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ADS131A04IPBS
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Texas Instruments Analog Front End (AFE), TQFP-32(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+69@@ -0,0 +1,69 @@+# ADS131A04IPBS++**Texas Instruments** · Analog Front End (AFE) · TQFP-32(5x5)++ADS131A04IPBS from Texas Instruments, in a TQFP-32(5x5). 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 | AIN1N | input | Negative analog input 1. |+| 2 | AIN1P | input | Positive analog input 1. |+| 3 | AIN2N | input | Negative analog input 2. |+| 4 | AIN2P | input | Positive analog input 2. |+| 5 | AIN3N | input | Negative analog input 3. |+| 6 | AIN3P | input | Positive analog input 3. |+| 7 | AIN4N | input | Negative analog input 4. |+| 8 | AIN4P | input | Positive analog input 4. |+| 9 | AVDD | power_in | Positive analog power supply; requires 1-µF bypass capacitor to AVSS. |+| 10 | AVSS | power_in | Negative analog power supply. |+| 11 | VNCP | power_out | Negative charge pump output; requires 270-nF capacitor to AVSS when enabled or direct connection to AVSS when disabled. |+| 12 | REFP | output | Positive reference voltage output; requires 1-µF bypass capacitor to REFN. |+| 13 | REFN | input | Negative reference voltage input; connect to AVSS. |+| 14 | REFEXT | input | Buffered external reference voltage input; requires 1-µF bypass capacitor to AVSS when using internal reference. |+| 15 | IOVDD | power_in | Digital I/O supply voltage; requires 1-µF bypass capacitor to GND. |+| 16 | RESV | input | Reserved pin; must connect to IOVDD. |+| 17 | RESET | input | System reset input; active low. |+| 18 | DONE | output | Communication done signal output; active low. |+| 19 | DRDY | bidirectional | Data ready signal; active low; provides host interrupt and multi-device synchronization. |+| 20 | DIN | input | Serial data input. |+| 21 | DOUT | output | Serial data output; requires 100-kΩ pullup resistor to IOVDD. |+| 22 | SCLK | bidirectional | Serial data clock. |+| 23 | CS | input | Chip select input; active low. |+| 24 | NC | unconnected | No connection. |+| 25 | XTAL1/CLKIN | input | Master clock or crystal oscillator input. |+| 26 | XTAL2 | output | Crystal oscillator connection; leave floating if oscillator unused. |+| 27 | GND | power_in | Digital ground. |+| 28 | CAP | power_out | Internal LDO regulator output; requires 1-µF bypass capacitor to GND. |+| 29 | IOVDD | power_in | Digital I/O supply voltage; requires 1-µF bypass capacitor to GND. |+| 30 | M0 | input | SPI mode select: IOVDD for asynchronous interrupt mode, GND for synchronous master mode, unconnected for synchronous slave mode. |+| 31 | M1 | input | SPI word transfer size: IOVDD for 32-bit, GND for 24-bit, unconnected for 16-bit mode. |+| 32 | M2 | input | Hamming code enable: IOVDD for validation on, GND for validation off, unconnected (reserved, do not use). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TQFP-32(5x5) |+| Category | Data Acquisition |+| Pins | 32 |++## CAD (KiCad official)++- Symbol: `ADS131A04IPBS`+- Footprint: `Package_QFP:TQFP-32_5x5mm_P0.5mm`+- 3D model: TQFP-32(5x5), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 1.1 mm nominal TQFP height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)+- 3D model files: `ads131a04ipbs-etched.step` / `ads131a04ipbs-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ads131a04ipbs.step` / `ads131a04ipbs.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/ads131a04) (92 pp, sha256 `a195fbfd42808a88`, retrieved 2026-10-06, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **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/ads131a04ipbs-datasheet.pdf)
