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ADS1291IPBSR
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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 @@+# ADS1291IPBSR++**Texas Instruments** · Analog Front End (AFE) · TQFP-32(5x5)++ADS1291IPBSR 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 | PGA1N | output | PGA1 inverting output. |+| 2 | PGA1P | output | PGA1 noninverting output. |+| 3 | IN1N | input | Differential analog negative input 1; connect to AVDD if unused. |+| 4 | IN1P | input | Differential analog positive input 1; connect to AVDD if unused. |+| 5 | IN2N | input | Differential analog negative input 2; connect to AVDD if unused. |+| 6 | IN2P | input | Differential analog positive input 2; connect to AVDD if unused. |+| 7 | PGA2N | output | PGA2 inverting output. |+| 8 | PGA2P | output | PGA2 noninverting output. |+| 9 | VREFP | bidirectional | Positive reference voltage (analog input/output pin). |+| 10 | VREFN | input | Negative reference voltage; must be connected to AVSS. |+| 11 | VCAP1 | passive | Analog bypass capacitor connection. |+| 12 | AVDD | power_in | Analog supply, 2.7 V to 5.25 V referenced to AVSS. |+| 13 | AVSS | power_in | Analog ground; also the required connection for the thermal pad and VREFN. |+| 14 | CLKSEL | input | Master clock select. |+| 15 | PWDN/RESET | input | Power-down or system reset, active low. |+| 16 | START | input | Start conversion. |+| 17 | CLK | input | Master clock input. |+| 18 | CS | input | SPI chip select. |+| 19 | DIN | input | SPI data input. |+| 20 | SCLK | input | SPI serial clock. |+| 21 | DOUT | output | SPI data output. |+| 22 | DRDY | output | Data ready, active low. |+| 23 | DVDD | power_in | Digital power supply, 1.7 V to 3.6 V referenced to DGND. |+| 24 | DGND | power_in | Digital ground. |+| 25 | GPIO2/RCLK2 | bidirectional | General-purpose I/O 2, or respiration clock 2 (ADS1292R only). |+| 26 | GPIO1/RCLK1 | bidirectional | General-purpose I/O 1, or respiration clock 1 (ADS1292R only). |+| 27 | VCAP2 | passive | Analog bypass capacitor connection. |+| 28 | RLDINV | input | Right leg drive inverting input; connect to AVDD if not used. |+| 29 | RLDIN/RLDREF | input | Right leg drive input to MUX or RLD amplifier noninverting input; connect to AVDD if not used. |+| 30 | RLDOUT | output | Right leg drive analog output. |+| 31 | RESP_MODP/IN3P | bidirectional | P-side respiration excitation signal (analog output) or auxiliary input 3P (analog input); respiration function is ADS1292R only. |+| 32 | RESP_MODN/IN3N | bidirectional | N-side respiration excitation signal (analog output) or auxiliary input 3N (analog input); respiration function is ADS1292R only. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TQFP-32(5x5) |+| Category | Data Acquisition |+| Pins | 32 |++## CAD (KiCad official)++- Symbol: `ADS1291IPBSR`+- 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: `ads1291ipbsr-etched.step` / `ads1291ipbsr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ads1291ipbsr.step` / `ads1291ipbsr.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/ads1291) (83 pp, sha256 `82b2aac52bf182df`, retrieved 2026-10-08, 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-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/ads1291ipbsr-datasheet.pdf)
page.jsonadded+344@@ -0,0 +1,344 @@+{+ "slug": "ads1291ipbsr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Analog Front End (AFE), TQFP-32(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "data acquisition",+ "ads1291ipbsr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ads1291ipbsr.kicad_sym",+ "ads1291ipbsr.kicad_mod",+ "ads1291ipbsr.glb",+ "ads1291ipbsr.step",+ "ads1291ipbsr.lbr",+ "docs/hero.png",+ "docs/ads1291ipbsr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "ads1291ipbsr-hero.glb",+ "ads1291ipbsr-hero.overlay.json"+ ],+ "component": {+ "mpn": "ADS1291IPBSR",+ "manufacturer": "Texas Instruments",+ "package": "TQFP-32(5x5)",+ "pin_count": 32,+ "category": "Data Acquisition",+ "subcategory": "Analog Front End (AFE)",+ "datasheet": "https://www.ti.com/cn/lit/gpn/ads1291",+ "parts": {+ "symbol": "ads1291ipbsr.kicad_sym",+ "footprint": "ads1291ipbsr.kicad_mod",+ "model_3d": "ads1291ipbsr-hero.glb",+ "model_3d_plain": "ads1291ipbsr.glb",+ "model_3d_step": "ads1291ipbsr-etched.step",+ "model_3d_step_plain": "ads1291ipbsr.step",+ "lbr": "ads1291ipbsr.lbr"+ },+ "distributor_links": {+ "lcsc": "C543023",+ "digikey": "ADS1291IPBSR-ND",+ "mouser": "595-ADS1291IPBSR"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T03:21:28Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "ADS1291IPBSR-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-ADS1291IPBSR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "PGA1N",+ "type": "output",+ "description": "PGA1 inverting output."+ },+ {+ "number": "2",+ "name": "PGA1P",+ "type": "output",+ "description": "PGA1 noninverting output."