component
ADS8638SRGER
Public Made by Adomby adom
Texas Instruments Analog To Digital Converters (ADC), QFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+62@@ -0,0 +1,62 @@+# ADS8638SRGER++**Texas Instruments** · Analog To Digital Converters (ADC) · QFN-24-EP(4x4)++ADS8638SRGER from Texas Instruments, in a QFN-24-EP(4x4). 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 | AVDD | power_in | Analog power supply; supply voltage range 2.7V to 5.25V. |+| 2 | AGND | power_in | Analog ground connection for analog circuits. |+| 3 | AGND | power_in | Analog ground connection for analog circuits. |+| 4 | NC | unconnected | Not internally connected; must not float and should be connected to AGND. |+| 5 | AINGND | power_in | Analog input ground sense terminal for all input channels; operates within ±0.2V of system ground. |+| 6 | AIN7 | input | Analog input channel 7; voltage range software-selectable from ±10V, ±5V, ±2.5V, 0-5V, or 0-10V. |+| 7 | AIN6 | input | Analog input channel 6; voltage range software-selectable from ±10V, ±5V, ±2.5V, 0-5V, or 0-10V. |+| 8 | AIN5 | input | Analog input channel 5; voltage range software-selectable from ±10V, ±5V, ±2.5V, 0-5V, or 0-10V. |+| 9 | AIN4 | input | Analog input channel 4; voltage range software-selectable from ±10V, ±5V, ±2.5V, 0-5V, or 0-10V. |+| 10 | AIN3 | input | Analog input channel 3; voltage range software-selectable from ±10V, ±5V, ±2.5V, 0-5V, or 0-10V. |+| 11 | AIN2 | input | Analog input channel 2; voltage range software-selectable from ±10V, ±5V, ±2.5V, 0-5V, or 0-10V. |+| 12 | AIN1 | input | Analog input channel 1; voltage range software-selectable from ±10V, ±5V, ±2.5V, 0-5V, or 0-10V. |+| 13 | AIN0 | input | Analog input channel 0; voltage range software-selectable from ±10V, ±5V, ±2.5V, 0-5V, or 0-10V. |+| 14 | HVDD | power_in | High-voltage positive supply for multiplexer channels; range 5V to 15V with (HVDD - HVSS) restricted to 10V to 30V. |+| 15 | HVSS | power_in | High-voltage negative supply for multiplexer channels; range -15V to 0V with (HVDD - HVSS) restricted to 10V to 30V. |+| 16 | CS | input | Chip select digital input; active-low signal that controls frame synchronization and conversion start. |+| 17 | SCLK | input | Serial clock input; maximum frequency 20MHz at DVDD = 3.3V; controls data shift timing and conversion. |+| 18 | DIN | input | Serial data input; 16-bit command words latched on SCLK rising edges for device configuration and control. |+| 19 | DOUT | tri_state | Serial data output; 16-bit conversion results or register data shifted out on SCLK falling edges; transitions to high-Z when CS is high. |+| 20 | DGND | power_in | Digital ground connection for digital circuits. |+| 21 | DVDD | power_in | Digital I/O power supply; supply voltage range 1.65V to 5.25V. |+| 22 | AL_PD | bidirectional | Programmable pin functioning as active-high alarm output or active-low asynchronous power-down input; features internal pull-up to DVDD when configured as input. |+| 23 | REFGND | power_in | Reference ground terminal; provides return path for external reference circuit or decoupling ground for internal reference. |+| 24 | REF | input | Voltage reference input; accepts 2.0V to 3.0V external reference or serves as decoupling terminal for internal 2.5V precision reference. |+| 25 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | QFN-24-EP(4x4) |+| Category | Data Acquisition |+| Pins | 25 |++## CAD (KiCad official)++- Symbol: `ADS8638SRGER`+- Footprint: `Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm`+- 3D model: QFN-24-EP(4x4) (KiCad packages3D, STEP)+- 3D model files: `ads8638srger-etched.step` / `ads8638srger-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ads8638srger.step` / `ads8638srger.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/ads8638) (75 pp, sha256 `88befd8fff5977e4`, retrieved 2026-09-23, 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-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/ads8638srger-datasheet.pdf)
page.jsonadded+245@@ -0,0 +1,245 @@+{+ "slug": "ads8638srger",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Analog To Digital Converters (ADC), QFN-24-EP(4x4). Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "data acquisition",+ "ads8638srger",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ads8638srger.kicad_sym",+ "ads8638srger.kicad_mod",+ "ads8638srger.glb",+ "ads8638srger.step",+ "ads8638srger.lbr",+ "docs/hero.png",+ "docs/ads8638srger-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "ADS8638SRGER",+ "manufacturer": "Texas Instruments",+ "package": "QFN-24-EP(4x4)",+ "pin_count": 25,+ "category": "Data Acquisition",+ "subcategory": "Analog To Digital Converters (ADC)",+ "datasheet": "https://www.ti.com/cn/lit/gpn/ads8638",+ "parts": {+ "symbol": "ads8638srger.kicad_sym",+ "footprint": "ads8638srger.kicad_mod",+ "model_3d": "ads8638srger-etched.glb",+ "model_3d_plain": "ads8638srger.glb",+ "model_3d_step": "ads8638srger-etched.step",+ "model_3d_step_plain": "ads8638srger.step",+ "lbr": "ads8638srger.lbr"+ },+ "distributor_links": {+ "lcsc": "C181245"+ },+ "pins": [+ {+ "number": "1",+ "name": "AVDD",+ "type": "power_in",+ "description": "Analog power supply; supply voltage range 2.7V to 5.25V."