ADS1258IRTCR

{
  "slug": "ads1258irtcr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Analog To Digital Converters (ADC), VQFN-48-EP(7x7). Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "data acquisition",
    "ads1258irtcr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
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  "component": {
    "mpn": "ADS1258IRTCR",
    "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": {
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    "distributor_links": {
      "lcsc": "C527439"
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    "pins": [
      {
        "number": "1",
        "name": "AIN3",
        "type": "input",
        "description": "Analog Input 3: Single-Ended Channel 3 or Differential Channel 1 (-), accepts input signals from AVSS - 100mV to AVDD + 100mV."
      },
      {
        "number": "2",
        "name": "AIN2",
        "type": "input",
        "description": "Analog Input 2: Single-Ended Channel 2 or Differential Channel 1 (+), accepts input signals from AVSS - 100mV to AVDD + 100mV."
      },
      {
        "number": "3",
        "name": "AIN1",
        "type": "input",
        "description": "Analog Input 1: Single-Ended Channel 1 or Differential Channel 0 (-), accepts input signals from AVSS - 100mV to AVDD + 100mV."
      },
      {
        "number": "4",
        "name": "AIN0",
        "type": "input",
        "description": "Analog Input 0: Single-Ended Channel 0 or Differential Channel 0 (+), accepts input signals from AVSS - 100mV to AVDD + 100mV."
      },
      {
        "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 of QFN package."
      },
      {
        "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: connect 22nF capacitor to AVSS when using crystal oscillator."
      },
      {
        "number": "8",
        "name": "XTAL1",
        "type": "bidirectional",
        "description": "32.768kHz Crystal Oscillator Input 1; connect parallel resonant crystal (CL = 12.5pF, ESR ≤ 35kΩ) for system clock generation."
      },
      {
        "number": "9",
        "name": "XTAL2",
        "type": "bidirectional",
        "description": "32.768kHz Crystal Oscillator Input 2; connect parallel resonant crystal (CL = 12.5pF, ESR ≤ 35kΩ) for system clock generation."
      },
      {
        "number": "10",
        "name": "PWDN",
        "type": "input",
        "description": "Power-Down Input: hold low for minimum of two fCLK cycles to engage low-power mode with all internal circuitry disabled."
      },
      {
        "number": "11",
        "name": "RESET",
        "type": "input",
        "description": "Reset Input: hold low for minimum of two fCLK cycles to reset device and clear digital filter."
      },
      {
        "number": "12",
        "name": "CLKSEL",
        "type": "input",
        "description": "Clock Select Input: low activates crystal oscillator with fCLK output on CLKIO, high disables oscillator and requires fCLK (16MHz typical) applied to CLKIO."
      },
      {
        "number": "13",
        "name": "CLKIO",
        "type": "bidirectional",
        "description": "System Clock Input/Output: accepts external clock 0.1-16MHz (duty cycle 40-60%) when CLKSEL=1, or outputs 15.729MHz clock when CLKSEL=0."
      },
      {
        "number": "14",
        "name": "GPIO0",
        "type": "bidirectional",
        "description": "General-Purpose Digital Input/Output 0: individually configurable as input or output via GPIOC register bit 0, level controlled via GPIOD register."
      },
      {
        "number": "15",
        "name": "GPIO1",
        "type": "bidirectional",
        "description": "General-Purpose Digital Input/Output 1: individually configurable as input or output via GPIOC register bit 1, level controlled via GPIOD register."
      },
      {
        "number": "16",
        "name": "GPIO2",
        "type": "bidirectional",
        "description": "General-Purpose Digital Input/Output 2: individually configurable as input or output via GPIOC register bit 2, level controlled via GPIOD register."
      },
      {
        "number": "17",
        "name": "GPIO3",
        "type": "bidirectional",
        "description": "General-Purpose Digital Input/Output 3: individually configurable as input or output via GPIOC register bit 3, level controlled via GPIOD register."
      },
      {
        "number": "18",
        "name": "GPIO4",
        "type": "bidirectional",
        "description": "General-Purpose Digital Input/Output 4: individually configurable as input or output via GPIOC register bit 4, level controlled via GPIOD register."
      },
      {
        "number": "19",
        "name": "GPIO5",
        "type": "bidirectional",
        "description": "General-Purpose Digital Input/Output 5: individually configurable as input or output via GPIOC register bit 5, level controlled via GPIOD register."
      },
      {
        "number": "20",
        "name": "GPIO6",
        "type": "bidirectional",
        "description": "General-Purpose Digital Input/Output 6: individually configurable as input or output via GPIOC register bit 6, level controlled via GPIOD register."
      },
      {
        "number": "21",
        "name": "GPIO7",
        "type": "bidirectional",
        "description": "General-Purpose Digital Input/Output 7: individually configurable as input or output via GPIOC register bit 7, level controlled via GPIOD register."
      },
      {
        "number": "22",
        "name": "SCLK",
        "type": "input",
        "description": "SPI Interface Clock Input: data clocked in on rising edge and clocked out on falling edge, input frequency 0.1-16MHz with duty cycle 40-60%."
      },
      {
        "number": "23",
        "name": "DIN",
        "type": "input",
        "description": "SPI Interface Data Input: serial data is input to device on rising edge of SCLK."
      },
      {
        "number": "24",
        "name": "DOUT",
        "type": "output",
        "description": "SPI Interface Data Output: serial data is output from device on falling edge of SCLK, tri-states when CS=1."
      },
      {
        "number": "25",
        "name": "DRDY",
        "type": "output",
        "description": "Data Ready Output: active low output asserts when new channel data is available, returns high after first falling edge of SCLK during data read."