+ },+ {+ "number": "3",+ "name": "IN1N",+ "type": "input",+ "description": "Differential analog negative input 1; connect to AVDD if unused."+ },+ {+ "number": "4",+ "name": "IN1P",+ "type": "input",+ "description": "Differential analog positive input 1; connect to AVDD if unused."+ },+ {+ "number": "5",+ "name": "IN2N",+ "type": "input",+ "description": "Differential analog negative input 2; connect to AVDD if unused."+ },+ {+ "number": "6",+ "name": "IN2P",+ "type": "input",+ "description": "Differential analog positive input 2; connect to AVDD if unused."+ },+ {+ "number": "7",+ "name": "PGA2N",+ "type": "output",+ "description": "PGA2 inverting output."+ },+ {+ "number": "8",+ "name": "PGA2P",+ "type": "output",+ "description": "PGA2 noninverting output."+ },+ {+ "number": "9",+ "name": "VREFP",+ "type": "bidirectional",+ "description": "Positive reference voltage (analog input/output pin)."+ },+ {+ "number": "10",+ "name": "VREFN",+ "type": "input",+ "description": "Negative reference voltage; must be connected to AVSS."+ },+ {+ "number": "11",+ "name": "VCAP1",+ "type": "passive",+ "description": "Analog bypass capacitor connection."+ },+ {+ "number": "12",+ "name": "AVDD",+ "type": "power_in",+ "description": "Analog supply, 2.7 V to 5.25 V referenced to AVSS."+ },+ {+ "number": "13",+ "name": "AVSS",+ "type": "power_in",+ "description": "Analog ground; also the required connection for the thermal pad and VREFN."+ },+ {+ "number": "14",+ "name": "CLKSEL",+ "type": "input",+ "description": "Master clock select."+ },+ {+ "number": "15",+ "name": "PWDN/RESET",+ "type": "input",+ "description": "Power-down or system reset, active low."+ },+ {+ "number": "16",+ "name": "START",+ "type": "input",+ "description": "Start conversion."+ },+ {+ "number": "17",+ "name": "CLK",+ "type": "input",+ "description": "Master clock input."+ },+ {+ "number": "18",+ "name": "CS",+ "type": "input",+ "description": "SPI chip select."+ },+ {+ "number": "19",+ "name": "DIN",+ "type": "input",+ "description": "SPI data input."+ },+ {+ "number": "20",+ "name": "SCLK",+ "type": "input",+ "description": "SPI serial clock."+ },+ {+ "number": "21",+ "name": "DOUT",+ "type": "output",+ "description": "SPI data output."+ },+ {+ "number": "22",+ "name": "DRDY",+ "type": "output",+ "description": "Data ready, active low."+ },+ {+ "number": "23",+ "name": "DVDD",+ "type": "power_in",+ "description": "Digital power supply, 1.7 V to 3.6 V referenced to DGND."+ },+ {+ "number": "24",+ "name": "DGND",+ "type": "power_in",+ "description": "Digital ground."+ },+ {+ "number": "25",+ "name": "GPIO2/RCLK2",+ "type": "bidirectional",+ "description": "General-purpose I/O 2, or respiration clock 2 (ADS1292R only)."+ },+ {+ "number": "26",+ "name": "GPIO1/RCLK1",+ "type": "bidirectional",+ "description": "General-purpose I/O 1, or respiration clock 1 (ADS1292R only)."+ },+ {+ "number": "27",+ "name": "VCAP2",+ "type": "passive",+ "description": "Analog bypass capacitor connection."+ },+ {+ "number": "28",+ "name": "RLDINV",+ "type": "input",+ "description": "Right leg drive inverting input; connect to AVDD if not used."+ },+ {+ "number": "29",+ "name": "RLDIN/RLDREF",+ "type": "input",+ "description": "Right leg drive input to MUX or RLD amplifier noninverting input; connect to AVDD if not used."+ },+ {+ "number": "30",+ "name": "RLDOUT",+ "type": "output",+ "description": "Right leg drive analog output."+ },+ {+ "number": "31",+ "name": "RESP_MODP/IN3P",+ "type": "bidirectional",+ "description": "P-side respiration excitation signal (analog output) or auxiliary input 3P (analog input); respiration function is ADS1292R only."+ },+ {+ "number": "32",+ "name": "RESP_MODN/IN3N",+ "type": "bidirectional",+ "description": "N-side respiration excitation signal (analog output) or auxiliary input 3N (analog input); respiration function is ADS1292R only."+ }+ ],+ "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 thermal pad on the TQFP-32 package is a power pad with no printed pin number. It must be connect; The pin table covers the whole ADS1291/ADS1292/ADS1292R family. The respiration functions (RESP_MOD,; Pin types for analog and mixed-function pins (VREFP, RESP_MODP/IN3P, RESP_MODN/IN3N, GPIO1/RCLK1, GP"+ ],+ "pages_sent": 10,+ "cost_usd": 0.0874,+ "at": "2026-10-08T03:20:59"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/ads1291",+ "pages": 83,+ "sha256": "82b2aac52bf182df",+ "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"+ },+ "models_3d": [+ {+ "file": "ads1291ipbsr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6.96,+ 6.96,+ 1.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "9daebc29f42260700753da2065619a0c66fa88fb68ac06210fb3f077462b72e4",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "ads1291ipbsr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6.96,+ 6.96,+ 1.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "e497c13216010f2293db27ee7f87b982f56905caf3b8dec88c892fb2cbe50ca1",+ "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]"+ }+}