component
ADS8331IBPWR
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Texas Instruments Analog To Digital Converters (ADC), TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+60@@ -0,0 +1,60 @@+# ADS8331IBPWR++**Texas Instruments** · Analog To Digital Converters (ADC) · TSSOP-24++ADS8331IBPWR from Texas Instruments, in a TSSOP-24. 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 | IN1 | input | Mux input channel 1; absolute maximum -0.3 V to VA + 0.3 V relative to AGND. |+| 2 | IN2 | input | Mux input channel 2; absolute maximum -0.3 V to VA + 0.3 V relative to AGND. |+| 3 | IN3 | input | Mux input channel 3; absolute maximum -0.3 V to VA + 0.3 V relative to AGND. |+| 4 | NC | unconnected | No internal connection (ADS8331 only). |+| 5 | NC | unconnected | No internal connection (ADS8331 only). |+| 6 | NC | unconnected | No internal connection (ADS8331 only). |+| 7 | NC | unconnected | No internal connection (ADS8331 only). |+| 8 | RESET | input | External reset, active low. |+| 9 | EOC/INT/CDI | bidirectional | Programmable status output (EOC low during conversion by default, or INT low after end of conversion and high after FS/CS goes low, with programmable polarity), also usable as chain data input (CDI) in daisy-chain mode. |+| 10 | SCLK | input | SPI clock for the serial interface, up to 40 MHz at VA = VBD = 5 V. |+| 11 | FS/CS | input | Frame sync signal for a DSP (such as TMS320 DSP) or chip select input for SPI. |+| 12 | SDI | input | SPI serial data input. |+| 13 | SDO | output | SPI serial data output. |+| 14 | DGND | power_in | Digital interface ground. |+| 15 | CONVST | input | Conversion start input that freezes the sample and hold and starts conversion. |+| 16 | VBD | power_in | Digital interface supply, 1.65 V to VA + 0.2 V recommended. |+| 17 | VA | power_in | Analog supply, 2.7 V to 5.5 V. |+| 18 | REF+ | input | External reference input; absolute maximum -0.3 V to VA + 0.3 V relative to AGND. |+| 19 | REF- | power_in | External reference ground, to be connected to AGND through an individual via on the printed-circuit board. |+| 20 | AGND | power_in | Analog ground. |+| 21 | ADCIN | input | ADC input; absolute maximum -0.3 V to VA + 0.3 V relative to AGND. |+| 22 | MUXOUT | output | Mux output. |+| 23 | COM | input | Common ADC input, usually connected to AGND. |+| 24 | IN0 | input | Mux input channel 0; absolute maximum -0.3 V to VA + 0.3 V relative to AGND. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-24 |+| Category | Data Acquisition |+| Pins | 24 |++## CAD (KiCad official)++- Symbol: `ADS8331IBPWR`+- Footprint: `Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm`+- 3D model: TSSOP-24 (KiCad packages3D, STEP)+- 3D model files: `ads8331ibpwr-etched.step` / `ads8331ibpwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ads8331ibpwr.step` / `ads8331ibpwr.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 2026-10-07, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/ads8331ibpwr-datasheet.pdf)
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absolute maximum -0.3 V to VA + 0.3 V relative to AGND."+ },+ {+ "number": "2",+ "name": "IN2",+ "type": "input",+ "description": "Mux input channel 2; absolute maximum -0.3 V to VA + 0.3 V relative to AGND."+ },+ {+ "number": "3",+ "name": "IN3",+ "type": "input",+ "description": "Mux input channel 3; absolute maximum -0.3 V to VA + 0.3 V relative to AGND."+ },+ {+ "number": "4",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection (ADS8331 only)."+ },+ {+ "number": "5",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection (ADS8331 only)."+ },+ {+ "number": "6",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection (ADS8331 only)."+ },+ {+ "number": "7",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection (ADS8331 only)."+ },+ {+ "number": "8",+ "name": "RESET",+ "type": "input",+ "description": "External reset, active low."+ },+ {+ "number": "9",+ "name": "EOC/INT/CDI",+ "type": "bidirectional",+ "description": "Programmable status output (EOC low during conversion by default, or INT low after end of conversion and high after FS/CS goes low, with programmable polarity), also usable as chain data input (CDI) in daisy-chain mode."+ },+ {+ "number": "10",+ "name": "SCLK",+ "type": "input",+ "description": "SPI clock for the serial interface, up to 40 MHz at VA = VBD = 5 V."+ },+ {+ "number": "11",+ "name": "FS/CS",+ "type": "input",+ "description": "Frame sync signal for a DSP (such as TMS320 DSP) or chip select input for SPI."+ },+ {+ "number": "12",+ "name": "SDI",+ "type": "input",+ "description": "SPI serial data input."+ },+ {+ "number": "13",+ "name": "SDO",+ "type": "output",+ "description": "SPI serial data output."+ },+ {+ "number": "14",+ "name": "DGND",+ "type": "power_in",+ "description": "Digital interface ground."+ },+ {+ "number": "15",+ "name": "CONVST",+ "type": "input",+ "description": "Conversion start input that freezes the sample and hold and starts conversion."+ },+ {+ "number": "16",+ "name": "VBD",+ "type": "power_in",+ "description": "Digital interface supply, 1.65 V to VA + 0.2 V recommended."+ },+ {+ "number": "17",+ "name": "VA",+ "type": "power_in",+ "description": "Analog supply, 2.7 V to 5.5 V."+ },+ {+ "number": "18",+ "name": "REF+",+ "type": "input",+ "description": "External reference input; absolute maximum -0.3 V to VA + 0.3 V relative to AGND."+ },+ {+ "number": "19",+ "name": "REF-",+ "type": "power_in",+ "description": "External reference ground, to be connected to AGND through an individual via on the printed-circuit board."+ },+ {+ "number": "20",+ "name": "AGND",+ "type": "power_in",+ "description": "Analog ground."+ },+ {+ "number": "21",+ "name": "ADCIN",+ "type": "input",+ "description": "ADC input; absolute maximum -0.3 V to VA + 0.3 V relative to AGND."+ },+ {+ "number": "22",+ "name": "MUXOUT",+ "type": "output",+ "description": "Mux output."+ },+ {+ "number": "23",+ "name": "COM",+ "type": "input",+ "description": "Common ADC input, usually connected to AGND."+ },+ {+ "number": "24",+ "name": "IN0",+ "type": "input",+ "description": "Mux input channel 0; absolute maximum -0.3 V to VA + 0.3 V relative to AGND."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: Pin descriptions for IN0-IN3 (pins 1-3, 24) derived from document context showing IN[0:3] at these p"+ ],+ "pages_sent": 11,+ "cost_usd": 0.2056,+ "at": "2026-10-07T09:09:24"+ },+ "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": 24,+ "described": 24,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "ads8331ibpwr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6.4,+ 7.8,+ 0.97+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "706322f42d9793ebf28d5b80100a68bfa8769998a00b78acadf7af937fc1454f",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "ads8331ibpwr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6.4,+ 7.8,+ 0.97+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "ca60f203dfc37f0452a0d4249aad81d2352423c89a46be8f95a9d3063a5fe90f",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}