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ADS8331IRGER
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Texas Instruments Analog To Digital Converters (ADC), VQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+61@@ -0,0 +1,61 @@+# ADS8331IRGER++**Texas Instruments** · Analog To Digital Converters (ADC) · VQFN-24-EP(4x4)++ADS8331IRGER from Texas Instruments, in a VQFN-24-EP(4x4). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | NC | unconnected | No internal connection on the ADS8331 (this pin is IN4 on the ADS8332); leave it unconnected. |+| 2 | NC | unconnected | No internal connection on the ADS8331 (this pin is IN5 on the ADS8332); leave it unconnected. |+| 3 | NC | unconnected | No internal connection on the ADS8331 (this pin is IN6 on the ADS8332); leave it unconnected. |+| 4 | NC | unconnected | No internal connection on the ADS8331 (this pin is IN7 on the ADS8332); leave it unconnected. |+| 5 | RESET | input | External reset input, active low. |+| 6 | EOC/INT/CDI | output | Programmable status output: end-of-conversion (low during conversion by default) or interrupt (low after conversion, returns high after FS/CS goes low), with programmable polarity; it can also serve as chain data input (CDI) in daisy-chain mode. |+| 7 | SCLK | input | SPI clock input for the serial interface. |+| 8 | FS/CS | input | Frame sync input for DSP operation or chip select input for SPI. |+| 9 | SDI | input | SPI serial data input. |+| 10 | SDO | output | SPI serial data output. |+| 11 | DGND | power_in | Digital interface ground. |+| 12 | CONVST | input | Conversion start input; freezes the sample-and-hold and starts a conversion. Global CONVST is independent of CS. |+| 13 | VBD | power_in | Digital interface supply; recommended operating range is 1.65 V to VA + 0.2 V. |+| 14 | VA | power_in | Analog supply, 2.7 V to 5.5 V. |+| 15 | REF+ | input | External reference input. |+| 16 | REF- | power_in | External reference ground; connect to AGND through an individual via on the printed-circuit board. |+| 17 | AGND | power_in | Analog ground. |+| 18 | ADCIN | input | ADC input; absolute maximum voltage to AGND is -0.3 V to VA + 0.3 V. |+| 19 | MUXOUT | output | Multiplexer output. |+| 20 | COM | input | Common ADC input, usually connected to AGND; absolute maximum voltage to AGND is -0.3 V to 0.3 V. |+| 21 | IN0 | input | Multiplexer analog input 0; absolute maximum voltage to AGND is -0.3 V to VA + 0.3 V. |+| 22 | IN1 | input | Multiplexer analog input 1; absolute maximum voltage to AGND is -0.3 V to VA + 0.3 V. |+| 23 | IN2 | input | Multiplexer analog input 2; absolute maximum voltage to AGND is -0.3 V to VA + 0.3 V. |+| 24 | IN3 | input | Multiplexer analog input 3; absolute maximum voltage to AGND is -0.3 V to VA + 0.3 V. |+| 25 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VQFN-24-EP(4x4) |+| Category | Data Acquisition |+| Pins | 25 |++## CAD (KiCad official)++- Symbol: `ADS8331IRGER`+- Footprint: `Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm`+- 3D model: VQFN-24-EP(4x4) (KiCad packages3D, STEP)+- 3D model files: `ads8331irger-etched.step` / `ads8331irger-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ads8331irger.step` / `ads8331irger.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/ads8331) (62 pp, sha256 `6d4028ed191231f0`, retrieved 2026-10-08, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/ads8331irger-datasheet.pdf)
page.jsonadded+303@@ -0,0 +1,303 @@+{+ "slug": "ads8331irger",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Analog To Digital Converters (ADC), VQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "data acquisition",+ "ads8331irger",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ads8331irger.kicad_sym",+ "ads8331irger.kicad_mod",+ "ads8331irger.glb",+ "ads8331irger.step",+ "ads8331irger.lbr",+ "docs/hero.png",+ "docs/ads8331irger-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "ads8331irger-hero.glb",+ "ads8331irger-hero.overlay.json"+ ],+ "component": {+ "mpn": "ADS8331IRGER",+ "manufacturer": "Texas Instruments",+ "package": "VQFN-24-EP(4x4)",+ "pin_count": 25,+ "category": "Data Acquisition",+ "subcategory": "Analog To Digital Converters (ADC)",+ "datasheet": "https://www.ti.com/cn/lit/gpn/ads8331",+ "parts": {+ "symbol": "ads8331irger.kicad_sym",+ "footprint": "ads8331irger.kicad_mod",+ "model_3d": "ads8331irger-hero.glb",+ "model_3d_plain": "ads8331irger.glb",+ "model_3d_step": "ads8331irger-etched.step",+ "model_3d_step_plain": "ads8331irger.step",+ "lbr": "ads8331irger.lbr"+ },+ "distributor_links": {+ "lcsc": "C2669950",+ "digikey": "296-25861-2-ND",+ "mouser": "595-ADS8331IRGER"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T02:37:18Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-25861-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-ADS8331IRGER",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection on the ADS8331 (this pin is IN4 on the ADS8332); leave it unconnected."