ADS8686SIPZAR

{
  "slug": "ads8686sipzar",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Analog To Digital Converters (ADC), LQFP-80(14x14). Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "data acquisition",
    "ads8686sipzar",
    "factory-2.0.0",
    "extractor-text"
  ],
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    "ads8686sipzar.step",
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  "component": {
    "mpn": "ADS8686SIPZAR",
    "manufacturer": "Texas Instruments",
    "package": "LQFP-80(14x14)",
    "pin_count": 80,
    "category": "Data Acquisition",
    "subcategory": "Analog To Digital Converters (ADC)",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ads8686s",
    "parts": {
      "symbol": "ads8686sipzar.kicad_sym",
      "footprint": "ads8686sipzar.kicad_mod",
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    "distributor_links": {
      "lcsc": "C1512994"
    },
    "pins": [
      {
        "number": "1",
        "name": "AIN_4BGND",
        "type": "input",
        "description": "Analog input channel 4B negative input; 0.3V differential range to AIN_4B"
      },
      {
        "number": "2",
        "name": "AIN_4B",
        "type": "input",
        "description": "Analog input channel 4B positive input; accepts ±10V, ±5V, or ±2.5V bipolar signals"
      },
      {
        "number": "3",
        "name": "AIN_5BGND",
        "type": "input",
        "description": "Analog input channel 5B negative input; 0.3V differential range to AIN_5B"
      },
      {
        "number": "4",
        "name": "AIN_5B",
        "type": "input",
        "description": "Analog input channel 5B positive input; accepts ±10V, ±5V, or ±2.5V bipolar signals"
      },
      {
        "number": "5",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground pin; connect all AGND pins to analog ground plane"
      },
      {
        "number": "6",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog power pin 4.75V to 5.25V; connect to nearest AGND with 10µF and 0.1µF decoupling capacitors"
      },
      {
        "number": "7",
        "name": "AIN_6B",
        "type": "input",
        "description": "Analog input channel 6B positive input; accepts ±10V, ±5V, or ±2.5V bipolar signals"
      },
      {
        "number": "8",
        "name": "AIN_6BGND",
        "type": "input",
        "description": "Analog input channel 6B negative input; 0.3V differential range to AIN_6B"
      },
      {
        "number": "9",
        "name": "AIN_7B",
        "type": "input",
        "description": "Analog input channel 7B positive input; accepts ±10V, ±5V, or ±2.5V bipolar signals"
      },
      {
        "number": "10",
        "name": "AIN_7BGND",
        "type": "input",
        "description": "Analog input channel 7B negative input; 0.3V differential range to AIN_7B"
      },
      {
        "number": "11",
        "name": "AIN_7AGND",
        "type": "input",
        "description": "Analog input channel 7A negative input; 0.3V differential range to AIN_7A"
      },
      {
        "number": "12",
        "name": "AIN_7A",
        "type": "input",
        "description": "Analog input channel 7A positive input; accepts ±10V, ±5V, or ±2.5V bipolar signals"
      },
      {
        "number": "13",
        "name": "AIN_6AGND",
        "type": "input",
        "description": "Analog input channel 6A negative input; 0.3V differential range to AIN_6A"
      },
      {
        "number": "14",
        "name": "AIN_6A",
        "type": "input",
        "description": "Analog input channel 6A positive input; accepts ±10V, ±5V, or ±2.5V bipolar signals"
      },
      {
        "number": "15",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog power pin 4.75V to 5.25V; connect to nearest AGND with 10µF and 0.1µF decoupling capacitors"
      },
      {
        "number": "16",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground pin; connect all AGND pins to analog ground plane"
      },
      {
        "number": "17",
        "name": "AIN_5A",
        "type": "input",
        "description": "Analog input channel 5A positive input; accepts ±10V, ±5V, or ±2.5V bipolar signals"
      },
      {
        "number": "18",
        "name": "AIN_5AGND",
        "type": "input",
        "description": "Analog input channel 5A negative input; 0.3V differential range to AIN_5A"
      },
      {
        "number": "19",
        "name": "AIN_4A",
        "type": "input",
