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ADS1293CISQ
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Texas Instruments Analog Front End (AFE), QFN-28-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+66@@ -0,0 +1,66 @@+# ADS1293CISQ++**Texas Instruments** · Analog Front End (AFE) · QFN-28-EP(5x5)++ADS1293CISQ from Texas Instruments, in a QFN-28-EP(5x5). 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 input electrode signal with ±400mV differential range and EMI filtering. |+| 2 | IN2 | input | Analog input electrode signal with ±400mV differential range and EMI filtering. |+| 3 | IN3 | input | Analog input electrode signal with ±400mV differential range and EMI filtering. |+| 4 | IN4 | input | Analog input electrode signal with ±400mV differential range and EMI filtering. |+| 5 | IN5 | input | Analog input electrode signal with ±400mV differential range and EMI filtering. |+| 6 | IN6 | input | Analog input electrode signal with ±400mV differential range and EMI filtering. |+| 7 | WCT | output | Wilson Central Terminal reference output or analog pace channel output. |+| 8 | CMOUT | output | Common-mode detector output averaging input electrode voltages. |+| 9 | RLDOUT | output | Right-leg drive amplifier output for patient electrode biasing. |+| 10 | RLDINV | input | Right-leg drive amplifier inverting input. |+| 11 | RLDIN | bidirectional | Right-leg drive amplifier non-inverting input or analog pace channel output. |+| 12 | RLDREF | output | Internal reference output generating VDD/2.2 for common-mode bias. |+| 13 | SYNCB | bidirectional | Synchronization signal input or output for multi-chip synchronization. |+| 14 | VSSIO | power_in | Digital I/O supply ground connection. |+| 15 | ALARMB | output | Active-low open-drain output indicating system alarm conditions. |+| 16 | CSB | input | Active-low chip select for SPI communication. |+| 17 | SCLK | input | Serial clock input for SPI with maximum frequency of 20 MHz. |+| 18 | SDI | input | Serial data input sampled on rising edge of SCLK. |+| 19 | SDO | output | Serial data output driven on falling edge of SCLK. |+| 20 | DRDYB | output | Active-low data ready output asserted when new conversion data available. |+| 21 | CLK | bidirectional | Bi-directional 409.6 kHz clock output or external clock input. |+| 22 | VDDIO | power_in | Digital I/O supply voltage, 1.65V to 3.6V or up to VDD if VDD ≤ 3.6V. |+| 23 | XTAL1 | input | External crystal for clock oscillator connection with 20pF load capacitor, nominal frequency 4.096 MHz. |+| 24 | XTAL2 | input | External crystal for clock oscillator connection with 20pF load capacitor, nominal frequency 4.096 MHz. |+| 25 | RSTB | input | Active-low reset input. |+| 26 | CVREF | bidirectional | Internal 2.4V reference output or external reference input, requires 1µF low-ESR bypass capacitor. |+| 27 | VSS | power_in | Analog supply ground connection. |+| 28 | VDD | power_in | Analog supply voltage input, 2.7V to 5.5V range. |+| 29 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | QFN-28-EP(5x5) |+| Category | Data Acquisition |+| Pins | 29 |++## CAD (KiCad official)++- Symbol: `ADS1293CISQ`+- Footprint: `Package_DFN_QFN:QFN-28-1EP_5x5mm_P0.5mm_EP3.35x3.35mm`+- 3D model: QFN-28-EP(5x5) (KiCad packages3D, STEP)+- 3D model files: `ads1293cisq-etched.step` / `ads1293cisq-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ads1293cisq.step` / `ads1293cisq.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/ads1293) (78 pp, sha256 `d59fe1b658d0e77f`, retrieved 2026-09-18, 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 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/ads1293cisq-datasheet.pdf)
page.jsonadded+271@@ -0,0 +1,271 @@+{+ "slug": "ads1293cisq",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Analog Front End (AFE), QFN-28-EP(5x5). Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "data acquisition",+ "ads1293cisq",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ads1293cisq.kicad_sym",+ "ads1293cisq.kicad_mod",+ "ads1293cisq.glb",+ "ads1293cisq.step",+ "ads1293cisq.lbr",+ "docs/hero.png",+ "docs/ads1293cisq-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "ADS1293CISQ",+ "manufacturer": "Texas Instruments",+ "package": "QFN-28-EP(5x5)",+ "pin_count": 29,+ "category": "Data Acquisition",+ "subcategory": "Analog Front End (AFE)",+ "datasheet": "https://www.ti.com/cn/lit/gpn/ads1293",+ "parts": {+ "symbol": "ads1293cisq.kicad_sym",+ "footprint": "ads1293cisq.kicad_mod",+ "model_3d": "ads1293cisq-etched.glb",+ "model_3d_plain": "ads1293cisq.glb",+ "model_3d_step": "ads1293cisq-etched.step",+ "model_3d_step_plain": "ads1293cisq.step",+ "lbr": "ads1293cisq.lbr"+ },+ "distributor_links": {+ "lcsc": "C181260"+ },+ "pins": [+ {+ "number": "1",+ "name": "IN1",+ "type": "input",+ "description": "Analog input electrode signal with ±400mV differential range and EMI filtering."