ADS7957SRHBR

{
  "schema_version": 1,
  "type": "component",
  "slug": "ads7957srhbr",
  "title": "ADS7957SRHBR",
  "brief": "Texas Instruments Analog To Digital Converters (ADCs), VQFN-32-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",
    "adc-dac-data conversion",
    "ads7957srhbr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ADS7957SRHBR",
    "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/ads7957srhbr.pdf",
    "parts": {
      "symbol": "ads7957srhbr.kicad_sym",
      "footprint": "ads7957srhbr.kicad_mod",
      "model_3d": "ads7957srhbr-hero.glb",
      "model_3d_plain": "ads7957srhbr-etched.glb",
      "model_3d_step": "ads7957srhbr-etched.step",
      "model_3d_step_plain": "ads7957srhbr.step",
      "lbr": "ads7957srhbr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2670416",
      "digikey": "ADS7957SRHBR-ND",
      "mouser": "595-ADS7957SRHBR"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T21:47:08Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ADS7957SRHBR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-ADS7957SRHBR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "2",
        "name": "MXO",
        "type": "output",
        "description": "Multiplexer output."
      },
      {
        "number": "3",
        "name": "AINP",
        "type": "input",
        "description": "ADC input signal."
      },
      {
        "number": "4",
        "name": "AINM",
        "type": "input",
        "description": "ADC input ground."
      },
      {
        "number": "5",
        "name": "CH15",
        "type": "input",
        "description": "Analog-input channel 15 for the multiplexer."
      },
      {
        "number": "6",
        "name": "CH14",
        "type": "input",
        "description": "Analog-input channel 14 for the multiplexer."
      },
      {
        "number": "7",
        "name": "CH13",
        "type": "input",
        "description": "Analog-input channel 13 for the multiplexer."
      },
      {
        "number": "8",
        "name": "CH12",
        "type": "input",
        "description": "Analog-input channel 12 for the multiplexer."
      },
      {
        "number": "9",
        "name": "CH11",
        "type": "input",
        "description": "Analog-input channel 11 for the multiplexer."
      },
      {
        "number": "10",
        "name": "CH10",
        "type": "input",
        "description": "Analog-input channel 10 for the multiplexer."
      },
      {
        "number": "11",
        "name": "CH9",
        "type": "input",
        "description": "Analog-input channel 9 for the multiplexer."
      },
      {
        "number": "12",
        "name": "CH8",
        "type": "input",
        "description": "Analog-input channel 8 for the multiplexer."
      },
      {
        "number": "13",
        "name": "CH7",
        "type": "input",
        "description": "Analog-input channel 7 for the multiplexer."
      },
      {
        "number": "14",
        "name": "CH6",
        "type": "input",
        "description": "Analog-input channel 6 for the multiplexer."
      },
      {
        "number": "15",
        "name": "CH5",
        "type": "input",
        "description": "Analog-input channel 5 for the multiplexer."
      },
      {
        "number": "16",
        "name": "CH4",
        "type": "input",
        "description": "Analog-input channel 4 for the multiplexer."
      },
      {
        "number": "17",
        "name": "CH3",
        "type": "input",
        "description": "Analog-input channel 3 for the multiplexer."
      },
      {
        "number": "18",
        "name": "CH2",
        "type": "input",
        "description": "Analog-input channel 2 for the multiplexer."
      },
      {
        "number": "19",
        "name": "CH1",
        "type": "input",
        "description": "Analog-input channel 1 for the multiplexer."
      },
      {
        "number": "20",
        "name": "CH0",
        "type": "input",
        "description": "Analog-input channel 0 for the multiplexer (default channel after power-up or reset)."
      },
      {
        "number": "21",
        "name": "+VA",
        "type": "power_in",
        "description": "Analog power supply, 2.7 V to 5.25 V recommended operating range."
      },
      {
        "number": "22",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "23",
        "name": "CS",
        "type": "input",
        "description": "Chip-select input, active low."
      },
      {
        "number": "24",
        "name": "SCLK",
        "type": "input",
        "description": "Serial clock input, up to 20 MHz."
      },
      {
        "number": "25",
        "name": "SDI",
        "type": "input",
        "description": "Serial data input."
      },
      {
        "number": "26",
        "name": "SDO",
        "type": "output",
        "description": "Serial data output."
      },
      {
        "number": "27",
        "name": "BDGND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "28",
        "name": "+VBD",
        "type": "power_in",
        "description": "Digital I/O supply, 1.7 V to +VA recommended operating range."
      },
      {
        "number": "29",
        "name": "GPIO0",
        "type": "bidirectional",
        "description": "Programmable general-purpose input or output that can alternatively serve as an active-high alarm output."
      },
      {
        "number": "30",
        "name": "REFM",
        "type": "input",
        "description": "Reference ground."
      },
      {
        "number": "31",
        "name": "REFP",
        "type": "input",
        "description": "Reference input; 2.5 V reference with a 10 µF ceramic decoupling capacitor to REFM."
      },
      {
        "number": "32",
        "name": "+VA",
        "type": "power_in",
        "description": "Analog power supply, 2.7 V to 5.25 V recommended operating range."
