AD7656YSTZ-1

{
  "schema_version": 1,
  "type": "component",
  "slug": "ad7656ystz-1",
  "title": "AD7656YSTZ-1",
  "brief": "Analog Devices Analog To Digital Converters (ADCs), LQFP-64(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "data converters",
    "ad7656ystz-1",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "AD7656YSTZ-1",
    "manufacturer": "Analog Devices",
    "package": "LQFP-64(10x10)",
    "pin_count": 64,
    "category": "Data Converters",
    "subcategory": "Analog To Digital Converters (ADCs)",
    "datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/AD7656-1_7657-1_7658-1.pdf",
    "parts": {
      "symbol": "ad7656ystz-1.kicad_sym",
      "footprint": "ad7656ystz-1.kicad_mod",
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      "model_3d_step": "ad7656ystz-1-etched.step",
      "model_3d_step_plain": "ad7656ystz-1.step",
      "lbr": "ad7656ystz-1.lbr"
    },
    "distributor_links": {
      "lcsc": "C651337",
      "digikey": "505-AD7656YSTZ-1-ND",
      "mouser": "584-AD7656YSTZ-1"
    },
    "distributor_check": {
      "checked_at": "2026-11-02T16:59:52Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "505-AD7656YSTZ-1-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "584-AD7656YSTZ-1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "DB14/REFBUFEN/DIS",
        "type": "bidirectional",
        "description": "Data bit 14 in parallel mode is a three-state digital I/O, and in serial mode it enables or disables the internal reference buffers."
      },
      {
        "number": "2",
        "name": "DB13",
        "type": "bidirectional",
        "description": "Data bit 13 is a three-state parallel I/O that must be tied to DGND when the serial interface is selected."
      },
      {
        "number": "3",
        "name": "DB12",
        "type": "bidirectional",
        "description": "Data bit 12 is a three-state parallel I/O that must be tied to DGND when the serial interface is selected."
      },
      {
        "number": "4",
        "name": "DB11",
        "type": "bidirectional",
        "description": "Data bit 11 is a three-state parallel I/O, and in serial mode it must be tied to DGND."
      },
      {
        "number": "5",
        "name": "DB10/DOUT C",
        "type": "bidirectional",
        "description": "Data bit 10 is a three-state parallel I/O, and in serial mode it outputs serial conversion data DOUT C when SEL C = 1."
      },
      {
        "number": "6",
        "name": "DB9/DOUT B",
        "type": "bidirectional",
        "description": "Data bit 9 is a three-state parallel I/O, and in serial mode it outputs serial conversion data DOUT B when SEL B = 1."
      },
      {
        "number": "7",
        "name": "DB8/DOUT A",
        "type": "bidirectional",
        "description": "Data bit 8 is a three-state parallel I/O, and in serial mode it outputs serial conversion data DOUT A when SEL A = 1."
      },
      {
        "number": "8",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground is the reference point for all digital circuitry and must be within 0.3 V of AGND, even on a transient basis."
      },
      {
        "number": "9",
        "name": "VDRIVE",
        "type": "power_in",
        "description": "Logic power supply input sets the interface operating voltage, specified at 2.7 V to 5.25 V, and must not exceed DVCC + 0.3 V."
      },
      {
        "number": "10",
        "name": "DB7/HBEN/DCEN",
        "type": "bidirectional",
        "description": "Data bit 7 in word mode, HBEN in byte mode, or DCEN in serial mode, where logic high enables daisy-chain operation."
      },
      {
        "number": "11",
        "name": "DB6/SCLK",
        "type": "bidirectional",
        "description": "Data bit 6 in parallel mode, and in serial mode it is the read serial clock SCLK input."
      },
      {
        "number": "12",
        "name": "DB5/DCIN A",
        "type": "bidirectional",
        "description": "Data bit 5 in parallel mode, and in serial daisy-chain mode it is the Daisy-Chain Input A; tie to DGND if daisy-chain is unused."
      },
      {
        "number": "13",
        "name": "DB4/DCIN B",
        "type": "bidirectional",
        "description": "Data bit 4 in parallel mode, and in serial daisy-chain mode it is the Daisy-Chain Input B; tie to DGND if daisy-chain is unused."
      },
      {
        "number": "14",
        "name": "DB3/DCIN C",
        "type": "bidirectional",
        "description": "Data bit 3 in parallel mode, and in serial daisy-chain mode it is the Daisy-Chain Input C; tie to DGND if daisy-chain is unused."
      },
      {
        "number": "15",
        "name": "DB2/SEL C",
        "type": "bidirectional",
        "description": "Data bit 2 in parallel mode, and in serial mode it selects whether DOUT C is enabled as a serial output."