+ },+ {+ "number": "2",+ "name": "IN2",+ "type": "input",+ "description": "Analog input electrode signal with ±400mV differential range and EMI filtering."+ },+ {+ "number": "3",+ "name": "IN3",+ "type": "input",+ "description": "Analog input electrode signal with ±400mV differential range and EMI filtering."+ },+ {+ "number": "4",+ "name": "IN4",+ "type": "input",+ "description": "Analog input electrode signal with ±400mV differential range and EMI filtering."+ },+ {+ "number": "5",+ "name": "IN5",+ "type": "input",+ "description": "Analog input electrode signal with ±400mV differential range and EMI filtering."+ },+ {+ "number": "6",+ "name": "IN6",+ "type": "input",+ "description": "Analog input electrode signal with ±400mV differential range and EMI filtering."+ },+ {+ "number": "7",+ "name": "WCT",+ "type": "output",+ "description": "Wilson Central Terminal reference output or analog pace channel output."+ },+ {+ "number": "8",+ "name": "CMOUT",+ "type": "output",+ "description": "Common-mode detector output averaging input electrode voltages."+ },+ {+ "number": "9",+ "name": "RLDOUT",+ "type": "output",+ "description": "Right-leg drive amplifier output for patient electrode biasing."+ },+ {+ "number": "10",+ "name": "RLDINV",+ "type": "input",+ "description": "Right-leg drive amplifier inverting input."+ },+ {+ "number": "11",+ "name": "RLDIN",+ "type": "bidirectional",+ "description": "Right-leg drive amplifier non-inverting input or analog pace channel output."+ },+ {+ "number": "12",+ "name": "RLDREF",+ "type": "output",+ "description": "Internal reference output generating VDD/2.2 for common-mode bias."+ },+ {+ "number": "13",+ "name": "SYNCB",+ "type": "bidirectional",+ "description": "Synchronization signal input or output for multi-chip synchronization."+ },+ {+ "number": "14",+ "name": "VSSIO",+ "type": "power_in",+ "description": "Digital I/O supply ground connection."+ },+ {+ "number": "15",+ "name": "ALARMB",+ "type": "output",+ "description": "Active-low open-drain output indicating system alarm conditions."+ },+ {+ "number": "16",+ "name": "CSB",+ "type": "input",+ "description": "Active-low chip select for SPI communication."+ },+ {+ "number": "17",+ "name": "SCLK",+ "type": "input",+ "description": "Serial clock input for SPI with maximum frequency of 20 MHz."+ },+ {+ "number": "18",+ "name": "SDI",+ "type": "input",+ "description": "Serial data input sampled on rising edge of SCLK."+ },+ {+ "number": "19",+ "name": "SDO",+ "type": "output",+ "description": "Serial data output driven on falling edge of SCLK."+ },+ {+ "number": "20",+ "name": "DRDYB",+ "type": "output",+ "description": "Active-low data ready output asserted when new conversion data available."+ },+ {+ "number": "21",+ "name": "CLK",+ "type": "bidirectional",+ "description": "Bi-directional 409.6 kHz clock output or external clock input."+ },+ {+ "number": "22",+ "name": "VDDIO",+ "type": "power_in",+ "description": "Digital I/O supply voltage, 1.65V to 3.6V or up to VDD if VDD ≤ 3.6V."+ },+ {+ "number": "23",+ "name": "XTAL1",+ "type": "input",+ "description": "External crystal for clock oscillator connection with 20pF load capacitor, nominal frequency 4.096 MHz."+ },+ {+ "number": "24",+ "name": "XTAL2",+ "type": "input",+ "description": "External crystal for clock oscillator connection with 20pF load capacitor, nominal frequency 4.096 MHz."+ },+ {+ "number": "25",+ "name": "RSTB",+ "type": "input",+ "description": "Active-low reset input."+ },+ {+ "number": "26",+ "name": "CVREF",+ "type": "bidirectional",+ "description": "Internal 2.4V reference output or external reference input, requires 1µF low-ESR bypass capacitor."+ },+ {+ "number": "27",+ "name": "VSS",+ "type": "power_in",+ "description": "Analog supply ground connection."+ },+ {+ "number": "28",+ "name": "VDD",+ "type": "power_in",+ "description": "Analog supply voltage input, 2.7V to 5.5V range."+ },+ {+ "number": "29",+ "name": "EP",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "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-4-6",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: XTAL1 and XTAL2 are both listed as 'Digital Input' type in the pin functions table, but typical crys; The pin functions table lists 'DAP' (exposed thermal pad) marked as 'No connect' without a formal pi",+ "exposed pad 29 added from the footprint",+ "4/29 pins cited to the wrong page (name found elsewhere): ['2:IN2@p3', '3:IN3@p3', '4:IN4@p3', '5:IN5@p3']"+ ],+ "pages_sent": 78,+ "cost_usd": 0.756,+ "at": "2026-09-18T02:33:02"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/ads1293",+ "pages": 78,+ "sha256": "d59fe1b658d0e77f",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 29,+ "described": 29,+ "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]"+ }+}