component
ADS8331IPWR
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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 @@+# ADS8331IPWR++**Texas Instruments** · Analog To Digital Converters (ADC) · TSSOP-24++ADS8331IPWR from Texas Instruments, in a TSSOP-24. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | IN1 | input | Analog multiplexer input channel 1, part of the on-chip 4-to-1 mux for the ADS8331. |+| 2 | IN2 | input | Analog multiplexer input channel 2, part of the on-chip 4-to-1 mux for the ADS8331. |+| 3 | IN3 | input | Analog multiplexer input channel 3, part of the on-chip 4-to-1 mux for the ADS8331. |+| 4 | NC | unconnected | No internal connection (ADS8331 only); labeled IN4/NC on the package. |+| 5 | NC | unconnected | No internal connection (ADS8331 only); labeled IN5/NC on the package. |+| 6 | NC | unconnected | No internal connection (ADS8331 only); labeled IN6/NC on the package. |+| 7 | NC | unconnected | No internal connection (ADS8331 only); labeled IN7/NC on the package. |+| 8 | RESET | input | External reset input, active low, used to force the device into its default configuration. |+| 9 | EOC/INT/CDI | bidirectional | Programmable status output (end-of-conversion, low during conversion by default, or interrupt, low after end of conversion until FS/CS goes low) that can also be reconfigured as a chain-data input (CDI) for daisy-chain mode. |+| 10 | SCLK | input | SPI serial clock input for the digital interface, usable up to 40 MHz at VA = VBD = 5 V. |+| 11 | FS/CS | input | Frame sync input for DSP interfacing or chip-select input for SPI operation. |+| 12 | SDI | input | SPI serial data input, sampled on the falling edge of SCLK. |+| 13 | SDO | output | SPI serial data output, presenting the MSB-first conversion result on the falling edge of FS/CS and updating on the falling edge of SCLK. |+| 14 | DGND | power_in | Digital interface ground reference for the VBD supply domain. |+| 15 | CONVST | input | Conversion start input; a low pulse of at least 40 ns freezes the sample-and-hold and starts a conversion, independent of FS/CS. |+| 16 | VBD | power_in | Digital interface supply, 1.65 V to VA, powering the SPI I/O buffers. |+| 17 | VA | power_in | Analog supply voltage, 2.7 V to 5.5 V, powering the analog core of the converter. |+| 18 | REF+ | input | External voltage reference input, accepting 1.2 V to VA (2.525 V max typical at VA=2.7V, 4.2 V max at VA=5V), decoupled with a 10-22 uF ceramic capacitor. |+| 19 | REF- | power_in | External reference ground return; must be connected to the analog ground plane through a separate via and not tied directly to the AGND pin. |+| 20 | AGND | power_in | Analog ground reference for the VA supply domain. |+| 21 | ADCIN | input | ADC sampling input fed from MUXOUT (directly or through external signal conditioning) into the SAR converter's sample-and-hold. |+| 22 | MUXOUT | output | Output of the internal analog input multiplexer, intended to be connected (directly or through signal conditioning) to ADCIN. |+| 23 | COM | input | Common ADC input, usually connected to AGND, limited to AGND -0.2 V to AGND +0.2 V, against which the selected INx channel is measured. |+| 24 | IN0 | input | Analog multiplexer input channel 0, part of the on-chip 4-to-1 mux for the ADS8331. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-24 |+| Category | Data Acquisition |+| Pins | 24 |++## CAD (KiCad official)++- Symbol: `ADS8331IPWR`+- Footprint: `Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm`+- 3D model: TSSOP-24 (KiCad packages3D, STEP)+- 3D model files: `ads8331ipwr-etched.step` / `ads8331ipwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ads8331ipwr.step` / `ads8331ipwr.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 2026-09-23, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-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/ads8331ipwr-datasheet.pdf)
page.jsonadded+239@@ -0,0 +1,239 @@+{+ "slug": "ads8331ipwr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Analog To Digital Converters (ADC), TSSOP-24. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "data acquisition",+ "ads8331ipwr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ads8331ipwr.kicad_sym",+ "ads8331ipwr.kicad_mod",+ "ads8331ipwr.glb",+ "ads8331ipwr.step",+ "ads8331ipwr.lbr",+ "docs/hero.png",+ "docs/ads8331ipwr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "ADS8331IPWR",+ "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/ads8331",+ "parts": {+ "symbol": "ads8331ipwr.kicad_sym",+ "footprint": "ads8331ipwr.kicad_mod",+ "model_3d": "ads8331ipwr-etched.glb",+ "model_3d_plain": "ads8331ipwr.glb",+ "model_3d_step": "ads8331ipwr-etched.step",+ "model_3d_step_plain": "ads8331ipwr.step",+ "lbr": "ads8331ipwr.lbr"+ },+ "distributor_links": {+ "lcsc": "C2670540"+ },+ "pins": [+ {+ "number": "1",+ "name": "IN1",+ "type": "input",+ "description": "Analog multiplexer input channel 1, part of the on-chip 4-to-1 mux for the ADS8331."