MAX30003CTI+

{
  "schema_version": 1,
  "type": "component",
  "slug": "max30003cti",
  "title": "MAX30003CTI+",
  "brief": "Maxim Integrated Pre-ordered Chips, QFN-28-EP(5x5). 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",
    "interface ics",
    "max30003cti+",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "MAX30003CTI+",
    "manufacturer": "Maxim Integrated",
    "package": "QFN-28-EP(5x5)",
    "pin_count": 29,
    "category": "Interface ICs",
    "subcategory": "Pre-ordered Chips",
    "datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/MAX30003.pdf",
    "parts": {
      "symbol": "max30003cti.kicad_sym",
      "footprint": "max30003cti.kicad_mod",
      "model_3d": "max30003cti-hero.glb",
      "model_3d_plain": "max30003cti-etched.glb",
      "model_3d_step": "max30003cti-etched.step",
      "model_3d_step_plain": "max30003cti.step",
      "lbr": "max30003cti.lbr"
    },
    "distributor_links": {
      "lcsc": "C1519515",
      "digikey": "MAX30003CTI+-ND",
      "mouser": "700-MAX30003CTI+"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T06:21:59Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "MAX30003CTI+-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "700-MAX30003CTI+",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "I.C.",
        "type": "passive",
        "description": "Internally connected; connect to AGND."
      },
      {
        "number": "2",
        "name": "I.C.",
        "type": "passive",
        "description": "Internally connected; connect to AGND."
      },
      {
        "number": "3",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog power and reference ground; connect into the printed circuit board ground plane."
      },
      {
        "number": "4",
        "name": "I.C.",
        "type": "passive",
        "description": "Internally connected; connect to AGND."
      },
      {
        "number": "5",
        "name": "I.C.",
        "type": "passive",
        "description": "Internally connected; connect to AGND."
      },
      {
        "number": "6",
        "name": "ECGP",
        "type": "input",
        "description": "ECG positive input."
      },
      {
        "number": "7",
        "name": "ECGN",
        "type": "input",
        "description": "ECG negative input."
      },
      {
        "number": "8",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog power and reference ground; connect into the printed circuit board ground plane."
      },
      {
        "number": "9",
        "name": "CAPP",
        "type": "passive",
        "description": "Analog high-pass filter input; connect a 1μF X7R capacitor (CHPF) between CAPP and CAPN to form a 0.5Hz high-pass response in the ECG channel."
      },
      {
        "number": "10",
        "name": "CAPN",
        "type": "passive",
        "description": "Analog high-pass filter input; connect a 1μF X7R capacitor (CHPF) between CAPP and CAPN to form a 0.5Hz high-pass response in the ECG channel."
      },
      {
        "number": "11",
        "name": "CPLL",
        "type": "passive",
        "description": "PLL loop filter input; connect a 1nF COG capacitor between CPLL and AGND."
      },
      {
        "number": "12",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground for both digital core and I/O pad drivers; recommended to connect to the AGND plane."
      },
      {
        "number": "13",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital core supply voltage; connect to AVDD."
      },
      {
        "number": "14",
        "name": "FCLK",
        "type": "input",
        "description": "External 32.768kHz clock that controls the sampling of the internal sigma-delta converters and decimator."
      },
      {
        "number": "15",
        "name": "CSB",
        "type": "input",
        "description": "Active-low chip-select input that enables the serial interface."
      },
      {
        "number": "16",
        "name": "SCLK",
        "type": "input",
        "description": "Serial clock input that clocks data in and out of the serial interface when CSB is low."
      },
      {
        "number": "17",
        "name": "SDI",
        "type": "input",
        "description": "Serial data input, sampled into the device on the rising edge of SCLK when CSB is low."
      },
      {
        "number": "18",
        "name": "SDO",
        "type": "tri_state",
        "description": "Serial data output that changes state on the falling edge of SCLK when CSB is low and is three-stated when CSB is high."
      },
      {
        "number": "19",
        "name": "OVDD",
        "type": "power_in",
        "description": "Logic interface supply voltage."
      },
      {
        "number": "20",
        "name": "INT2B",
        "type": "output",
        "description": "Interrupt 2 output, active-low status output that can be used to interrupt an external device."
      },
      {
        "number": "21",
        "name": "INTB",
        "type": "output",
        "description": "Interrupt output, active-low status output that can be used to interrupt an external device."
