component
AD9257BCPZ-40
Public Made by Adomby adom
Analog Devices Analog To Digital Converters (ADC), LFCSP-64(9x9). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "ad9257bcpz-40",
"title": "AD9257BCPZ-40",
"brief": "Analog Devices Analog To Digital Converters (ADC), LFCSP-64(9x9). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"data acquisition",
"ad9257bcpz-40",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "AD9257BCPZ-40",
"manufacturer": "Analog Devices",
"package": "LFCSP-64(9x9)",
"pin_count": 65,
"category": "Data Acquisition",
"subcategory": "Analog To Digital Converters (ADC)",
"datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/AD9257.pdf",
"parts": {
"symbol": "ad9257bcpz-40.kicad_sym",
"footprint": "ad9257bcpz-40.kicad_mod",
"model_3d": "ad9257bcpz-40-hero.glb",
"model_3d_plain": "ad9257bcpz-40-etched.glb",
"model_3d_step": "ad9257bcpz-40-etched.step",
"model_3d_step_plain": "ad9257bcpz-40.step",
"lbr": "ad9257bcpz-40.lbr"
},
"distributor_links": {
"lcsc": "C578834",
"digikey": "505-AD9257BCPZ-40-ND",
"mouser": "584-AD9257BCPZ-40"
},
"distributor_check": {
"checked_at": "2026-10-30T22:40:30Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "505-AD9257BCPZ-40-ND",
"status": "found"
},
"mouser": {
"pn": "584-AD9257BCPZ-40",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "AVDD",
"type": "power_in",
"description": "1.8 V analog supply."
},
{
"number": "2",
"name": "VIN+ G",
"type": "power_in",
"description": "ADC G analog input true."
},
{
"number": "3",
"name": "VIN- G",
"type": "power_in",
"description": "ADC G analog input complement."
},
{
"number": "4",
"name": "AVDD",
"type": "power_in",
"description": "1.8 V analog supply."
},
{
"number": "5",
"name": "VIN- H",
"type": "power_in",
"description": "ADC H analog input complement."
},
{
"number": "6",
"name": "VIN+ H",
"type": "power_in",
"description": "ADC H analog input true."
},
{
"number": "7",
"name": "AVDD",
"type": "power_in",
"description": "1.8 V analog supply."
},
{
"number": "8",
"name": "AVDD",
"type": "power_in",
"description": "1.8 V analog supply."
},
{
"number": "9",
"name": "CLK-",
"type": "input",
"description": "Input clock complement; accepts LVPECL, CMOS or LVDS sample clock."
},
{
"number": "10",
"name": "CLK+",
"type": "input",
"description": "Input clock true; accepts LVPECL, CMOS or LVDS sample clock."
},
{
"number": "11",
"name": "AVDD",
"type": "power_in",
"description": "1.8 V analog supply."
},
{
"number": "12",
"name": "AVDD",
"type": "power_in",
"description": "1.8 V analog supply."
},
{
"number": "13",
"name": "DNC",
"type": "unconnected",
"description": "Do not connect; do not connect to this pin."
},
{
"number": "14",
"name": "DRVDD",
"type": "power_in",
"description": "1.8 V digital output driver supply."
},
{
"number": "15",
"name": "D- H",
"type": "output",
"description": "ADC H digital output complement (LVDS serial data)."
},
{
"number": "16",
"name": "D+ H",
"type": "output",
"description": "ADC H digital output true (LVDS serial data)."
},
{
"number": "17",
"name": "D- G",
"type": "output",
"description": "ADC G digital output complement (LVDS serial data)."
},
{
"number": "18",
"name": "D+ G",
"type": "output",
"description": "ADC G digital output true (LVDS serial data)."
},
{
"number": "19",
"name": "D- F",
"type": "output",
"description": "ADC F digital output complement (LVDS serial data)."
},
{
"number": "20",
"name": "D+ F",
"type": "output",
"description": "ADC F digital output true (LVDS serial data)."
},
{
"number": "21",
"name": "D- E",
"type": "output",
"description": "ADC E digital output complement (LVDS serial data)."
},
{
"number": "22",
"name": "D+ E",
"type": "output",
"description": "ADC E digital output true (LVDS serial data)."
},
{
"number": "23",
"name": "DCO-",
"type": "output",
"description": "Data clock output complement used for capturing data on the outputs."
},
{
"number": "24",
"name": "DCO+",
"type": "output",
"description": "Data clock output true used for capturing data on the outputs."
},
{
"number": "25",
"name": "FCO-",
"type": "output",
"description": "Frame clock output complement signaling a new output byte."