        "description": "Analog input channel 4A positive input; accepts ±10V, ±5V, or ±2.5V bipolar signals"
      },
      {
        "number": "20",
        "name": "AIN_4AGND",
        "type": "input",
        "description": "Analog input channel 4A negative input; 0.3V differential range to AIN_4A"
      },
      {
        "number": "21",
        "name": "AIN_3AGND",
        "type": "input",
        "description": "Analog input channel 3A negative input; 0.3V differential range to AIN_3A"
      },
      {
        "number": "22",
        "name": "AIN_3A",
        "type": "input",
        "description": "Analog input channel 3A positive input; accepts ±10V, ±5V, or ±2.5V bipolar signals"
      },
      {
        "number": "23",
        "name": "AIN_2AGND",
        "type": "input",
        "description": "Analog input channel 2A negative input; 0.3V differential range to AIN_2A"
      },
      {
        "number": "24",
        "name": "AIN_2A",
        "type": "input",
        "description": "Analog input channel 2A positive input; accepts ±10V, ±5V, or ±2.5V bipolar signals"
      },
      {
        "number": "25",
        "name": "AIN_1AGND",
        "type": "input",
        "description": "Analog input channel 1A negative input; 0.3V differential range to AIN_1A"
      },
      {
        "number": "26",
        "name": "AIN_1A",
        "type": "input",
        "description": "Analog input channel 1A positive input; accepts ±10V, ±5V, or ±2.5V bipolar signals"
      },
      {
        "number": "27",
        "name": "AIN_0AGND",
        "type": "input",
        "description": "Analog input channel 0A negative input; 0.3V differential range to AIN_0A"
      },
      {
        "number": "28",
        "name": "AIN_0A",
        "type": "input",
        "description": "Analog input channel 0A positive input; accepts ±10V, ±5V, or ±2.5V bipolar signals"
      },
      {
        "number": "29",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground pin; connect all AGND pins to analog ground plane"
      },
      {
        "number": "30",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog power pin 4.75V to 5.25V; connect to nearest AGND with 10µF and 0.1µF decoupling capacitors"
      },
      {
        "number": "31",
        "name": "REFCAP",
        "type": "power_out",
        "description": "Reference amplifier output pin; decoupled with 10µF low ESR ceramic capacitor to REFGND near the pin"
      },
      {
        "number": "32",
        "name": "REFGND",
        "type": "power_in",
        "description": "Reference ground pin; connect to AGND plane with shortest trace"
      },
      {
        "number": "33",
        "name": "REFIO",
        "type": "bidirectional",
        "description": "Internal 2.5V reference output when REFSEL high; external reference input when REFSEL low; decoupled with 0.1µF to REFIO_GND"
      },
      {
        "number": "34",
        "name": "REFIO_GND",
        "type": "power_in",
        "description": "REFIO ground pin; connect to AGND plane with shortest trace"
      },
      {
        "number": "35",
        "name": "REFSEL",
        "type": "input",
        "description": "Active high logic input to enable internal reference; state latched at RESET release"
      },
      {
        "number": "36",
        "name": "RESET",
        "type": "input",
        "description": "Active low logic input for device digital logic reset; pulse duration determines partial or full reset"
      },
      {
        "number": "37",
        "name": "SEQEN",
        "type": "input",
        "description": "Active high logic input to enable channel sequencer in hardware mode; state latched at RESET release"
      },
      {
        "number": "38",
        "name": "HW_RNGSEL1",
        "type": "input",
        "description": "Hardware and software mode selection input; state latched at full reset for analog input range selection"
      },
      {
        "number": "39",
        "name": "HW_RNGSEL0",
        "type": "input",
        "description": "Hardware and software mode selection input; state latched at full reset for analog input range selection"
      },
      {
        "number": "40",
        "name": "SER/BYTE/PAR",
        "type": "input",
        "description": "Logic input for interface mode selection between serial, parallel byte, or parallel modes; state latched at full reset"
      },
      {
        "number": "41",
        "name": "DB0",
        "type": "tri_state",
        "description": "Data bus bit 0 (LSB) in parallel/byte modes; must connect to DGND in serial mode"
