ADS1258IRTCT

{
  "slug": "ads1258irtct",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Analog To Digital Converters (ADC), VQFN-48-EP(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
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    "data acquisition",
    "ads1258irtct",
    "factory-2.0.0",
    "extractor-text"
  ],
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    "ads1258irtct.step",
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  "component": {
    "mpn": "ADS1258IRTCT",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-48-EP(7x7)",
    "pin_count": 49,
    "category": "Data Acquisition",
    "subcategory": "Analog To Digital Converters (ADC)",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ads1258",
    "parts": {
      "symbol": "ads1258irtct.kicad_sym",
      "footprint": "ads1258irtct.kicad_mod",
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      "lbr": "ads1258irtct.lbr"
    },
    "distributor_links": {
      "lcsc": 2669850,
      "digikey": "296-18674-2-ND",
      "mouser": "595-ADS1258IRTCT"
    },
    "distributor_check": {
      "checked_at": "2026-10-03T07:41:07Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-18674-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-ADS1258IRTCT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "AIN3",
        "type": "input",
        "description": "Analog input 3 for single-ended channel 3 or differential channel 1 (-)."
      },
      {
        "number": "2",
        "name": "AIN2",
        "type": "input",
        "description": "Analog input 2 for single-ended channel 2 or differential channel 1 (+)."
      },
      {
        "number": "3",
        "name": "AIN1",
        "type": "input",
        "description": "Analog input 1 for single-ended channel 1 or differential channel 0 (-)."
      },
      {
        "number": "4",
        "name": "AIN0",
        "type": "input",
        "description": "Analog input 0 for single-ended channel 0 or differential channel 0 (+)."
      },
      {
        "number": "5",
        "name": "AVSS",
        "type": "power_in",
        "description": "Negative analog power supply: 0V for unipolar operation or -2.5V for bipolar operation; internally connected to exposed thermal pad."
      },
      {
        "number": "6",
        "name": "AVDD",
        "type": "power_in",
        "description": "Positive analog power supply: +5V for unipolar operation or +2.5V for bipolar operation."
      },
      {
        "number": "7",
        "name": "PLLCAP",
        "type": "passive",
        "description": "PLL bypass capacitor connection point; connect 22nF capacitor to AVSS when using crystal oscillator."
      },
      {
        "number": "8",
        "name": "XTAL1",
        "type": "passive",
        "description": "32.768kHz crystal oscillator input terminal 1."
      },
      {
        "number": "9",
        "name": "XTAL2",
        "type": "passive",
        "description": "32.768kHz crystal oscillator input terminal 2."
      },
      {
        "number": "10",
        "name": "PWDN",
        "type": "input",
        "description": "Power-down input; hold low for minimum of two fCLK cycles to engage low-power mode."
      },
      {
        "number": "11",
        "name": "RESET",
        "type": "input",
        "description": "Reset input; hold low for minimum of two fCLK cycles to reset the device."
      },
      {
        "number": "12",
        "name": "CLKSEL",
        "type": "input",
        "description": "Clock source select input; low activates crystal oscillator with clock output on CLKIO, high disables oscillator and applies external fCLK to CLKIO."
      },
      {
        "number": "13",
        "name": "CLKIO",
        "type": "bidirectional",
        "description": "System clock input/output; serves as output when CLKSEL is low (crystal oscillator mode) or input when CLKSEL is high (external clock mode)."
      },
      {
        "number": "14",
        "name": "GPIO0",
        "type": "bidirectional",
        "description": "General-purpose digital input/output 0; programmable as input or output via register settings."
      },
      {
        "number": "15",
        "name": "GPIO1",
        "type": "bidirectional",
        "description": "General-purpose digital input/output 1; programmable as input or output via register settings."
      },
      {
        "number": "16",
        "name": "GPIO2",
        "type": "bidirectional",
        "description": "General-purpose digital input/output 2; programmable as input or output via register settings."
      },
      {
        "number": "17",
        "name": "GPIO3",
        "type": "bidirectional",
        "description": "General-purpose digital input/output 3; programmable as input or output via register settings."
      },
      {
        "number": "18",
        "name": "GPIO4",
        "type": "bidirectional",
        "description": "General-purpose digital input/output 4; programmable as input or output via register settings."
      },
      {
        "number": "19",
        "name": "GPIO5",
        "type": "bidirectional",
        "description": "General-purpose digital input/output 5; programmable as input or output via register settings."
      },
      {
        "number": "20",
        "name": "GPIO6",
        "type": "bidirectional",
        "description": "General-purpose digital input/output 6; programmable as input or output via register settings."
      },
      {
        "number": "21",
        "name": "GPIO7",
        "type": "bidirectional",
        "description": "General-purpose digital input/output 7; programmable as input or output via register settings."