      },
      {
        "number": "16",
        "name": "DB1/SEL B",
        "type": "bidirectional",
        "description": "Data bit 1 in parallel mode, and in serial mode it selects whether DOUT B is enabled as a serial output; must be 1 for the serial interface."
      },
      {
        "number": "17",
        "name": "DB0/SEL A",
        "type": "bidirectional",
        "description": "Data bit 0 in parallel mode, and in serial mode it must be set to 1 to enable DOUT A as a serial output."
      },
      {
        "number": "18",
        "name": "BUSY",
        "type": "output",
        "description": "Busy output goes high when a conversion starts and stays high until the data is latched, and CONVST edges are ignored while it is high."
      },
      {
        "number": "19",
        "name": "CS",
        "type": "input",
        "description": "Active-low chip select frames the data transfer, enabling the parallel output bus with RD or writing the control register with WR."
      },
      {
        "number": "20",
        "name": "RD",
        "type": "input",
        "description": "Active-low read data enables the parallel output bus when CS is also low; it must be held low in serial mode."
      },
      {
        "number": "21",
        "name": "CONVST C",
        "type": "input",
        "description": "Conversion start input C initiates simultaneous conversions on V5 and V6 on a low-to-high edge."
      },
      {
        "number": "22",
        "name": "CONVST B",
        "type": "input",
        "description": "Conversion start input B initiates simultaneous conversions on V3 and V4 on a low-to-high edge."
      },
      {
        "number": "23",
        "name": "CONVST A",
        "type": "input",
        "description": "Conversion start input A initiates simultaneous conversions on V1 and V2 on a low-to-high edge."
      },
      {
        "number": "24",
        "name": "STBY",
        "type": "input",
        "description": "Standby mode input puts all six ADCs into standby when low and is high for normal operation."
      },
      {
        "number": "25",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground is the reference point for all digital circuitry and must be within 0.3 V of AGND, even on a transient basis."
      },
      {
        "number": "26",
        "name": "DVCC",
        "type": "power_in",
        "description": "Digital power supply is specified at 4.75 V to 5.25 V and must be within 0.3 V of AVCC, even on a transient basis."
      },
      {
        "number": "27",
        "name": "RANGE",
        "type": "input",
        "description": "Analog input range select sets ±2 × VREF when high and ±4 × VREF when low, sampled on the falling edge of BUSY in hardware mode."
      },
      {
        "number": "28",
        "name": "RESET",
        "type": "input",
        "description": "Reset input resets the device when high, requiring a roughly 100 ns pulse after power-up before the first conversion."
      },
      {
        "number": "29",
        "name": "W/B",
        "type": "input",
        "description": "Word/byte input selects 16-bit word transfers when low and byte transfers when high in parallel mode; tie to DGND in serial mode."
      },
      {
        "number": "30",
        "name": "VSS",
        "type": "power_in",
        "description": "Negative analog input supply, specified as −10 V to −16.5 V for the ±4 × VREF range and −5 V to −16.5 V for the ±2 × VREF range."
      },
      {
        "number": "31",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive analog input supply, specified as 10 V to 16.5 V for the ±4 × VREF range and 5 V to 16.5 V for the ±2 × VREF range."
      },
      {
        "number": "32",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground is the reference point for all analog circuitry and must be within 0.3 V of DGND."
      },
      {
        "number": "33",
        "name": "V1",
        "type": "input",
        "description": "Analog input 1 is a single-ended bipolar input whose range is set by the RANGE pin or RNGC to RNGA control bits."
      },
      {
        "number": "34",
        "name": "AVCC",
        "type": "power_in",
        "description": "Analog supply for the ADC cores is specified at 4.75 V to 5.25 V and must be within 0.3 V of DVCC."
      },
      {
        "number": "35",
        "name": "AVCC",
        "type": "power_in",
        "description": "Analog supply for the ADC cores is specified at 4.75 V to 5.25 V and must be within 0.3 V of DVCC."
      },
      {
        "number": "36",
        "name": "V2",
        "type": "input",
        "description": "Analog input 2 is a single-ended bipolar input whose range is set by the RANGE pin or RNGC to RNGA control bits."
      },
      {
        "number": "37",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground is the reference point for all analog circuitry and must be within 0.3 V of DGND."
      },
      {
        "number": "38",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground is the reference point for all analog circuitry and must be within 0.3 V of DGND."
      },
      {
        "number": "39",
        "name": "V3",
        "type": "input",
        "description": "Analog input 3 is a single-ended bipolar input whose range is set by the RANGE pin or RNGC to RNGA control bits."
      },
      {
        "number": "40",
        "name": "AVCC",
        "type": "power_in",
        "description": "Analog supply for the ADC cores is specified at 4.75 V to 5.25 V and must be within 0.3 V of DVCC."