page.jsonadded+301@@ -0,0 +1,301 @@+{+ "slug": "ads131a04ipbs",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Analog Front End (AFE), TQFP-32(5x5). 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requires 1-µF bypass capacitor to AVSS."+ },+ {+ "number": "10",+ "name": "AVSS",+ "type": "power_in",+ "description": "Negative analog power supply."+ },+ {+ "number": "11",+ "name": "VNCP",+ "type": "power_out",+ "description": "Negative charge pump output; requires 270-nF capacitor to AVSS when enabled or direct connection to AVSS when disabled."+ },+ {+ "number": "12",+ "name": "REFP",+ "type": "output",+ "description": "Positive reference voltage output; requires 1-µF bypass capacitor to REFN."+ },+ {+ "number": "13",+ "name": "REFN",+ "type": "input",+ "description": "Negative reference voltage input; connect to AVSS."+ },+ {+ "number": "14",+ "name": "REFEXT",+ "type": "input",+ "description": "Buffered external reference voltage input; requires 1-µF bypass capacitor to AVSS when using internal reference."+ },+ {+ "number": "15",+ "name": "IOVDD",+ "type": "power_in",+ "description": "Digital I/O supply voltage; requires 1-µF bypass capacitor to GND."+ },+ {+ "number": "16",+ "name": "RESV",+ "type": "input",+ "description": "Reserved pin; must connect to IOVDD."+ },+ {+ "number": "17",+ "name": "RESET",+ "type": "input",+ "description": "System reset input; active low."+ },+ {+ "number": "18",+ "name": "DONE",+ "type": "output",+ "description": "Communication done signal output; active low."+ },+ {+ "number": "19",+ "name": "DRDY",+ "type": "bidirectional",+ "description": "Data ready signal; active low; provides host interrupt and multi-device synchronization."+ },+ {+ "number": "20",+ "name": "DIN",+ "type": "input",+ "description": "Serial data input."+ },+ {+ "number": "21",+ "name": "DOUT",+ "type": "output",+ "description": "Serial data output; requires 100-kΩ pullup resistor to IOVDD."+ },+ {+ "number": "22",+ "name": "SCLK",+ "type": "bidirectional",+ "description": "Serial data clock."+ },+ {+ "number": "23",+ "name": "CS",+ "type": "input",+ "description": "Chip select input; active low."+ },+ {+ "number": "24",+ "name": "NC",+ "type": "unconnected",+ "description": "No connection."+ },+ {+ "number": "25",+ "name": "XTAL1/CLKIN",+ "type": "input",+ "description": "Master clock or crystal oscillator input."+ },+ {+ "number": "26",+ "name": "XTAL2",+ "type": "output",+ "description": "Crystal oscillator connection; leave floating if oscillator unused."+ },+ {+ "number": "27",+ "name": "GND",+ "type": "power_in",+ "description": "Digital ground."+ },+ {+ "number": "28",+ "name": "CAP",+ "type": "power_out",+ "description": "Internal LDO regulator output; requires 1-µF bypass capacitor to GND."+ },+ {+ "number": "29",+ "name": "IOVDD",+ "type": "power_in",+ "description": "Digital I/O supply voltage; requires 1-µF bypass capacitor to GND."+ },+ {+ "number": "30",+ "name": "M0",+ "type": "input",+ "description": "SPI mode select: IOVDD for asynchronous interrupt mode, GND for synchronous master mode, unconnected for synchronous slave mode."+ },+ {+ "number": "31",+ "name": "M1",+ "type": "input",+ "description": "SPI word transfer size: IOVDD for 32-bit, GND for 24-bit, unconnected for 16-bit mode."+ },+ {+ "number": "32",+ "name": "M2",+ "type": "input",+ "description": "Hamming code enable: IOVDD for validation on, GND for validation off, unconnected (reserved, do not use)."+ }+ ],+ "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": [],+ "pages_sent": 14,+ "cost_usd": 0.2,+ "at": "2026-10-06T02:24:00"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/ads131a04",+ "pages": 92,+ "sha256": "a195fbfd42808a88",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 32,+ "described": 32,+ "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]"+ }+}