component
ADS1281IPWR
Public Made by Adomby adom
Texas Instruments Analog To Digital Converters (ADC), TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "ads1281ipwr",
"title": "ADS1281IPWR",
"brief": "Texas Instruments Analog To Digital Converters (ADC), TSSOP-24. 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",
"ads1281ipwr",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "ADS1281IPWR",
"manufacturer": "Texas Instruments",
"package": "TSSOP-24",
"pin_count": 24,
"category": "Data Acquisition",
"subcategory": "Analog To Digital Converters (ADC)",
"datasheet": "https://www.ti.com/cn/lit/gpn/ads1281",
"parts": {
"symbol": "ads1281ipwr.kicad_sym",
"footprint": "ads1281ipwr.kicad_mod",
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"model_3d_plain": "ads1281ipwr.glb",
"model_3d_step": "ads1281ipwr-etched.step",
"model_3d_step_plain": "ads1281ipwr.step",
"lbr": "ads1281ipwr.lbr"
},
"distributor_links": {
"lcsc": "C2670771",
"digikey": "296-22915-2-ND",
"mouser": "595-ADS1281IPWR"
},
"distributor_check": {
"checked_at": "2026-10-11T14:50:41Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-22915-2-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "595-ADS1281IPWR",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "CLK",
"type": "input",
"description": "Master clock input; the ADS1281 requires a clock input for operation and the data conversion rate scales directly with the CLK frequency."
},
{
"number": "2",
"name": "SCLK",
"type": "input",
"description": "SPI serial clock input used to clock data on DIN and DOUT."
},
{
"number": "3",
"name": "DRDY",
"type": "output",
"description": "Data ready output; read the data on its falling edge."
},
{
"number": "4",
"name": "DOUT",
"type": "output",
"description": "SPI serial data output."
},
{
"number": "5",
"name": "MOD/DIN",
"type": "input",
"description": "In register mode this is the SPI serial data input (DIN); in pin mode it is the MOD input that selects the modulator mode (0 = digital filter mode, 1 = filter bypass, modulator output)."
},
{
"number": "6",
"name": "DGND",
"type": "power_in",
"description": "Digital ground."
},
{
"number": "7",
"name": "PHS/MCLK",
"type": "bidirectional",
"description": "In pin mode with MOD = 0 it is the PHS input selecting linear phase (0) or minimum phase (1) filter; with MOD = 1, or in register mode, it is the MCLK modulator clock output."
},
{
"number": "8",
"name": "DR1/M1",
"type": "bidirectional",
"description": "In pin mode with MOD = 0 it is the DR1 data rate select input; with MOD = 1, or in register mode, it is the M1 modulator data output 1."
},
{
"number": "9",
"name": "DR0/M0",
"type": "bidirectional",
"description": "In pin mode with MOD = 0 it is the DR0 data rate select input; with MOD = 1, or in register mode, it is the M0 modulator data output 0."
},
{
"number": "10",
"name": "HPF/SYNC",
"type": "input",
"description": "In pin mode it is the HPF input (0 = high-pass filter off, 1 = HPF on); in register mode it is the SYNC input."
},
{
"number": "11",
"name": "MFLAG",
"type": "output",
"description": "Modulator over-range flag: 0 = normal, 1 = modulator over-range."
},
{
"number": "12",
"name": "DGND",
"type": "power_in",
"description": "Digital ground; pin 12 is the key ground point."
},
{
"number": "13",
"name": "AINP",
"type": "input",
"description": "Positive analog input; the input must stay within AVSS - 300 mV to AVDD + 300 mV to keep the ESD diodes off."
},
{
"number": "14",
"name": "AINN",
"type": "input",
"description": "Negative analog input; the input must stay within AVSS - 300 mV to AVDD + 300 mV to keep the ESD diodes off."
},
{
"number": "15",
"name": "AVDD",
"type": "power_in",
"description": "Positive analog power supply (AVDD - AVSS is specified at 4.75 V to 5.25 V)."
},
{
"number": "16",
"name": "AVSS",
"type": "power_in",
"description": "Negative analog power supply (AVSS is specified at -2.6 V to 0 V)."
},
{
"number": "17",
"name": "VREFN",
"type": "input",
"description": "Negative reference input; VREFN must be within AVSS - 0.1 V to VREFP - 0.5 V."
},
{
"number": "18",
"name": "VREFP",
"type": "input",
"description": "Positive reference input; VREFP must be within VREFN + 0.5 V to AVDD + 0.1 V."
},
{
"number": "19",
"name": "PWDN",
"type": "input",
"description": "Power-down input, active low."
},
{
"number": "20",
"name": "RESET",
"type": "input",
"description": "Reset input in register mode; in pin mode this pin is the sync input."
},
{
"number": "21",
"name": "PINMODE",
"type": "input",
"description": "Control mode select: 1 = pin mode, 0 = register mode."
},
{
"number": "22",
"name": "DVDD",
"type": "power_in",
"description": "Digital power supply, +1.8 V to +3.3V (DVDD is specified at 1.65 V to 3.6 V in the electrical characteristics)."
},
{
"number": "23",
"name": "DGND",
"type": "power_in",
"description": "Digital ground."
},
{
"number": "24",
"name": "BYPAS",
"type": "passive",
"description": "Digital core bypass; connect a 1mF bypass capacitor to GND as printed in the datasheet."
}
],
"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: The pin-mode and register-mode text for these dual-function pins is garbled in the extracted layout.; The bypass capacitor value is printed as '1mF' in the extracted text, which is probably a ยต-symbol r; Supply limits in the descriptions come from the Electrical Characteristics table on page 4, not from"
],
"pages_sent": 11,
"cost_usd": 0.0713,
"at": "2026-10-11T14:50:24"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/ads1281",
"pages": 51,
"sha256": "e7708c8998f267c1",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 24,
"described": 24,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
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"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.4,
7.8,
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],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "706322f42d9793ebf28d5b80100a68bfa8769998a00b78acadf7af937fc1454f",
"checked": "2026-10-11",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "ads1281ipwr-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
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"footprint_binding": "identity",
"sha256": "54cde787fdca4debca202b8461cb29bb680bff6a2f08bad1261ede06bcfe5873",
"checked": "2026-10-11",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "TSSOP-24",
"Category": "Data Acquisition",
"Pins": "24"
}
},
"variants": [],
"sections": [
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"discovery_triggers": [
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],
"discovery_pitch": "ADS1281IPWR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
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}