main
Ray ad8421brmz-r7: specified limits as data (metadata.characteristics, 49 rows from the datasheet) e0d5974 27d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "ad8421brmz-r7",
  "title": "AD8421BRMZ-R7",
  "brief": "Analog Devices Instrumentation Amplifiers, MSOP-8. 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",
    "amplifiers-comparators",
    "ad8421brmz-r7",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "AD8421BRMZ-R7",
    "manufacturer": "Analog Devices",
    "package": "MSOP-8",
    "pin_count": 8,
    "category": "Amplifiers/Comparators",
    "subcategory": "Instrumentation Amplifiers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588915723448569856",
    "parts": {
      "symbol": "ad8421brmz-r7.kicad_sym",
      "footprint": "ad8421brmz-r7.kicad_mod",
      "model_3d": "ad8421brmz-r7-etched.glb",
      "model_3d_plain": "ad8421brmz-r7.glb",
      "model_3d_step": "ad8421brmz-r7-etched.step",
      "model_3d_step_plain": "ad8421brmz-r7.step",
      "lbr": "ad8421brmz-r7.lbr"
    },
    "distributor_links": {
      "lcsc": "C652813"
    },
    "pins": [
      {
        "number": "1",
        "name": "-IN",
        "type": "input",
        "description": "Negative differential input pin accepting signals from −VS + 2.3 V to +VS − 1.8 V."
      },
      {
        "number": "2",
        "name": "RG",
        "type": "passive",
        "description": "Gain-setting resistor connection pin; place external resistor between pins 2 and 3 to set G = 1 + (9.9 kΩ/RG)."
      },
      {
        "number": "3",
        "name": "RG",
        "type": "passive",
        "description": "Gain-setting resistor connection pin; place external resistor between pins 2 and 3 to set G = 1 + (9.9 kΩ/RG)."
      },
      {
        "number": "4",
        "name": "+IN",
        "type": "input",
        "description": "Positive differential input pin accepting signals from −VS + 2.3 V to +VS − 1.8 V."
      },
      {
        "number": "5",
        "name": "-VS",
        "type": "power_in",
        "description": "Negative power supply pin for ±2.5 V to ±18 V dual supply operation."
      },
      {
        "number": "6",
        "name": "REF",
        "type": "input",
        "description": "Reference voltage input pin with 20 kΩ input impedance for output level shifting; voltage range −VS to +VS."
      },
      {
        "number": "7",
        "name": "VOUT",
        "type": "output",
        "description": "Analog output pin with swing from −VS + 1.2 V to +VS − 1.6 V at load resistance RL = 2 kΩ."
      },
      {
        "number": "8",
        "name": "+VS",
        "type": "power_in",
        "description": "Positive power supply pin for ±2.5 V to ±18 V dual supply operation."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-4-6",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 28,
        "cost_usd": 0.2707,
        "at": "2026-09-22T02:48:00"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588915723448569856",
        "pages": 28,
        "sha256": "cee2fa8289e5925e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ad8421brmz-r7.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          0.95
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "847c4c5023fe1603fbd36900a5dcc4bd3901ba473f71d42c9a469f0236eaadf3",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ad8421brmz-r7-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          0.95
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "a64a3be2c6cbb3c4a124cac3f8ea9fa0fbaeb92350f5192c8c941bda49326923",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Analog Devices",
      "Package": "MSOP-8",
      "Category": "Amplifiers/Comparators",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "cee2fa8289e5925e",
      "rows": [
        {
          "name": "CMRR, DC to 60 Hz, G = 1 (BRM)",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 92,
          "typ": null,
          "max": null,
          "conditions": "DC至60 Hz的CMRR,1 kΩ非均衡信号源,VCM = −10 V至+10 V,G = 1",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "CMRR, DC to 60 Hz, G = 10 (BRM)",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 112,
          "typ": null,
          "max": null,
          "conditions": "DC至60 Hz的CMRR,1 kΩ非均衡信号源,VCM = −10 V至+10 V,G = 10",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "CMRR, DC to 60 Hz, G = 100 (BRM)",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 132,
          "typ": null,
          "max": null,
          "conditions": "DC至60 Hz的CMRR,1 kΩ非均衡信号源,VCM = −10 V至+10 V,G = 100",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "CMRR, DC to 60 Hz, G = 1000 (BRM)",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 140,
          "typ": null,
          "max": null,