      },
      {
        "number": "22",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog core supply voltage; connect to DVDD."
      },
      {
        "number": "23",
        "name": "VREF",
        "type": "power_out",
        "description": "ADC reference buffer output; connect a 10μF X5R ceramic capacitor between VREF and AGND."
      },
      {
        "number": "24",
        "name": "I.C.",
        "type": "passive",
        "description": "Internally connected; connect to AGND."
      },
      {
        "number": "25",
        "name": "VCM",
        "type": "power_out",
        "description": "Common mode buffer output; connect a 10μF X5R ceramic capacitor between VCM and AGND."
      },
      {
        "number": "26",
        "name": "I.C.",
        "type": "passive",
        "description": "Internally connected; connect to AGND."
      },
      {
        "number": "27",
        "name": "VBG",
        "type": "passive",
        "description": "Bandgap noise filter output; connect a 1.0μF X7R ceramic capacitor between VBG and AGND."
      },
      {
        "number": "28",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog power and reference ground; connect into the printed circuit board ground plane."
      },
      {
        "number": "29",
        "name": "EP",
        "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-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: I.C. pins are 'internally connected' and the datasheet says to connect them to AGND. I typed them as; The datasheet does not give an electrical direction for VREF, VCM and VBG. I inferred power_out for ; The exposed paddle has no pin number in the datasheet. It is listed as 'EP' and tied to AGND."
        ],
        "pages_sent": 7,
        "cost_usd": 0.0998,
        "at": "2026-10-31T06:21:21"
      },
      "datasheet": {
        "url": "https://www.analog.com/media/en/technical-documentation/data-sheets/MAX30003.pdf",
        "pages": 46,
        "sha256": "b582db39d36ad329",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 29,
        "described": 29,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "max30003cti.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5,
          5,
          0.92
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "e9d6d740f505b03e5aa0ac826330f9e269344b84656d051f50eb07ac162749eb",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "max30003cti-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5,
          5,
          0.92
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "a700772adff9c9239bb9f0b8a9bff84f2ec66298712645dde52915b974a4468e",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Maxim Integrated",
      "Package": "QFN-28-EP(5x5)",
      "Category": "Interface ICs",
      "Pins": "29"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "b582db39d36ad329677e2a31f28730b663aae16a2cfdd21eb272f2ee6f8cf995",
      "rows": [
        {
          "name": "AC Differential Input Range",
          "symbol": "",
          "kind": "electrical",
          "unit": "mVp-p",
          "min": -15,
          "typ": null,
          "max": 15,
          "conditions": "VAVDD = +1.1V, THD < 0.3%",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "DC Differential Input Range",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": -300,
          "typ": null,
          "max": 300,
          "conditions": "VAVDD = +1.1V, shift from nominal gain < 2%",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Common Mode Input Range",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": -150,
          "typ": null,
          "max": 150,
          "conditions": "VAVDD = +1.1V, from VMID, shift from nominal gain < 2%",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Common Mode Rejection Ratio",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 105,
          "typ": 115,
          "max": null,
          "conditions": "0W source impedance, f = 64Hz (Note 3)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Leakage Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "nA",
          "min": -1,
          "typ": 0.1,
          "max": 1,
          "conditions": "TA = +25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ECG Channel Gain Error",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": -2.5,
          "typ": null,
          "max": 2.5,
          "conditions": "VAVDD = +1.8V, GCH = 20x, ECGP = ECGN = VMID",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ECG Channel Gain Error",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": -4.5,
          "typ": null,
          "max": 4.5,
          "conditions": "VAVDD = +1.1V, GCH = 20x, ECGP = ECGN = VMID",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "CAPP to CAPN Impedance",
          "symbol": "RHPF",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 320,
          "typ": 450,
          "max": 600,
          "conditions": "FHP = 1/(2R x RHPF x CHPF)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Calibration Voltage Magnitude Error",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "Single-ended (Note 9)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VREF Output Voltage",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 0.995,
          "typ": 1,
          "max": 1.005,
          "conditions": "TA = +25°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "External VREF Compensation Capacitor",
          "symbol": "CREF",
          "kind": "recommended_operating",
          "unit": "µF",
          "min": 1,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "External VCM Compensation Capacitor",
          "symbol": "CCM",
          "kind": "recommended_operating",
          "unit": "µF",
          "min": 1,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input-Voltage High",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "xVOVDD",
          "min": 0.7,
          "typ": null,
          "max": null,