+ },+ {+ "number": "2",+ "name": "IN2",+ "type": "input",+ "description": "Analog multiplexer input channel 2, part of the on-chip 4-to-1 mux for the ADS8331."+ },+ {+ "number": "3",+ "name": "IN3",+ "type": "input",+ "description": "Analog multiplexer input channel 3, part of the on-chip 4-to-1 mux for the ADS8331."+ },+ {+ "number": "4",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection (ADS8331 only); labeled IN4/NC on the package."+ },+ {+ "number": "5",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection (ADS8331 only); labeled IN5/NC on the package."+ },+ {+ "number": "6",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection (ADS8331 only); labeled IN6/NC on the package."+ },+ {+ "number": "7",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection (ADS8331 only); labeled IN7/NC on the package."+ },+ {+ "number": "8",+ "name": "RESET",+ "type": "input",+ "description": "External reset input, active low, used to force the device into its default configuration."+ },+ {+ "number": "9",+ "name": "EOC/INT/CDI",+ "type": "bidirectional",+ "description": "Programmable status output (end-of-conversion, low during conversion by default, or interrupt, low after end of conversion until FS/CS goes low) that can also be reconfigured as a chain-data input (CDI) for daisy-chain mode."+ },+ {+ "number": "10",+ "name": "SCLK",+ "type": "input",+ "description": "SPI serial clock input for the digital interface, usable up to 40 MHz at VA = VBD = 5 V."+ },+ {+ "number": "11",+ "name": "FS/CS",+ "type": "input",+ "description": "Frame sync input for DSP interfacing or chip-select input for SPI operation."+ },+ {+ "number": "12",+ "name": "SDI",+ "type": "input",+ "description": "SPI serial data input, sampled on the falling edge of SCLK."+ },+ {+ "number": "13",+ "name": "SDO",+ "type": "output",+ "description": "SPI serial data output, presenting the MSB-first conversion result on the falling edge of FS/CS and updating on the falling edge of SCLK."+ },+ {+ "number": "14",+ "name": "DGND",+ "type": "power_in",+ "description": "Digital interface ground reference for the VBD supply domain."+ },+ {+ "number": "15",+ "name": "CONVST",+ "type": "input",+ "description": "Conversion start input; a low pulse of at least 40 ns freezes the sample-and-hold and starts a conversion, independent of FS/CS."+ },+ {+ "number": "16",+ "name": "VBD",+ "type": "power_in",+ "description": "Digital interface supply, 1.65 V to VA, powering the SPI I/O buffers."+ },+ {+ "number": "17",+ "name": "VA",+ "type": "power_in",+ "description": "Analog supply voltage, 2.7 V to 5.5 V, powering the analog core of the converter."+ },+ {+ "number": "18",+ "name": "REF+",+ "type": "input",+ "description": "External voltage reference input, accepting 1.2 V to VA (2.525 V max typical at VA=2.7V, 4.2 V max at VA=5V), decoupled with a 10-22 uF ceramic capacitor."+ },+ {+ "number": "19",+ "name": "REF-",+ "type": "power_in",+ "description": "External reference ground return; must be connected to the analog ground plane through a separate via and not tied directly to the AGND pin."+ },+ {+ "number": "20",+ "name": "AGND",+ "type": "power_in",+ "description": "Analog ground reference for the VA supply domain."+ },+ {+ "number": "21",+ "name": "ADCIN",+ "type": "input",+ "description": "ADC sampling input fed from MUXOUT (directly or through external signal conditioning) into the SAR converter's sample-and-hold."+ },+ {+ "number": "22",+ "name": "MUXOUT",+ "type": "output",+ "description": "Output of the internal analog input multiplexer, intended to be connected (directly or through signal conditioning) to ADCIN."+ },+ {+ "number": "23",+ "name": "COM",+ "type": "input",+ "description": "Common ADC input, usually connected to AGND, limited to AGND -0.2 V to AGND +0.2 V, against which the selected INx channel is measured."+ },+ {+ "number": "24",+ "name": "IN0",+ "type": "input",+ "description": "Analog multiplexer input channel 0, part of the on-chip 4-to-1 mux for the ADS8331."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: Pin 9 (EOC/INT/CDI) can be configured as either an output (EOC or INT) or input (CDI) depending on C; Pins 4-7 are marked NC (no internal connection) for ADS8331 (4-channel variant) but carry IN4-IN7 mu"+ ],+ "pages_sent": 62,+ "cost_usd": 0.7732,+ "at": "2026-09-23T12:37:36"+ },+ "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"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}