      },
      {
        "number": "42",
        "name": "DB1",
        "type": "tri_state",
        "description": "Data bus bit 1 in parallel/byte modes; must connect to DGND in serial mode"
      },
      {
        "number": "43",
        "name": "DB2",
        "type": "tri_state",
        "description": "Data bus bit 2 in parallel/byte modes; must connect to DGND in serial mode"
      },
      {
        "number": "44",
        "name": "DB3",
        "type": "tri_state",
        "description": "Data bus bit 3 in parallel/byte modes; must connect to DGND in serial mode"
      },
      {
        "number": "45",
        "name": "DB4/SER1W",
        "type": "tri_state",
        "description": "Multifunctional pin: DB4 data in parallel/byte modes or serial 1-wire/2-wire mode selection; state latched at full reset"
      },
      {
        "number": "46",
        "name": "DB5/CRCEN",
        "type": "tri_state",
        "description": "Multifunctional pin: DB5 data in parallel/byte modes or CRC enable in serial mode; state latched at full reset"
      },
      {
        "number": "47",
        "name": "DB6",
        "type": "tri_state",
        "description": "Data bus bit 6 in parallel/byte modes; must connect to DGND in serial mode"
      },
      {
        "number": "48",
        "name": "DB7",
        "type": "tri_state",
        "description": "Data bus bit 7 in parallel/byte modes; must connect to DGND in serial mode"
      },
      {
        "number": "49",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital power pin 1.71V to AVDD; decoupled with minimum 0.1µF capacitor to DGND at pin 50"
      },
      {
        "number": "50",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground pin; connect to digital ground plane"
      },
      {
        "number": "51",
        "name": "REGGNDD",
        "type": "power_in",
        "description": "Internal digital regulator ground pin; connect to DGND plane with shortest trace"
      },
      {
        "number": "52",
        "name": "REGCAPD",
        "type": "power_out",
        "description": "Internal digital regulator voltage output; decoupled with 10µF ceramic capacitor to REGGNDD near the pin"
      },
      {
        "number": "53",
        "name": "DB8",
        "type": "tri_state",
        "description": "Multifunctional pin: DB8 data in parallel mode; must connect to DGND in byte/serial modes"
      },
      {
        "number": "54",
        "name": "DB9/BYTESEL",
        "type": "tri_state",
        "description": "Multifunctional pin: DB9 data in parallel modes or parallel byte interface enable; state latched at full reset"
      },
      {
        "number": "55",
        "name": "DB10/SDI",
        "type": "tri_state",
        "description": "Multifunctional pin: DB10 data in parallel modes or serial data input in software serial mode"
      },
      {
        "number": "56",
        "name": "DB11/SDOB",
        "type": "tri_state",
        "description": "Multifunctional pin: DB11 data in parallel modes or serial data output B when enabled; must connect to DGND in byte mode"
      },
      {
        "number": "57",
        "name": "DB12/SDOA",
        "type": "tri_state",
        "description": "Multifunctional pin: DB12 data in parallel modes or serial data output A in serial mode"
      },
      {
        "number": "58",
        "name": "DB13/OS0",
        "type": "tri_state",
        "description": "Multifunctional pin: DB13 data in parallel modes or oversampling rate bit 0 in hardware serial mode"
      },
      {
        "number": "59",
        "name": "DB14/OS1",
        "type": "tri_state",
        "description": "Multifunctional pin: DB14 data in parallel modes or oversampling rate bit 1 in hardware serial mode"
      },
      {
        "number": "60",
        "name": "DB15/OS2",
        "type": "tri_state",
        "description": "Multifunctional pin: DB15 data (MSB) in parallel modes or oversampling rate bit 2 in hardware serial mode"
      },
      {
        "number": "61",
        "name": "WR/BURST",
        "type": "input",
        "description": "Multifunctional logic input: write control in software parallel/byte modes or burst mode enable in hardware mode"
      },
      {
        "number": "62",
        "name": "SCLK/RD",
        "type": "input",
        "description": "Multifunctional logic input: serial clock in serial mode or read control in parallel/byte modes; enables output bus when low with CS"