      },
      {
        "number": "22",
        "name": "SCLK",
        "type": "input",
        "description": "SPI clock input; data clocked in on rising edge and clocked out on falling edge."
      },
      {
        "number": "23",
        "name": "DIN",
        "type": "input",
        "description": "SPI data input; serial data is input to the device via this pin."
      },
      {
        "number": "24",
        "name": "DOUT",
        "type": "output",
        "description": "SPI data output; serial data is output from the device; tri-states high when CS is inactive."
      },
      {
        "number": "25",
        "name": "DRDY",
        "type": "output",
        "description": "Data ready output; active low when new conversion data is available."
      },
      {
        "number": "26",
        "name": "START",
        "type": "input",
        "description": "Start conversion input; active high to initiate analog-to-digital conversion."
      },
      {
        "number": "27",
        "name": "CS",
        "type": "input",
        "description": "SPI chip select input; active low to enable SPI communication, can be tied low for continuous operation."
      },
      {
        "number": "28",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital power supply; operates at 2.7V to 5.25V."
      },
      {
        "number": "29",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground connection."
      },
      {
        "number": "30",
        "name": "VREFN",
        "type": "input",
        "description": "Reference input negative; recommend 10μF tantalum with 0.1μF ceramic capacitor across reference pins for rated performance."
      },
      {
        "number": "31",
        "name": "VREFP",
        "type": "input",
        "description": "Reference input positive; recommend 10μF tantalum with 0.1μF ceramic capacitor across reference pins for rated performance."
      },
      {
        "number": "32",
        "name": "AINCOM",
        "type": "input",
        "description": "Analog input common; common reference point connected to all single-ended analog inputs."
      },
      {
        "number": "33",
        "name": "AIN15",
        "type": "input",
        "description": "Analog input 15 for single-ended channel 15 or differential channel 7 (-)."
      },
      {
        "number": "34",
        "name": "AIN14",
        "type": "input",
        "description": "Analog input 14 for single-ended channel 14 or differential channel 7 (+)."
      },
      {
        "number": "35",
        "name": "AIN13",
        "type": "input",
        "description": "Analog input 13 for single-ended channel 13 or differential channel 6 (-)."
      },
      {
        "number": "36",
        "name": "AIN12",
        "type": "input",
        "description": "Analog input 12 for single-ended channel 12 or differential channel 6 (+)."
      },
      {
        "number": "37",
        "name": "AIN11",
        "type": "input",
        "description": "Analog input 11 for single-ended channel 11 or differential channel 5 (-)."
      },
      {
        "number": "38",
        "name": "AIN10",
        "type": "input",
        "description": "Analog input 10 for single-ended channel 10 or differential channel 5 (+)."
      },
      {
        "number": "39",
        "name": "AIN9",
        "type": "input",
        "description": "Analog input 9 for single-ended channel 9 or differential channel 4 (-)."
      },
      {
        "number": "40",
        "name": "AIN8",
        "type": "input",
        "description": "Analog input 8 for single-ended channel 8 or differential channel 4 (+)."
      },
      {
        "number": "41",
        "name": "ADCINN",
        "type": "input",
        "description": "ADC differential input negative; part of external multiplexer output signal conditioning path."
      },
      {
        "number": "42",
        "name": "ADCINP",
        "type": "input",
        "description": "ADC differential input positive; part of external multiplexer output signal conditioning path."
      },
      {
        "number": "43",
        "name": "MUXOUTN",
        "type": "output",
        "description": "Multiplexer differential output negative; accessible for external signal conditioning prior to ADC input."
      },
      {
        "number": "44",
        "name": "MUXOUTP",
        "type": "output",
        "description": "Multiplexer differential output positive; accessible for external signal conditioning prior to ADC input."
      },
      {
        "number": "45",
        "name": "AIN7",
        "type": "input",
        "description": "Analog input 7 for single-ended channel 7 or differential channel 3 (-)."
      },
      {
        "number": "46",
        "name": "AIN6",
        "type": "input",
        "description": "Analog input 6 for single-ended channel 6 or differential channel 3 (+)."
      },
      {
        "number": "47",
        "name": "AIN5",
        "type": "input",
        "description": "Analog input 5 for single-ended channel 5 or differential channel 2 (-)."
      },
      {
        "number": "48",
        "name": "AIN4",
        "type": "input",
        "description": "Analog input 4 for single-ended channel 4 or differential channel 2 (+)."
      },
      {
        "number": "49",
        "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-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "exposed pad 49 added from the footprint"
        ],
        "pages_sent": 15,
        "cost_usd": 0.1792,
        "at": "2026-10-03T07:40:40"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ads1258",
        "pages": 55,
        "sha256": "469eda615665f3b4",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 49,
        "described": 49,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
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}