          "conditions": "SDI, SCLK, CSB, FCLK",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input-Voltage Low",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "xVOVDD",
          "min": null,
          "typ": null,
          "max": 0.3,
          "conditions": "SDI, SCLK, CSB, FCLK",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input Current",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "µA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Low",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "ISINK = 1mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Three-State Leakage Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Analog Supply Voltage",
          "symbol": "VAVDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.1,
          "typ": null,
          "max": 2,
          "conditions": "Connect VAVDD to VDVDD",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Digital Supply Voltage",
          "symbol": "VDVDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.1,
          "typ": null,
          "max": 2,
          "conditions": "Connect VDVDD to VAVDD",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Interface Supply Voltage",
          "symbol": "VOVDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.65,
          "typ": null,
          "max": 3.6,
          "conditions": "Power for I/O drivers only",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply Current, ECG channel",
          "symbol": "IAVDD + IDVDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 109,
          "max": 120,
          "conditions": "VAVDD = VDVDD = +2.0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply Current, ULP Lead On Detect",
          "symbol": "IAVDD + IDVDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.73,
          "max": 2.5,
          "conditions": "TA = +25°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Interface Supply Current",
          "symbol": "IOVDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.6,
          "max": 1.6,
          "conditions": "VOVDD = +3.6V, ECG channel at 512sps (Note 10)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Shutdown Current",
          "symbol": "ISAVDD + ISDVDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.51,
          "max": 2.5,
          "conditions": "VAVDD = VDVDD = 2.0V, TA = +25°C (Note 5)",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "SCLK Frequency",
          "symbol": "fSCLK",
          "kind": "timing",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 12,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "SCLK Period",
          "symbol": "tCP",
          "kind": "timing",
          "unit": "ns",
          "min": 83,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "SCLK Pulse Width High",
          "symbol": "tCH",
          "kind": "timing",
          "unit": "ns",
          "min": 15,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "SCLK Pulse Width Low",
          "symbol": "tCL",
          "kind": "timing",
          "unit": "ns",
          "min": 15,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "CSB Fall to SCLK Rise Setup Time",
          "symbol": "tCSS0",
          "kind": "timing",
          "unit": "ns",
          "min": 15,
          "typ": null,
          "max": null,
          "conditions": "To 1st SCLK rising edge (RE)",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "CSB Fall to SCLK Rise Hold Time",
          "symbol": "tCSH0",
          "kind": "timing",
          "unit": "ns",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "Applies to inactive RE preceding 1st RE",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "CSB Rise to SCLK Rise Hold Time",
          "symbol": "tCSH1",
          "kind": "timing",
          "unit": "ns",
          "min": 10,
          "typ": null,
          "max": null,
          "conditions": "Applies to 32nd RE, executed write",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "CSB Rise to SCLK Rise",
          "symbol": "tCSA",
          "kind": "timing",
          "unit": "ns",
          "min": 15,
          "typ": null,
          "max": null,
          "conditions": "Applies to 32nd RE, aborted write sequence",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "SCLK Rise to CSB Fall",
          "symbol": "tCSF",
          "kind": "timing",
          "unit": "ns",
          "min": 100,
          "typ": null,
          "max": null,
          "conditions": "Applies to 32nd RE",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "CSB Pulse-Width High",
          "symbol": "tCSPW",
          "kind": "timing",
          "unit": "ns",
          "min": 20,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "SDI-to-SCLK Rise Setup Time",
          "symbol": "tDS",
          "kind": "timing",
          "unit": "ns",
          "min": 8,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "SDI to SCLK Rise Hold Time",
          "symbol": "tDH",
          "kind": "timing",
          "unit": "ns",
          "min": 8,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "SCLK Fall to SDO Transition",
          "symbol": "tDOT",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "CLOAD = 20pf",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "SCLK Fall to SDO Hold",
          "symbol": "tDOH",
          "kind": "timing",
          "unit": "ns",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "CLOAD = 20pf",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "CSB Fall to SDO Fall",
          "symbol": "tDOE",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "Enable time, CLOAD = 20pf",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "CSB Rise to SDO Hi-Z",
          "symbol": "tDOZ",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 35,
          "conditions": "Disable time",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "AVDD to AGND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
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