          "conditions": "DC至60 Hz的CMRR,1 kΩ非均衡信号源,VCM = −10 V至+10 V,G = 1000",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "CMRR over full temperature, G = 1 (BRM)",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 90,
          "typ": null,
          "max": null,
          "conditions": "全温度范围,G = 1,TA = −40°C至+85°C",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "CMRR at 20 kHz, G = 1 (BRM)",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 80,
          "typ": null,
          "max": null,
          "conditions": "20 kHz时的CMRR,VCM = −10 V至+10 V,G = 1",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "CMRR at 20 kHz, G = 10 (BRM)",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 90,
          "typ": null,
          "max": null,
          "conditions": "20 kHz时的CMRR,VCM = −10 V至+10 V,G = 10",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "CMRR at 20 kHz, G = 100 (BRM)",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 100,
          "typ": null,
          "max": null,
          "conditions": "20 kHz时的CMRR,VCM = −10 V至+10 V,G = 100",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "CMRR at 20 kHz, G = 1000 (BRM)",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 100,
          "typ": null,
          "max": null,
          "conditions": "20 kHz时的CMRR,VCM = −10 V至+10 V,G = 1000",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input voltage noise density (BRM)",
          "symbol": "eni",
          "kind": "electrical",
          "unit": "nV/√Hz",
          "min": null,
          "typ": 3,
          "max": 3.2,
          "conditions": "1 kHz,VIN+, VIN− = 0 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Peak-to-peak RTI voltage noise, G = 1 (BRM)",
          "symbol": "",
          "kind": "electrical",
          "unit": "µV p-p",
          "min": null,
          "typ": 2,
          "max": 2.2,
          "conditions": "f = 0.1 Hz至10 Hz,RTI,G = 1",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Peak-to-peak RTI voltage noise, G = 100 to 1000 (BRM)",
          "symbol": "",
          "kind": "electrical",
          "unit": "µV p-p",
          "min": null,
          "typ": 0.07,
          "max": 0.09,
          "conditions": "f = 0.1 Hz至10 Hz,RTI,G = 100至1000",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input offset voltage, VOSI (BRM)",
          "symbol": "VOSI",
          "kind": "electrical",
          "unit": "µV",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "VS = ±5 V至±15 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input offset voltage over full temperature, VOSI (BRM)",
          "symbol": "VOSI",
          "kind": "electrical",
          "unit": "µV",
          "min": null,
          "typ": null,
          "max": 135,
          "conditions": "全温度范围 TA = −40°C至+85°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input offset voltage average temperature coefficient, VOSI (BRM)",
          "symbol": "VOSI",
          "kind": "temperature_coefficient",
          "unit": "µV/°C",
          "min": null,
          "typ": null,
          "max": 0.9,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Output offset voltage, VOSO (BRM)",
          "symbol": "VOSO",
          "kind": "electrical",
          "unit": "µV",
          "min": null,
          "typ": null,
          "max": 400,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output offset voltage over full temperature, VOSO (BRM)",
          "symbol": "VOSO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "全温度范围 TA = −40°C至+85°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output offset voltage average temperature coefficient, VOSO (BRM)",
          "symbol": "VOSO",
          "kind": "temperature_coefficient",
          "unit": "µV/°C",
          "min": null,
          "typ": null,
          "max": 9,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "PSR, G = 1 (BRM)",
          "symbol": "",
          "kind": "electrical",
          "unit": "dB",
          "min": 100,
          "typ": 120,
          "max": null,
          "conditions": "VS = ±2.5 V至±18 V,G = 1",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "PSR, G = 10 (BRM)",
          "symbol": "",
          "kind": "electrical",
          "unit": "dB",
          "min": 120,
          "typ": 140,
          "max": null,
          "conditions": "VS = ±2.5 V至±18 V,G = 10",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "PSR, G = 100 (BRM)",
          "symbol": "",
          "kind": "electrical",
          "unit": "dB",
          "min": 140,
          "typ": 150,
          "max": null,
          "conditions": "VS = ±2.5 V至±18 V,G = 100",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "PSR, G = 1000 (BRM)",
          "symbol": "",
          "kind": "electrical",
          "unit": "dB",
          "min": 140,
          "typ": 150,