},
{
"number": "26",
"name": "FCO+",
"type": "output",
"description": "Frame clock output true signaling a new output byte."
},
{
"number": "27",
"name": "D- D",
"type": "output",
"description": "ADC D digital output complement (LVDS serial data)."
},
{
"number": "28",
"name": "D+ D",
"type": "output",
"description": "ADC D digital output true (LVDS serial data)."
},
{
"number": "29",
"name": "D- C",
"type": "output",
"description": "ADC C digital output complement (LVDS serial data)."
},
{
"number": "30",
"name": "D+ C",
"type": "output",
"description": "ADC C digital output true (LVDS serial data)."
},
{
"number": "31",
"name": "D- B",
"type": "output",
"description": "ADC B digital output complement (LVDS serial data)."
},
{
"number": "32",
"name": "D+ B",
"type": "output",
"description": "ADC B digital output true (LVDS serial data)."
},
{
"number": "33",
"name": "D- A",
"type": "output",
"description": "ADC A digital output complement (LVDS serial data)."
},
{
"number": "34",
"name": "D+ A",
"type": "output",
"description": "ADC A digital output true (LVDS serial data)."
},
{
"number": "35",
"name": "DRVDD",
"type": "power_in",
"description": "1.8 V digital output driver supply."
},
{
"number": "36",
"name": "DNC",
"type": "unconnected",
"description": "Do not connect; do not connect to this pin."
},
{
"number": "37",
"name": "AVDD",
"type": "power_in",
"description": "1.8 V analog supply."
},
{
"number": "38",
"name": "SCLK/DTP",
"type": "input",
"description": "SPI serial clock, or digital test pattern control when SPI is not used."
},
{
"number": "39",
"name": "SDIO/DFS",
"type": "bidirectional",
"description": "SPI serial data input/output, or data format select when SPI is not used."
},
{
"number": "40",
"name": "CSB",
"type": "input",
"description": "SPI chip select bar, active low; tie to AVDD to disable the serial port."
},
{
"number": "41",
"name": "PDWN",
"type": "input",
"description": "Power-down control pin."
},
{
"number": "42",
"name": "AVDD",
"type": "power_in",
"description": "1.8 V analog supply."
},
{
"number": "43",
"name": "VIN+ A",
"type": "power_in",
"description": "ADC A analog input true."
},
{
"number": "44",
"name": "VIN- A",
"type": "power_in",
"description": "ADC A analog input complement."
},
{
"number": "45",
"name": "AVDD",
"type": "power_in",
"description": "1.8 V analog supply."
},
{
"number": "46",
"name": "VIN- B",
"type": "power_in",
"description": "ADC B analog input complement."
},
{
"number": "47",
"name": "VIN+ B",
"type": "power_in",
"description": "ADC B analog input true."
},
{
"number": "48",
"name": "AVDD",
"type": "power_in",
"description": "1.8 V analog supply."
},
{
"number": "49",
"name": "VIN+ C",
"type": "power_in",
"description": "ADC C analog input true."
},
{
"number": "50",
"name": "VIN- C",
"type": "power_in",
"description": "ADC C analog input complement."
},
{
"number": "51",
"name": "AVDD",
"type": "power_in",
"description": "1.8 V analog supply."
},
{
"number": "52",
"name": "VIN- D",
"type": "power_in",
"description": "ADC D analog input complement."
},
{
"number": "53",
"name": "VIN+ D",
"type": "power_in",
"description": "ADC D analog input true."
},
{
"number": "54",
"name": "RBIAS",
"type": "passive",
"description": "Sets analog current bias; connect to a 10 kΩ (1% tolerance) resistor to ground."
},
{
"number": "55",
"name": "SENSE",
"type": "input",
"description": "Reference mode selection."
},
{
"number": "56",
"name": "VREF",
"type": "power_in",
"description": "Voltage reference input/output."
},
{
"number": "57",
"name": "VCM",
"type": "output",
"description": "Analog output voltage at midsupply that sets the common mode of the analog inputs."
},
{
"number": "58",
"name": "SYNC",
"type": "input",
"description": "Digital input to the clock divider with a 30 kΩ internal pull-down."
},
{
"number": "59",
"name": "AVDD",
"type": "power_in",
"description": "1.8 V analog supply."
},
{
"number": "60",
"name": "VIN+ E",
"type": "power_in",
"description": "ADC E analog input true."
},
{
"number": "61",
"name": "VIN- E",
"type": "power_in",
"description": "ADC E analog input complement."
},
{
"number": "62",
"name": "AVDD",
"type": "power_in",
"description": "1.8 V analog supply."