+ },+ {+ "number": "2",+ "name": "AGND",+ "type": "power_in",+ "description": "Analog ground connection for analog circuits."+ },+ {+ "number": "3",+ "name": "AGND",+ "type": "power_in",+ "description": "Analog ground connection for analog circuits."+ },+ {+ "number": "4",+ "name": "NC",+ "type": "unconnected",+ "description": "Not internally connected; must not float and should be connected to AGND."+ },+ {+ "number": "5",+ "name": "AINGND",+ "type": "power_in",+ "description": "Analog input ground sense terminal for all input channels; operates within ±0.2V of system ground."+ },+ {+ "number": "6",+ "name": "AIN7",+ "type": "input",+ "description": "Analog input channel 7; voltage range software-selectable from ±10V, ±5V, ±2.5V, 0-5V, or 0-10V."+ },+ {+ "number": "7",+ "name": "AIN6",+ "type": "input",+ "description": "Analog input channel 6; voltage range software-selectable from ±10V, ±5V, ±2.5V, 0-5V, or 0-10V."+ },+ {+ "number": "8",+ "name": "AIN5",+ "type": "input",+ "description": "Analog input channel 5; voltage range software-selectable from ±10V, ±5V, ±2.5V, 0-5V, or 0-10V."+ },+ {+ "number": "9",+ "name": "AIN4",+ "type": "input",+ "description": "Analog input channel 4; voltage range software-selectable from ±10V, ±5V, ±2.5V, 0-5V, or 0-10V."+ },+ {+ "number": "10",+ "name": "AIN3",+ "type": "input",+ "description": "Analog input channel 3; voltage range software-selectable from ±10V, ±5V, ±2.5V, 0-5V, or 0-10V."+ },+ {+ "number": "11",+ "name": "AIN2",+ "type": "input",+ "description": "Analog input channel 2; voltage range software-selectable from ±10V, ±5V, ±2.5V, 0-5V, or 0-10V."+ },+ {+ "number": "12",+ "name": "AIN1",+ "type": "input",+ "description": "Analog input channel 1; voltage range software-selectable from ±10V, ±5V, ±2.5V, 0-5V, or 0-10V."+ },+ {+ "number": "13",+ "name": "AIN0",+ "type": "input",+ "description": "Analog input channel 0; voltage range software-selectable from ±10V, ±5V, ±2.5V, 0-5V, or 0-10V."+ },+ {+ "number": "14",+ "name": "HVDD",+ "type": "power_in",+ "description": "High-voltage positive supply for multiplexer channels; range 5V to 15V with (HVDD - HVSS) restricted to 10V to 30V."+ },+ {+ "number": "15",+ "name": "HVSS",+ "type": "power_in",+ "description": "High-voltage negative supply for multiplexer channels; range -15V to 0V with (HVDD - HVSS) restricted to 10V to 30V."+ },+ {+ "number": "16",+ "name": "CS",+ "type": "input",+ "description": "Chip select digital input; active-low signal that controls frame synchronization and conversion start."+ },+ {+ "number": "17",+ "name": "SCLK",+ "type": "input",+ "description": "Serial clock input; maximum frequency 20MHz at DVDD = 3.3V; controls data shift timing and conversion."+ },+ {+ "number": "18",+ "name": "DIN",+ "type": "input",+ "description": "Serial data input; 16-bit command words latched on SCLK rising edges for device configuration and control."+ },+ {+ "number": "19",+ "name": "DOUT",+ "type": "tri_state",+ "description": "Serial data output; 16-bit conversion results or register data shifted out on SCLK falling edges; transitions to high-Z when CS is high."+ },+ {+ "number": "20",+ "name": "DGND",+ "type": "power_in",+ "description": "Digital ground connection for digital circuits."+ },+ {+ "number": "21",+ "name": "DVDD",+ "type": "power_in",+ "description": "Digital I/O power supply; supply voltage range 1.65V to 5.25V."+ },+ {+ "number": "22",+ "name": "AL_PD",+ "type": "bidirectional",+ "description": "Programmable pin functioning as active-high alarm output or active-low asynchronous power-down input; features internal pull-up to DVDD when configured as input."+ },+ {+ "number": "23",+ "name": "REFGND",+ "type": "power_in",+ "description": "Reference ground terminal; provides return path for external reference circuit or decoupling ground for internal reference."+ },+ {+ "number": "24",+ "name": "REF",+ "type": "input",+ "description": "Voltage reference input; accepts 2.0V to 3.0V external reference or serves as decoupling terminal for internal 2.5V precision reference."+ },+ {+ "number": "25",+ "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-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "exposed pad 25 added from the footprint"+ ],+ "pages_sent": 75,+ "cost_usd": 0.8323,+ "at": "2026-09-23T01:27:45"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/ads8638",+ "pages": 75,+ "sha256": "88befd8fff5977e4",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 25,+ "described": 25,+ "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]"+ }+}