 (a-side). Connects to Da when A1=1, A0=0, EN=1."
      },
      {
        "number": "7",
        "name": "S4a",
        "type": "passive",
        "description": "Source pin, channel 4, side A. Analog input/output of differential channel 4 (a-side). Connects to Da when A1=1, A0=1, EN=1."
      },
      {
        "number": "8",
        "name": "Da",
        "type": "passive",
        "description": "Common drain, side A. Analog output/input of the a-side 4:1 multiplexer; connects to the selected S1a..S4a. Bidirectional; channels conduct equally well in both directions."
      },
      {
        "number": "9",
        "name": "Db",
        "type": "passive",
        "description": "Common drain, side B. Analog output/input of the b-side 4:1 multiplexer; connects to the selected S1b..S4b. Bidirectional."
      },
      {
        "number": "10",
        "name": "S4b",
        "type": "passive",
        "description": "Source pin, channel 4, side B. Analog input/output of differential channel 4 (b-side). Connects to Db when A1=1, A0=1, EN=1."
      },
      {
        "number": "11",
        "name": "S3b",
        "type": "passive",
        "description": "Source pin, channel 3, side B. Analog input/output of differential channel 3 (b-side). Connects to Db when A1=1, A0=0, EN=1."
      },
      {
        "number": "12",
        "name": "S2b",
        "type": "passive",
        "description": "Source pin, channel 2, side B. Analog input/output of differential channel 2 (b-side). Connects to Db when A1=0, A0=1, EN=1."
      },
      {
        "number": "13",
        "name": "S1b",
        "type": "passive",
        "description": "Source pin, channel 1, side B. Analog input/output of differential channel 1 (b-side). Connects to Db when A1=0, A0=0, EN=1."
      },
      {
        "number": "14",
        "name": "V+",
        "type": "power_in",
        "description": "Positive analog power supply. +3 V to +16 V single-supply, or up to +8 V for ±8 V dual-supply operation. V+ to V- rated 18 V absolute max."
      },
      {
        "number": "15",
        "name": "GND",
        "type": "power_in",
        "description": "Digital and logic ground reference for the address (A0/A1) and enable (EN) inputs."
      },
      {
        "number": "16",
        "name": "A1",
        "type": "input",
        "description": "Address input bit 1 (MSB). TTL/CMOS/LV (3 V) compatible digital control input. Together with A0 selects one of the four differential channel pairs when EN is high."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/19e8ad227faf4a0bbc922e22130ff7ad.pdf",
        "pages": 18,
        "sha256": "25c17230a1edebf9",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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        "zmin_mm": 0,
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        "sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",
        "checked": "2026-10-07",
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    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Vishay",
      "Package": "TSSOP-16",
      "Category": "Interface",
      "Pins": "16"
    }
  },
  "variants": [
    {
      "mpn": "DG409LEDQ-GE3",
      "kind": "unknown"
    },
    {
      "mpn": "DG409LEDQ-T1-GE3",
      "kind": "packaging"
    },
    {
      "mpn": "DG409LEDY-GE3",
      "kind": "unknown"
    },
    {
      "mpn": "DG409LEDY-T1-GE3",
      "kind": "unknown"
    },
    {
      "mpn": "DG409LEDN-T1-GE4",
      "kind": "unknown"
    }
  ],
  "sections": [
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  "discovery_triggers": [
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  "discovery_pitch": "DG409LEDQ-T1-GE3 (Vishay) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
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  "visibility": {
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  "updated_at": "2026-09-24T19:44:21.971Z"
}