},
{
"number": "63",
"name": "VIN- F",
"type": "power_in",
"description": "ADC F analog input complement."
},
{
"number": "64",
"name": "VIN+ F",
"type": "power_in",
"description": "ADC F analog input true."
},
{
"number": "65",
"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-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Pinout taken from Table 8 and Figure 5 for the 64-lead LFCSP 9x9 mm exposed-pad package, which appli"
],
"pages_sent": 16,
"cost_usd": 0.0497,
"at": "2026-10-30T22:40:15"
},
"datasheet": {
"url": "https://www.analog.com/media/en/technical-documentation/data-sheets/AD9257.pdf",
"pages": 38,
"sha256": "2faa91212f13cdb5",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 65,
"described": 65,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "ad9257bcpz-40.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9,
9,
0.75
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "dce07a86ec3fe3ca87eebdff13827f55e036ced5518fee01f85cec4a3f56366d",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "ad9257bcpz-40-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9,
9,
0.75
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "c2599498e60a4e905de0734e50feaa0ac2b6588a504b67b0ec181cb2842bffcb",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Analog Devices",
"Package": "LFCSP-64(9x9)",
"Category": "Data Acquisition",
"Pins": "65"
},
"appearance": {
"contacts": {
"quote": "Pin 0. The copper plane should have several vias to achieve the",
"page": 37,
"doc": "ds.pdf",
"material": "copper"
},
"version": 1,
"datasheet_sha256": "2faa91212f13cdb55a1cde65ae4fdb9255896fc319d829e28197c6ed4de2374e"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "2faa91212f13cdb55a1cde65ae4fdb9255896fc319d829e28197c6ed4de2374e",
"rows": [
{
"name": "Offset Error",
"symbol": "",
"kind": "electrical",
"unit": "% FSR",
"min": -0.6,
"typ": -0.3,
"max": 0.1,
"conditions": "Full",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Offset Matching",
"symbol": "",
"kind": "electrical",
"unit": "% FSR",
"min": 0,
"typ": 0.2,
"max": 0.6,
"conditions": "Full",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Gain Error",
"symbol": "",
"kind": "electrical",
"unit": "% FSR",
"min": -6,
"typ": -2.1,
"max": 2,
"conditions": "Full",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Gain Matching",
"symbol": "",
"kind": "electrical",
"unit": "% FSR",
"min": -1,
"typ": 1.7,
"max": 5,
"conditions": "Full",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Differential Nonlinearity (DNL)",
"symbol": "DNL",
"kind": "electrical",
"unit": "LSB",
"min": -1,
"typ": null,
"max": 1.7,
"conditions": "Full; typ printed as -0.5/+0.8",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Integral Nonlinearity (INL)",
"symbol": "INL",
"kind": "electrical",
"unit": "LSB",
"min": -3.1,
"typ": 1.1,
"max": 3.1,
"conditions": "Full",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Offset Error Temperature Drift",
"symbol": "",
"kind": "temperature_coefficient",
"unit": "ppm/°C",
"min": -2,
"typ": null,
"max": 2,
"conditions": "Full",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Internal Voltage Reference Output Voltage (1 V Mode)",
"symbol": "VREF",
"kind": "electrical",
"unit": "V",
"min": 0.98,
"typ": 0.99,
"max": 1.01,
"conditions": "Full",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Load Regulation at 1.0 mA (VREF = 1 V)",
"symbol": "",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 2,
"max": null,
"conditions": "Full",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Input Resistance (VREF)",
"symbol": "",
"kind": "electrical",
"unit": "kΩ",
"min": null,
"typ": 7.5,
"max": null,
"conditions": "Full",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Differential Input Voltage (VREF = 1 V)",
"symbol": "",
"kind": "electrical",
"unit": "V p-p",
"min": null,
"typ": 2,
"max": null,
"conditions": "Full",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Common-Mode Voltage",
"symbol": "",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.9,
"max": null,
"conditions": "Full",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Common-Mode Range",
"symbol": "",
"kind": "electrical",
"unit": "V",
"min": 0.5,
"typ": null,
"max": 1.3,
"conditions": "Full",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Differential Input Resistance",
"symbol": "",
"kind": "electrical",
"unit": "kΩ",
"min": null,
"typ": 5.2,
"max": null,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Differential Input Capacitance",
"symbol": "",
"kind": "electrical",
"unit": "pF",
"min": null,
"typ": 3.5,
"max": null,
"conditions": "Full",
"source_page": 3,
"source": "datasheet"
},
{
"name": "AVDD Supply Voltage",
"symbol": "AVDD",
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