      },
      {
        "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-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The VQFN pin-function table lists four package groups per row (16-ch, 12-ch, 8-ch, 4-ch). The 12-ch ; The datasheet says NC pins must not float and should be connected to ground. Type is set to unconnec; The exposed thermal pad of the VQFN-32 (EP) package is not described in the extracted text and no th",
          "exposed pad 33 added from the footprint"
        ],
        "pages_sent": 20,
        "cost_usd": 0.1333,
        "at": "2026-10-28T21:46:50"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/ads7957srhbr.pdf",
        "pages": 80,
        "sha256": "89c0b3de229df440",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ads7957srhbr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5,
          5,
          0.875
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ads7957srhbr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5,
          5,
          0.875
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "ce574b306a695e671ab314397c30bb6062ee4e6049112344fb59dae0b703779e",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "RHB0032D",
      "source_page": 71,
      "D": {
        "nom_mm": 5,
        "range_mm": [
          4.9,
          5.1
        ]
      },
      "E1": {
        "nom_mm": 5,
        "range_mm": [
          4.9,
          5.1
        ]
      },
      "e": {
        "nom_mm": 0.5,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1,
        "range_mm": [
          null,
          1
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "ads7957srhbr.step",
        "verdict": "PASS",
        "reasons": [
          "height within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "VQFN-32-EP(5x5)",
      "Category": "ADC/DAC/Data Conversion",
      "Pins": "33"
    },
    "appearance": {
      "contacts": {
        "quote": "• A copper fill area underneath the device ties the AGND, BDGND, AINM, and REFM pins together. This",
        "page": 52,
        "doc": "ds.pdf",
        "material": "copper"
      },
      "version": 1,
      "datasheet_sha256": "89c0b3de229df4402149655c49a9d3bf46045a5d4de8d7aa2796fd6348e9c1d7"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "89c0b3de229df4402149655c49a9d3bf46045a5d4de8d7aa2796fd6348e9c1d7",
      "rows": [
        {
          "name": "AINP or CHn to AGND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "+VA to AGND, +VBD to BDGND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Digital input voltage to BDGND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Digital output to BDGND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Input current to any pin except supply pins",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature (TJ Max)",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature (Tstg)",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Analog power-supply voltage",
          "symbol": "V(+VA)",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.7,
          "typ": 3.3,
          "max": 5.25,
          "conditions": "",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Digital I/O-supply voltage",
          "symbol": "V(+VBD)",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.7,
          "typ": 3.3,
          "max": null,
          "conditions": "",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage",
          "symbol": "V(REF)",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": 2.5,
          "max": 3,
          "conditions": "",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "SCLK frequency",
          "symbol": "ƒ(SCLK)",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Full-scale input span, Range 1",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "Range 1",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Full-scale input span, Range 2",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "while 2xVREF ≤ +VA",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Absolute input range, Range 1",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": -0.2,
          "typ": null,
          "max": null,
          "conditions": "Range 1",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Absolute input range, Range 2",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": -0.2,
          "typ": null,
          "max": null,
          "conditions": "while 2xVREF ≤ +VA",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Integral linearity",
          "symbol": "",
          "kind": "electrical",
          "unit": "LSB",
          "min": -0.5,
          "typ": 0.2,
          "max": 0.5,
          "conditions": "",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Differential linearity",
          "symbol": "",
          "kind": "electrical",
          "unit": "LSB",
          "min": -0.5,
          "typ": 0.2,
          "max": 0.5,
          "conditions": "",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Offset error",
          "symbol": "",
          "kind": "electrical",
          "unit": "LSB",
          "min": -1.5,
          "typ": 0.5,
          "max": 1.5,
          "conditions": "Measured relative to an ideal full-scale input",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Gain error, Range 1",
          "symbol": "",
          "kind": "electrical",
          "unit": "LSB",
          "min": -1,
          "typ": 0.1,
          "max": 1,
          "conditions": "Range 1",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Alarm high threshold range",
          "symbol": "",
          "kind": "electrical",
          "unit": "LSB",
          "min": 0,
          "typ": null,
          "max": 4092,
          "conditions": "",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Alarm low threshold range",
          "symbol": "",
          "kind": "electrical",
          "unit": "LSB",
          "min": 0,
          "typ": null,
          "max": 4092,
          "conditions": "",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Logic low input voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "+VBD = 5 V",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "Logic low input voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "+VBD = 3 V",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "Low-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "At Isink = 200 μA",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "Analog power-supply voltage",
          "symbol": "+VA",
          "kind": "electrical",
          "unit": "V",
          "min": 2.7,
          "typ": 3.3,
          "max": 5.25,
          "conditions": "",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "Digital I/O supply voltage",
          "symbol": "+VBD",
          "kind": "electrical",
          "unit": "V",
          "min": 1.7,
          "typ": 3.3,
          "max": 5.25,
          "conditions": "",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "Supply current (normal mode), static state",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.05,
          "max": 1,
          "conditions": "At +VA = 2.7 to 3.6 V static state",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "Supply current (normal mode), 1 MHz throughput",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2.3,
          "max": 3,
          "conditions": "At +VA = 4.7 to 5.25 V and 1 MHz throughput",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "Supply current (normal mode), static state",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.1,
          "max": 1.5,
          "conditions": "At +VA = 4.7 to 5.25 V static state",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-ambient thermal resistance",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 40.6,
          "max": null,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-case (top) thermal resistance",
          "symbol": "RθJC(top)",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 32.1,
          "max": null,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-board thermal resistance",
          "symbol": "RθJB",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 13.1,
          "max": null,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-top characterization parameter",
          "symbol": "ψJT",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 0.8,
          "max": null,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-board characterization parameter",
          "symbol": "ψJB",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 13,
          "max": null,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-case (bottom) thermal resistance",
          "symbol": "RθJC(bot)",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 5.7,
          "max": null,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ads7957srhbr"
  ],
  "discovery_pitch": "ADS7957SRHBR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ads7957srhbr.kicad_sym",
    "ads7957srhbr.kicad_mod",
    "ads7957srhbr.glb",
    "ads7957srhbr.step",
    "ads7957srhbr.lbr",
    "docs/hero.png",
    "docs/ads7957srhbr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ads7957srhbr-hero.glb",
    "ads7957srhbr-hero.overlay.json",
    "ads7957srhbr-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}