ADS7861IBRHBT

{
  "slug": "ads7861ibrhbt",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Analog To Digital Converters (ADCs), VQFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "adc-dac-data conversion",
    "ads7861ibrhbt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ads7861ibrhbt.kicad_sym",
    "ads7861ibrhbt.kicad_mod",
    "ads7861ibrhbt.glb",
    "ads7861ibrhbt.step",
    "ads7861ibrhbt.lbr",
    "docs/hero.png",
    "docs/ads7861ibrhbt-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ads7861ibrhbt-hero.glb",
    "ads7861ibrhbt-hero.overlay.json",
    "ads7861ibrhbt-etched.glb"
  ],
  "component": {
    "mpn": "ADS7861IBRHBT",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-32-EP(5x5)",
    "pin_count": 33,
    "category": "ADC/DAC/Data Conversion",
    "subcategory": "Analog To Digital Converters (ADCs)",
    "datasheet": "https://www.ti.com/lit/ds/symlink/ads7861ibrhbt.pdf",
    "parts": {
      "symbol": "ads7861ibrhbt.kicad_sym",
      "footprint": "ads7861ibrhbt.kicad_mod",
      "model_3d": "ads7861ibrhbt-hero.glb",
      "model_3d_plain": "ads7861ibrhbt-etched.glb",
      "model_3d_step": "ads7861ibrhbt-etched.step",
      "model_3d_step_plain": "ads7861ibrhbt.step",
      "lbr": "ads7861ibrhbt.lbr"
    },
    "distributor_links": {
      "lcsc": "C2871923",
      "digikey": "296-19570-2-ND",
      "mouser": "595-ADS7861IBRHBT"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T18:31:52Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-19570-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-ADS7861IBRHBT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CH B1+",
        "type": "input",
        "description": "Noninverting input of Channel B1, a fully differential input that must stay within GND - 300mV to VDD + 0.3V."
      },
      {
        "number": "2",
        "name": "CH B1–",
        "type": "input",
        "description": "Inverting input of Channel B1, part of a fully differential input pair."
      },
      {
        "number": "3",
        "name": "CH B0+",
        "type": "input",
        "description": "Noninverting input of Channel B0, a fully differential input."
      },
      {
        "number": "4",
        "name": "CH B0–",
        "type": "input",
        "description": "Inverting input of Channel B0, part of a fully differential input pair."
      },
      {
        "number": "5",
        "name": "CH A1+",
        "type": "input",
        "description": "Noninverting input of Channel A1, a fully differential input."
      },
      {
        "number": "6",
        "name": "CH A1–",
        "type": "input",
        "description": "Inverting input of Channel A1, part of a fully differential input pair."
      },
      {
        "number": "7",
        "name": "CH A0+",
        "type": "input",
        "description": "Noninverting input of Channel A0, a fully differential input."
      },
      {
        "number": "8",
        "name": "CH A0–",
        "type": "input",
        "description": "Inverting input of Channel A0, part of a fully differential input pair."
      },
      {
        "number": "9",
        "name": "REFIN",
        "type": "input",
        "description": "Reference input, with an external voltage range of 1.2V to 2.6V (2.5V typical)."
      },
      {
        "number": "10",
        "name": "REFOUT",
        "type": "output",
        "description": "2.5V internal reference output, with 2mA typical internal source current."
      },
      {
        "number": "11",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "12",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground; connect directly to digital ground (DGND, pin 28 on the QFN)."
      },
      {
        "number": "13",
        "name": "+VA",
        "type": "power_in",
        "description": "Analog power supply, +5VDC; connect directly to the digital supply and decouple to analog ground with a 0.1µF ceramic capacitor and a 10µF tantalum capacitor."
      },
      {
        "number": "14",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "15",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "16",
        "name": "M1",
        "type": "input",
        "description": "Selects the serial outputs: when LOW both Serial A and B are used, when HIGH Serial A carries both Channel A and B data and Serial B is tri-stated."
      },
      {
        "number": "17",
        "name": "M0",
        "type": "input",
        "description": "Selects two-channel (LOW, used with A0) or four-channel (HIGH, sequential conversion starting with A0 and B0) operation."
      },
      {
        "number": "18",
        "name": "A0",
        "type": "input",
        "description": "Address select that works with M0: with M0 LOW, A0 HIGH converts Channels A1 and B1, A0 LOW converts Channels A0 and B0."
      },
      {
        "number": "19",
        "name": "CONVST",
        "type": "input",
        "description": "Convert start: a LOW-to-HIGH transition switches the device from sample to hold mode independent of the external clock."
      },
      {
        "number": "20",
        "name": "RD",
        "type": "input",
        "description": "Synchronization pulse for the serial output."
      },
      {
        "number": "21",
        "name": "CS",
        "type": "input",
        "description": "Chip select: when LOW the Serial A and B outputs are active, when HIGH they are tri-stated."
      },
      {
        "number": "22",
        "name": "CLOCK",
        "type": "input",
        "description": "External CMOS-compatible clock input (0.2MHz to 8MHz) that synchronizes conversion; CLOCK = 16 • fSAMPLE."
      },
      {
        "number": "23",
        "name": "BUSY",
        "type": "output",
        "description": "Goes HIGH during a conversion and returns LOW after the third LSB has been transmitted on either serial output."
      },
      {
        "number": "24",
        "name": "SERIAL DATA A",
        "type": "tri_state",
        "description": "Serial output carrying channel information and 12 data bits, valid on the falling edge of the clock for 16 edges after the rising edge of RD; tri-stated when CS is HIGH."
      },
      {
        "number": "25",
        "name": "SERIAL DATA B",
        "type": "tri_state",
        "description": "Serial output carrying channel information and 12 data bits, valid on the falling edge of the clock for 16 edges after the rising edge of RD; tri-stated when CS is HIGH or M1 is HIGH."
      },
      {
        "number": "26",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "27",
        "name": "+VD",
        "type": "power_in",
        "description": "Digital power supply, +5VDC; connect directly to +VA and must be ≤ +VA."
      },
      {
        "number": "28",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground; connect directly to analog ground."
      },
      {
        "number": "29",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "30",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "31",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "32",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "33",
        "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: The thermal pad has no printed pin number in the datasheet. I used 'EP' as a placeholder. Check it a; The QFN NC pins (11, 14, 15, 26, 29-32) come from the pin diagram. The pin table does not list them.; The datasheet gives no explicit pin type for these pins. I classed the serial outputs as tri_state b"
        ],
        "pages_sent": 15,
        "cost_usd": 0.1941,
        "at": "2026-10-31T18:31:32"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/ads7861ibrhbt.pdf",
        "pages": 33,
        "sha256": "7dbe006fb63a78dd",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ads7861ibrhbt.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          0.875
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ads7861ibrhbt-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          0.875
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3d851e08c6c2ba92e7debd5401bd018cb9edf5f035cb1865936b3d36afdc36ff",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "RHB",
      "source_page": 30,
      "D": {
        "nom_mm": 5.0,
        "range_mm": [
          4.9,
          5.1
        ]
      },
      "E1": {
        "nom_mm": 5.0,
        "range_mm": [
          4.9,
          5.1
        ]
      },
      "e": {
        "nom_mm": 0.5,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1.0,
        "range_mm": [
          null,
          1.0
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "ads7861ibrhbt.step",
        "verdict": "PASS",
        "reasons": [
          "height within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}