component
AD7689ACPZ
Public Made by Adomby adom
Analog Devices Analog To Digital Converters (ADCs), LFCSP-20(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"description": "Analog Devices Analog To Digital Converters (ADCs), LFCSP-20(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"data converters",
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"component": {
"mpn": "AD7689ACPZ",
"manufacturer": "Analog Devices",
"package": "LFCSP-20(4x4)",
"pin_count": 21,
"category": "Data Converters",
"subcategory": "Analog To Digital Converters (ADCs)",
"datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/AD7682_7689.pdf",
"parts": {
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"lbr": "ad7689acpz.lbr"
},
"distributor_links": {
"lcsc": "C398818",
"digikey": "505-AD7689ACPZ-ND",
"mouser": "584-AD7689ACPZ"
},
"distributor_check": {
"checked_at": "2026-11-02T16:45:17Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "505-AD7689ACPZ-ND",
"status": "found"
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},
"pins": [
{
"number": "1",
"name": "VDD",
"type": "power_in",
"description": "Power supply, nominally 2.5 V to 5.5 V when using an external reference and decoupled with 10 μF and 100 nF capacitors; minimum 3.0 V with the internal 2.5 V reference and 4.5 V with the internal 4.096 V reference."
},
{
"number": "2",
"name": "REF",
"type": "bidirectional",
"description": "Reference input/output; with the internal reference enabled it produces a selectable 2.5 V or 4.096 V system reference and needs a 10 μF decoupling capacitor placed as close to REF as possible."
},
{
"number": "3",
"name": "REFIN",
"type": "bidirectional",
"description": "Internal reference output/reference buffer input; the internal reference requires 0.1 μF decoupling, and when the buffer is used the source must be between 0.5 V and (VDD − 0.5 V)."
},
{
"number": "4",
"name": "GND",
"type": "power_in",
"description": "Power supply ground."
},
{
"number": "5",
"name": "GND",
"type": "power_in",
"description": "Power supply ground."
},
{
"number": "6",
"name": "IN4",
"type": "passive",
"description": "Analog input channel 4 (AD7689)."
},
{
"number": "7",
"name": "IN5",
"type": "passive",
"description": "Analog input channel 5 (AD7689)."
},
{
"number": "8",
"name": "IN6",
"type": "passive",
"description": "Analog input channel 6 (AD7689)."
},
{
"number": "9",
"name": "IN7",
"type": "passive",
"description": "Analog input channel 7 (AD7689)."
},
{
"number": "10",
"name": "COM",
"type": "passive",
"description": "Common channel input; all input channels IN[7:0] can be referenced to a common-mode point of 0 V or VREF/2 V."
},
{
"number": "11",
"name": "CNV",
"type": "input",
"description": "Conversion input; a rising edge initiates the conversion, and if CNV is held low during conversion the busy indicator is enabled."
},
{
"number": "12",
"name": "DIN",
"type": "input",
"description": "Data input used to write the 14-bit configuration register, which can be written during and after conversion."
},
{
"number": "13",
"name": "SCK",
"type": "input",
"description": "Serial data clock input that clocks out data on SDO and clocks in data on DIN, MSB first."
},
{
"number": "14",
"name": "SDO",
"type": "output",
"description": "Serial data output carrying the conversion result synchronized to SCK; straight binary in unipolar modes and twos complement in bipolar modes."
},
{
"number": "15",
"name": "VIO",
"type": "power_in",
"description": "Input/output interface digital power, nominally at the host interface supply of 1.8 V, 2.5 V, 3 V, or 5 V."
},
{
"number": "16",
"name": "IN0",
"type": "passive",
"description": "Analog input channel 0."
},
{
"number": "17",
"name": "IN1",
"type": "passive",
"description": "Analog input channel 1 (AD7689)."
},
{
"number": "18",
"name": "IN2",
"type": "passive",
"description": "Analog input channel 2 (AD7689)."
},
{
"number": "19",
"name": "IN3",
"type": "passive",
"description": "Analog input channel 3 (AD7689)."
},
{
"number": "20",
"name": "VDD",
"type": "power_in",
"description": "Power supply, nominally 2.5 V to 5.5 V when using an external reference and decoupled with 10 μF and 100 nF capacitors; minimum 3.0 V with the internal 2.5 V reference and 4.5 V with the internal 4.096 V reference."
},
{
"number": "21",
"name": "EPAD",
"type": "unconnected",
"description": "Exposed pad, not connected internally; for increased solder joint reliability it is recommended to solder it to the system ground plane."
}
],
"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: Pin 21 (EPAD) is listed as type NC with no internal connection, so it is typed unconnected. The AD76"
],
"pages_sent": 13,
"cost_usd": 0.024,
"at": "2026-11-02T16:45:01"
},
"datasheet": {
"url": "https://www.analog.com/media/en/technical-documentation/data-sheets/AD7682_7689.pdf",
"pages": 37,
"sha256": "028312fc80ae8a4b",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 21,
"described": 21,
"cites_pages": true,
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