PGA855RGTR

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  "slug": "pga855rgtr",
  "title": "PGA855RGTR",
  "brief": "Texas Instruments Instrumentation Amplifiers, VQFN-16-EP(3x3). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
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  "component": {
    "mpn": "PGA855RGTR",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-16-EP(3x3)",
    "pin_count": 17,
    "category": "Amplifiers/Comparators",
    "subcategory": "Instrumentation Amplifiers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/pga855.pdf",
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    "pins": [
      {
        "number": "1",
        "name": "A2",
        "type": "input",
        "description": "Gain option pin 2. Digital gain selection input (MSB of the 3-bit binary gain code that selects 0.125-16 V/V). Referenced to DGND."
      },
      {
        "number": "2",
        "name": "IN+",
        "type": "input",
        "description": "Positive (noninverting) analog signal input to the instrumentation amplifier front end. Overvoltage protected to ±40 V beyond supplies."
      },
      {
        "number": "3",
        "name": "IN-",
        "type": "input",
        "description": "Negative (inverting) analog signal input to the instrumentation amplifier front end. Overvoltage protected to ±40 V beyond supplies."
      },
      {
        "number": "4",
        "name": "A0",
        "type": "input",
        "description": "Gain option pin 0. Digital gain selection input (LSB of the 3-bit binary gain code that selects 0.125-16 V/V). Referenced to DGND."
      },
      {
        "number": "5",
        "name": "A1",
        "type": "input",
        "description": "Gain option pin 1. Digital gain selection input (middle bit of the 3-bit binary gain code that selects 0.125-16 V/V). Referenced to DGND."
      },
      {
        "number": "6",
        "name": "VS+",
        "type": "power_in",
        "description": "Input-stage positive supply. Single-supply range 8-36 V or dual-supply ±4 V to ±18 V (with VS-). Decouple locally to VS-."
      },
      {
        "number": "7",
        "name": "LVDD",
        "type": "power_in",
        "description": "Output driver positive supply. Connect this pin to the positive supply of the ADC to protect from overdriving. Range 4.5-36 V single or ±2.25 V to ±18 V dual with LVSS."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect. Do not connect this pin to any external signal, power, or ground."
      },
      {
        "number": "9",
        "name": "FDA_IN+",
        "type": "input",
        "description": "Fully differential amplifier (output driver) positive summing-node connection. Used with external feedback resistors to set output-stage gain/topology."
      },
      {
        "number": "10",
        "name": "OUT+",
        "type": "output",
        "description": "Noninverting differential output of the output driver. Signal-output current limited to ±100 mA; short-circuit current is continuous to VSOUT/2."
      },
      {
        "number": "11",
        "name": "OUT-",
        "type": "output",
        "description": "Inverting differential output of the output driver. Signal-output current limited to ±100 mA; short-circuit current is continuous to VSOUT/2."
      },
      {
        "number": "12",
        "name": "FDA_IN-",
        "type": "input",
        "description": "Fully differential amplifier (output driver) negative summing-node connection. Used with external feedback resistors to set output-stage gain/topology."
      },
      {
        "number": "13",
        "name": "VOCM",
        "type": "input",
        "description": "Output common-mode set input. Sets the common-mode voltage of the differential OUT+/OUT- pair (typically driven to mid-supply of the target ADC)."
      },
      {
        "number": "14",
        "name": "LVSS",
        "type": "power_in",
        "description": "Output driver negative supply. Connect this pin to the negative supply of the ADC to protect from overdriving. Can be GND for single-supply output stages."
      },
      {
        "number": "15",
        "name": "VS-",
        "type": "power_in",
        "description": "Input-stage negative supply. Use with VS+ to provide 8-36 V single or ±4 V to ±18 V dual supply for the instrumentation amplifier input stage."
      },
      {
        "number": "16",
        "name": "DGND",
        "type": "power_in",
        "description": "Ground reference for digital logic and the A0/A1/A2 gain-setting pins."
      },
      {
        "number": "17",
        "name": "PAD",
        "type": "passive",
        "description": "Exposed thermal pad. Must be soldered to the PCB. Connect to a plane or large copper pour that is either floating or electrically connected to VS-, even for low-power-dissipation applications."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/pga855.pdf",
        "pages": 41,
        "sha256": "ac37e972feda1b75",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 17,
        "described": 17,
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        "refuses_to_fabricate": true
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "VQFN-16-EP(3x3)",
      "Category": "Amplifiers/Comparators",
      "Pins": "17"
    }
  },
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      "mpn": "PGA855RGTR",
      "kind": "packaging"
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    {
      "mpn": "PGA855RGTRRGTT",
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  "discovery_pitch": "PGA855RGTR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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  "updated_at": "2026-09-25T04:17:26.681Z"
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