      },
      {
        "number": "26",
        "name": "START",
        "type": "input",
        "description": "Start Conversion Input: active high input that starts conversion when high and stops conversion when low (device completes current conversion)."
      },
      {
        "number": "27",
        "name": "CS",
        "type": "input",
        "description": "SPI Interface Chip Select Input: active low input that selects device for serial communication, aborts operations and resets SPI interface when high."
      },
      {
        "number": "28",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital Power Supply: 2.7V to 5.25V, requires 10µF tantalum bypassed with 0.1µF ceramic capacitor close to pins."
      },
      {
        "number": "29",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital Ground: return path for digital supply current."
      },
      {
        "number": "30",
        "name": "VREFN",
        "type": "input",
        "description": "Reference Input Negative: accepts reference voltage from AVSS - 0.1V to VREFP - 0.5V with input impedance 40kΩ."
      },
      {
        "number": "31",
        "name": "VREFP",
        "type": "input",
        "description": "Reference Input Positive: accepts reference voltage from VREFN + 0.5V to AVDD + 0.1V with input impedance 40kΩ."
      },
      {
        "number": "32",
        "name": "AINCOM",
        "type": "input",
        "description": "Analog Input Common: common reference input for all single-ended measurements, can be set from AVSS - 100mV to AVDD + 100mV."
      },
      {
        "number": "33",
        "name": "AIN15",
        "type": "input",
        "description": "Analog Input 15: Single-Ended Channel 15 or Differential Channel 7 (-), accepts input signals from AVSS - 100mV to AVDD + 100mV."
      },
      {
        "number": "34",
        "name": "AIN14",
        "type": "input",
        "description": "Analog Input 14: Single-Ended Channel 14 or Differential Channel 7 (+), accepts input signals from AVSS - 100mV to AVDD + 100mV."
      },
      {
        "number": "35",
        "name": "AIN13",
        "type": "input",
        "description": "Analog Input 13: Single-Ended Channel 13 or Differential Channel 6 (-), accepts input signals from AVSS - 100mV to AVDD + 100mV."
      },
      {
        "number": "36",
        "name": "AIN12",
        "type": "input",
        "description": "Analog Input 12: Single-Ended Channel 12 or Differential Channel 6 (+), accepts input signals from AVSS - 100mV to AVDD + 100mV."
      },
      {
        "number": "37",
        "name": "AIN11",
        "type": "input",
        "description": "Analog Input 11: Single-Ended Channel 11 or Differential Channel 5 (-), accepts input signals from AVSS - 100mV to AVDD + 100mV."
      },
      {
        "number": "38",
        "name": "AIN10",
        "type": "input",
        "description": "Analog Input 10: Single-Ended Channel 10 or Differential Channel 5 (+), accepts input signals from AVSS - 100mV to AVDD + 100mV."
      },
      {
        "number": "39",
        "name": "AIN9",
        "type": "input",
        "description": "Analog Input 9: Single-Ended Channel 9 or Differential Channel 4 (-), accepts input signals from AVSS - 100mV to AVDD + 100mV."
      },
      {
        "number": "40",
        "name": "AIN8",
        "type": "input",
        "description": "Analog Input 8: Single-Ended Channel 8 or Differential Channel 4 (+), accepts input signals from AVSS - 100mV to AVDD + 100mV."
      },
      {
        "number": "41",
        "name": "ADCINN",
        "type": "input",
        "description": "ADC Differential Input (-): negative ADC input accepts signals from external multiplexer loop or internal connection, voltage limited to AVSS - 100mV to AVDD + 100mV."
      },
      {
        "number": "42",
        "name": "ADCINP",
        "type": "input",
        "description": "ADC Differential Input (+): positive ADC input accepts signals from external multiplexer loop or internal connection, voltage limited to AVSS - 100mV to AVDD + 100mV."
      },
      {
        "number": "43",
        "name": "MUXOUTN",
        "type": "output",
        "description": "Multiplexer Differential Output (-): negative output of input multiplexer for external signal conditioning, accessible for buffering or filtering."
      },
      {
        "number": "44",
        "name": "MUXOUTP",
        "type": "output",
        "description": "Multiplexer Differential Output (+): positive output of input multiplexer for external signal conditioning, accessible for buffering or filtering."
      },
      {
        "number": "45",
        "name": "AIN7",
        "type": "input",
        "description": "Analog Input 7: Single-Ended Channel 7 or Differential Channel 3 (-), accepts input signals from AVSS - 100mV to AVDD + 100mV."
      },
      {
        "number": "46",
        "name": "AIN6",
        "type": "input",
        "description": "Analog Input 6: Single-Ended Channel 6 or Differential Channel 3 (+), accepts input signals from AVSS - 100mV to AVDD + 100mV."
      },
      {
        "number": "47",
        "name": "AIN5",
        "type": "input",
        "description": "Analog Input 5: Single-Ended Channel 5 or Differential Channel 2 (-), accepts input signals from AVSS - 100mV to AVDD + 100mV."
      },
      {
        "number": "48",
        "name": "AIN4",
        "type": "input",
        "description": "Analog Input 4: Single-Ended Channel 4 or Differential Channel 2 (+), accepts input signals from AVSS - 100mV to AVDD + 100mV."
      },
      {
        "number": "49",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
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        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "exposed pad 49 added from the footprint"
        ],
        "pages_sent": 55,
        "cost_usd": 0.6413,
        "at": "2026-09-23T00:20:10"
      },
      "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,
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        "refuses_to_fabricate": true
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}