      },
      {
        "number": "41",
        "name": "AVCC",
        "type": "power_in",
        "description": "Analog supply for the ADC cores is specified at 4.75 V to 5.25 V and must be within 0.3 V of DVCC."
      },
      {
        "number": "42",
        "name": "V4",
        "type": "input",
        "description": "Analog input 4 is a single-ended bipolar input whose range is set by the RANGE pin or RNGC to RNGA control bits."
      },
      {
        "number": "43",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground is the reference point for all analog circuitry and must be within 0.3 V of DGND."
      },
      {
        "number": "44",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground is the reference point for all analog circuitry and must be within 0.3 V of DGND."
      },
      {
        "number": "45",
        "name": "V5",
        "type": "input",
        "description": "Analog input 5 is a single-ended bipolar input whose range is set by the RANGE pin or RNGC to RNGA control bits."
      },
      {
        "number": "46",
        "name": "AVCC",
        "type": "power_in",
        "description": "Analog supply for the ADC cores is specified at 4.75 V to 5.25 V and must be within 0.3 V of DVCC."
      },
      {
        "number": "47",
        "name": "AVCC",
        "type": "power_in",
        "description": "Analog supply for the ADC cores is specified at 4.75 V to 5.25 V and must be within 0.3 V of DVCC."
      },
      {
        "number": "48",
        "name": "V6",
        "type": "input",
        "description": "Analog input 6 is a single-ended bipolar input whose range is set by the RANGE pin or RNGC to RNGA control bits."
      },
      {
        "number": "49",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground is the reference point for all analog circuitry and must be within 0.3 V of DGND."
      },
      {
        "number": "50",
        "name": "AVCC",
        "type": "power_in",
        "description": "Analog supply for the ADC cores is specified at 4.75 V to 5.25 V and must be within 0.3 V of DVCC."
      },
      {
        "number": "51",
        "name": "REFIN/REFOUT",
        "type": "bidirectional",
        "description": "Reference input/output carries the on-chip 2.5 V reference, which can be disabled to accept an external reference and must be decoupled with at least 1 µF when enabled."
      },
      {
        "number": "52",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground is the reference point for all analog circuitry and must be within 0.3 V of DGND."
      },
      {
        "number": "53",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground is the reference point for all analog circuitry and must be within 0.3 V of DGND."
      },
      {
        "number": "54",
        "name": "REFCAPA",
        "type": "passive",
        "description": "Reference capacitor A decouples the reference buffer for ADC pair A and must be decoupled to AGND with a 1 µF capacitor."
      },
      {
        "number": "55",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground is the reference point for all analog circuitry and must be within 0.3 V of DGND."
      },
      {
        "number": "56",
        "name": "REFCAPB",
        "type": "passive",
        "description": "Reference capacitor B decouples the reference buffer for ADC pair B and must be decoupled to AGND with a 1 µF capacitor."
      },
      {
        "number": "57",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground is the reference point for all analog circuitry and must be within 0.3 V of DGND."
      },
      {
        "number": "58",
        "name": "REFCAPC",
        "type": "passive",
        "description": "Reference capacitor C decouples the reference buffer for ADC pair C and must be decoupled to AGND with a 1 µF capacitor."
      },
      {
        "number": "59",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground is the reference point for all analog circuitry and must be within 0.3 V of DGND."
      },
      {
        "number": "60",
        "name": "AVCC",
        "type": "power_in",
        "description": "Analog supply for the ADC cores is specified at 4.75 V to 5.25 V and must be within 0.3 V of DVCC."
      },
      {
        "number": "61",
        "name": "SER/PAR SEL",
        "type": "input",
        "description": "Serial/parallel select input chooses the parallel interface when low and the serial interface when high."
      },
      {
        "number": "62",
        "name": "H/S SEL",
        "type": "input",
        "description": "Hardware/software select input uses CONVST pins to select ADC pairs when low and the control register when high."
      },
      {
        "number": "63",
        "name": "WR/REFEN/DIS",
        "type": "input",
        "description": "Write data/reference enable input writes DB[15:8] to the control register with CS and WR low in software mode, and enables or disables the internal reference in hardware mode."
      },
      {
        "number": "64",
        "name": "DB15",
        "type": "bidirectional",
        "description": "Data bit 15 is a three-state parallel I/O that must be tied to DGND when the serial interface is selected, and carries a leading 0 on the AD7657-1 and AD7658-1 only in its variant-specific data format."
      }
    ],
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        "at": "2026-11-02T16:59:32"
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  "metadata": {
    "specs": {
      "Manufacturer": "Analog Devices",
      "Package": "LQFP-64(10x10)",
      "Category": "Data Converters",
      "Pins": "64"
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    "characteristics": {
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        {
          "name": "Reference Temperature Coefficient",
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          "symbol": "VOL",
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