          "max": null,
          "conditions": "VS = ±2.5 V至±18 V,G = 1000",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input bias current (BRM)",
          "symbol": "",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 0.1,
          "max": 1,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input bias current over full temperature (BRM)",
          "symbol": "",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
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          "conditions": "全温度范围 TA = −40°C至+85°C",
          "source_page": 6,
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        {
          "name": "Input offset current (BRM)",
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          "kind": "electrical",
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          "source": "datasheet"
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        {
          "name": "Input offset current over full temperature (BRM)",
          "symbol": "",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "全温度范围 TA = −40°C至+85°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Gain range",
          "symbol": "",
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          "typ": null,
          "max": 10000,
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        {
          "name": "Gain error, G = 1 (BRM)",
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          "kind": "tolerance",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 0.02,
          "conditions": "VOUT = ±10 V,G = 1",
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          "source": "datasheet"
        },
        {
          "name": "Gain error, G = 10 to 1000 (BRM)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 0.2,
          "conditions": "VOUT = ±10 V,G = 10至1000",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Gain nonlinearity, G = 1, RL = 600 Ω (BRM)",
          "symbol": "",
          "kind": "electrical",
          "unit": "ppm",
          "min": null,
          "typ": 1,
          "max": 3,
          "conditions": "VOUT = −10 V至+10 V,G = 1,RL = 600 Ω",
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          "source": "datasheet"
        },
        {
          "name": "Gain nonlinearity, G = 10 to 1000 (BRM)",
          "symbol": "",
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          "unit": "ppm",
          "min": null,
          "typ": 30,
          "max": 50,
          "conditions": "VOUT = −10 V至+10 V,G = 10至1000,RL ≥ 600 Ω",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Gain nonlinearity, VOUT = ±5 V (BRM)",
          "symbol": "",
          "kind": "electrical",
          "unit": "ppm",
          "min": null,
          "typ": 5,
          "max": 10,
          "conditions": "VOUT = −5 V至+5 V",
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          "source": "datasheet"
        },
        {
          "name": "Gain vs temperature, G = 1 (BRM)",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": null,
          "typ": 0.1,
          "max": 1,
          "conditions": "G = 1",
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          "source": "datasheet"
        },
        {
          "name": "Input bias current reference pin, IIN (BRM)",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "µA",
          "min": 20,
          "typ": 24,
          "max": null,
          "conditions": "VIN+, VIN− = 0 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Output reference gain (BRM)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "V/V",
          "min": -0.0001,
          "typ": 1,
          "max": 0.0001,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage, single supply",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 5,
          "typ": null,
          "max": 36,
          "conditions": "单电源",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage, dual supply",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.5,
          "typ": null,
          "max": 18,
          "conditions": "双电源",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Quiescent (supply) current (BRM)",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2,
          "max": 2.3,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Quiescent (supply) current over full temperature (BRM)",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 2.6,
          "conditions": "全温度范围 TA = −40°C至+85°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Rated performance temperature range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "额定性能",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage (absolute maximum)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -18,
          "typ": null,
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