      },
      {
        "number": "63",
        "name": "CS",
        "type": "input",
        "description": "Active low chip select logic input; controls three-state output drivers on data lines"
      },
      {
        "number": "64",
        "name": "CHSEL0",
        "type": "input",
        "description": "Logic input for channel selection or hardware sequencer programming; read during CONVST or reset"
      },
      {
        "number": "65",
        "name": "CHSEL1",
        "type": "input",
        "description": "Logic input for channel selection or hardware sequencer programming; read during CONVST or reset"
      },
      {
        "number": "66",
        "name": "CHSEL2",
        "type": "input",
        "description": "Logic input for channel selection or hardware sequencer programming; read during CONVST or reset"
      },
      {
        "number": "67",
        "name": "BUSY",
        "type": "output",
        "description": "Logic output indicating ongoing analog-to-digital conversion; high during conversion, low when complete"
      },
      {
        "number": "68",
        "name": "CONVST",
        "type": "input",
        "description": "Logic input to initiate conversion of selected channels when BUSY is low; rising edge triggers start of conversion"
      },
      {
        "number": "69",
        "name": "REGGND",
        "type": "power_in",
        "description": "Internal analog regulator ground pin; connect to AGND plane with shortest trace"
      },
      {
        "number": "70",
        "name": "REGCAP",
        "type": "power_out",
        "description": "Internal analog regulator voltage output; decoupled with 10µF ceramic capacitor to REGGND near the pin"
      },
      {
        "number": "71",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog power pin 4.75V to 5.25V; connect to nearest AGND with 10µF and 0.1µF decoupling capacitors"
      },
      {
        "number": "72",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground pin; connect all AGND pins to analog ground plane"
      },
      {
        "number": "73",
        "name": "AIN_0B",
        "type": "input",
        "description": "Analog input channel 0B positive input; accepts ±10V, ±5V, or ±2.5V bipolar signals"
      },
      {
        "number": "74",
        "name": "AIN_0BGND",
        "type": "input",
        "description": "Analog input channel 0B negative input; 0.3V differential range to AIN_0B"
      },
      {
        "number": "75",
        "name": "AIN_1B",
        "type": "input",
        "description": "Analog input channel 1B positive input; accepts ±10V, ±5V, or ±2.5V bipolar signals"
      },
      {
        "number": "76",
        "name": "AIN_1BGND",
        "type": "input",
        "description": "Analog input channel 1B negative input; 0.3V differential range to AIN_1B"
      },
      {
        "number": "77",
        "name": "AIN_2B",
        "type": "input",
        "description": "Analog input channel 2B positive input; accepts ±10V, ±5V, or ±2.5V bipolar signals"
      },
      {
        "number": "78",
        "name": "AIN_2BGND",
        "type": "input",
        "description": "Analog input channel 2B negative input; 0.3V differential range to AIN_2B"
      },
      {
        "number": "79",
        "name": "AIN_3B",
        "type": "input",
        "description": "Analog input channel 3B positive input; accepts ±10V, ±5V, or ±2.5V bipolar signals"
      },
      {
        "number": "80",
        "name": "AIN_3BGND",
        "type": "input",
        "description": "Analog input channel 3B negative input; 0.3V differential range to AIN_3B"
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "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": [
          "extractor flagged: DB pins (DB0-DB15) and special function pins (DB4/SER1W, DB5/CRCEN, DB9/BYTESEL, DB10/SDI, DB11/SDOB; SCLK/RD pin (62) functions as serial clock input in serial mode or parallel read control in parallel; WR/BURST pin (61) has dual function: write control in software parallel/byte modes or burst mode ena"
        ],
        "pages_sent": 117,
        "cost_usd": 1.3871,
        "at": "2026-09-23T19:42:19"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ads8686s",
        "pages": 117,
        "sha256": "ed56e671a196fe1f",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 80,
        "described": 80,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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