+ },+ {+ "number": "2",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection on the ADS8331 (this pin is IN5 on the ADS8332); leave it unconnected."+ },+ {+ "number": "3",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection on the ADS8331 (this pin is IN6 on the ADS8332); leave it unconnected."+ },+ {+ "number": "4",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection on the ADS8331 (this pin is IN7 on the ADS8332); leave it unconnected."+ },+ {+ "number": "5",+ "name": "RESET",+ "type": "input",+ "description": "External reset input, active low."+ },+ {+ "number": "6",+ "name": "EOC/INT/CDI",+ "type": "output",+ "description": "Programmable status output: end-of-conversion (low during conversion by default) or interrupt (low after conversion, returns high after FS/CS goes low), with programmable polarity; it can also serve as chain data input (CDI) in daisy-chain mode."+ },+ {+ "number": "7",+ "name": "SCLK",+ "type": "input",+ "description": "SPI clock input for the serial interface."+ },+ {+ "number": "8",+ "name": "FS/CS",+ "type": "input",+ "description": "Frame sync input for DSP operation or chip select input for SPI."+ },+ {+ "number": "9",+ "name": "SDI",+ "type": "input",+ "description": "SPI serial data input."+ },+ {+ "number": "10",+ "name": "SDO",+ "type": "output",+ "description": "SPI serial data output."+ },+ {+ "number": "11",+ "name": "DGND",+ "type": "power_in",+ "description": "Digital interface ground."+ },+ {+ "number": "12",+ "name": "CONVST",+ "type": "input",+ "description": "Conversion start input; freezes the sample-and-hold and starts a conversion. Global CONVST is independent of CS."+ },+ {+ "number": "13",+ "name": "VBD",+ "type": "power_in",+ "description": "Digital interface supply; recommended operating range is 1.65 V to VA + 0.2 V."+ },+ {+ "number": "14",+ "name": "VA",+ "type": "power_in",+ "description": "Analog supply, 2.7 V to 5.5 V."+ },+ {+ "number": "15",+ "name": "REF+",+ "type": "input",+ "description": "External reference input."+ },+ {+ "number": "16",+ "name": "REF-",+ "type": "power_in",+ "description": "External reference ground; connect to AGND through an individual via on the printed-circuit board."+ },+ {+ "number": "17",+ "name": "AGND",+ "type": "power_in",+ "description": "Analog ground."+ },+ {+ "number": "18",+ "name": "ADCIN",+ "type": "input",+ "description": "ADC input; absolute maximum voltage to AGND is -0.3 V to VA + 0.3 V."+ },+ {+ "number": "19",+ "name": "MUXOUT",+ "type": "output",+ "description": "Multiplexer output."+ },+ {+ "number": "20",+ "name": "COM",+ "type": "input",+ "description": "Common ADC input, usually connected to AGND; absolute maximum voltage to AGND is -0.3 V to 0.3 V."+ },+ {+ "number": "21",+ "name": "IN0",+ "type": "input",+ "description": "Multiplexer analog input 0; absolute maximum voltage to AGND is -0.3 V to VA + 0.3 V."+ },+ {+ "number": "22",+ "name": "IN1",+ "type": "input",+ "description": "Multiplexer analog input 1; absolute maximum voltage to AGND is -0.3 V to VA + 0.3 V."+ },+ {+ "number": "23",+ "name": "IN2",+ "type": "input",+ "description": "Multiplexer analog input 2; absolute maximum voltage to AGND is -0.3 V to VA + 0.3 V."+ },+ {+ "number": "24",+ "name": "IN3",+ "type": "input",+ "description": "Multiplexer analog input 3; absolute maximum voltage to AGND is -0.3 V to VA + 0.3 V."+ },+ {+ "number": "25",+ "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: The exposed thermal pad (bottom side) is not given a pin number in the text. It is listed only as 'T; EOC/INT/CDI is listed as O/O/I in the datasheet (output for EOC or INT, input for CDI in daisy-chain; REF- is listed without an I/O type in the table and is described as an external reference ground. It",+ "exposed pad 25 added from the footprint"+ ],+ "pages_sent": 11,+ "cost_usd": 0.0819,+ "at": "2026-10-08T02:37:01"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/ads8331",+ "pages": 62,+ "sha256": "6d4028ed191231f0",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 25,+ "described": 25,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "ads8331irger.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 4,+ 4,+ 0.77+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "f7d256794c4147daf24dcae0554fae18510315e565ad1e239b475be7fef80d8b",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "ads8331irger-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 4,+ 4,+ 0.77+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "e901398819544bdd3aa8b3606ad23efbf84c4d5082553cf5e6251be0d1bc60cb",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}