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ADS7946SRTER
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Texas Instruments Analog To Digital Converters (ADC), WQFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+54@@ -0,0 +1,54 @@+# ADS7946SRTER++**Texas Instruments** · Analog To Digital Converters (ADC) · WQFN-16-EP(3x3)++ADS7946SRTER from Texas Instruments, in a WQFN-16-EP(3x3). 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 | GND | power_in | Analog and digital power supply ground; all analog and digital signals are referred with respect to this pin. |+| 2 | AVDD | power_in | Analog ADC power supply voltage, rated 2.7 V to 5.25 V. |+| 3 | REF | input | ADC positive reference input; decouple this pin with REFGND, external reference range 2.5 V to AVDD. |+| 4 | REFGND | power_in | Reference return ground; short to analog ground plane. |+| 5 | AIN0 | input | Positive analog input, channel 0, absolute input range -0.2 V to AVDD + 0.2 V. |+| 6 | AIN0GND | input | Ground sense analog input, channel 0, absolute input range -0.2 V to +0.2 V. |+| 7 | AIN1GND | input | Ground sense analog input, channel 1, absolute input range -0.2 V to +0.2 V. |+| 8 | AIN1 | input | Positive analog input, channel 1, absolute input range -0.2 V to AVDD + 0.2 V. |+| 9 | NC | unconnected | Not connected internally; it is recommended to externally short this pin to GND. |+| 10 | NC | unconnected | Not connected internally; it is recommended to externally short this pin to GND. |+| 11 | CH SEL | input | Channel select digital input; low = Channel 0, high = Channel 1; recommended to change within one clock window after CS falling edge. |+| 12 | PDEN | input | Power-down enable digital input, active high at CS rising edge. |+| 13 | CS | input | Chip select digital input signal, active low. |+| 14 | SCLK | input | Serial SPI clock digital input, maximum frequency 40 MHz. |+| 15 | SDO | tri_state | Serial data out tri-state digital output, 20 pF load, VOH = 0.8×DVDD, VOL = 0.2×DVDD. |+| 16 | DVDD | power_in | Digital I/O power supply voltage, rated 1.65 V to AVDD. |+| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | WQFN-16-EP(3x3) |+| Category | Data Acquisition |+| Pins | 17 |++## CAD (KiCad official)++- Symbol: `ADS7946SRTER`+- Footprint: `Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm`+- 3D model: WQFN-16-EP(3x3) (KiCad packages3D, STEP)+- 3D model files: `ads7946srter-etched.step` / `ads7946srter-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ads7946srter.step` / `ads7946srter.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/ads7946) (51 pp, sha256 `93ea910861603d86`, 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/ads7946srter-datasheet.pdf)
page.jsonadded+197@@ -0,0 +1,197 @@+{+ "slug": "ads7946srter",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Analog To Digital Converters (ADC), WQFN-16-EP(3x3). Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "data acquisition",+ "ads7946srter",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ads7946srter.kicad_sym",+ "ads7946srter.kicad_mod",+ "ads7946srter.glb",+ "ads7946srter.step",+ "ads7946srter.lbr",+ "docs/hero.png",+ "docs/ads7946srter-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "ADS7946SRTER",+ "manufacturer": "Texas Instruments",+ "package": "WQFN-16-EP(3x3)",+ "pin_count": 17,+ "category": "Data Acquisition",+ "subcategory": "Analog To Digital Converters (ADC)",+ "datasheet": "https://www.ti.com/cn/lit/gpn/ads7946",+ "parts": {+ "symbol": "ads7946srter.kicad_sym",+ "footprint": "ads7946srter.kicad_mod",+ "model_3d": "ads7946srter-etched.glb",+ "model_3d_plain": "ads7946srter.glb",+ "model_3d_step": "ads7946srter-etched.step",+ "model_3d_step_plain": "ads7946srter.step",+ "lbr": "ads7946srter.lbr"+ },+ "distributor_links": {+ "lcsc": "C2651353"+ },+ "pins": [+ {+ "number": "1",+ "name": "GND",+ "type": "power_in",+ "description": "Analog and digital power supply ground; all analog and digital signals are referred with respect to this pin."+ },+ {+ "number": "2",+ "name": "AVDD",+ "type": "power_in",+ "description": "Analog ADC power supply voltage, rated 2.7 V to 5.25 V."+ },+ {+ "number": "3",+ "name": "REF",+ "type": "input",+ "description": "ADC positive reference input; decouple this pin with REFGND, external reference range 2.5 V to AVDD."+ },+ {+ "number": "4",+ "name": "REFGND",+ "type": "power_in",+ "description": "Reference return ground; short to analog ground plane."+ },+ {+ "number": "5",+ "name": "AIN0",+ "type": "input",+ "description": "Positive analog input, channel 0, absolute input range -0.2 V to AVDD + 0.2 V."+ },+ {+ "number": "6",+ "name": "AIN0GND",+ "type": "input",+ "description": "Ground sense analog input, channel 0, absolute input range -0.2 V to +0.2 V."+ },+ {+ "number": "7",+ "name": "AIN1GND",+ "type": "input",+ "description": "Ground sense analog input, channel 1, absolute input range -0.2 V to +0.2 V."+ },+ {+ "number": "8",+ "name": "AIN1",+ "type": "input",+ "description": "Positive analog input, channel 1, absolute input range -0.2 V to AVDD + 0.2 V."+ },+ {+ "number": "9",+ "name": "NC",+ "type": "unconnected",+ "description": "Not connected internally; it is recommended to externally short this pin to GND."+ },+ {+ "number": "10",+ "name": "NC",+ "type": "unconnected",+ "description": "Not connected internally; it is recommended to externally short this pin to GND."+ },+ {+ "number": "11",+ "name": "CH SEL",+ "type": "input",+ "description": "Channel select digital input; low = Channel 0, high = Channel 1; recommended to change within one clock window after CS falling edge."+ },+ {+ "number": "12",+ "name": "PDEN",+ "type": "input",+ "description": "Power-down enable digital input, active high at CS rising edge."+ },+ {+ "number": "13",+ "name": "CS",+ "type": "input",+ "description": "Chip select digital input signal, active low."+ },+ {+ "number": "14",+ "name": "SCLK",+ "type": "input",+ "description": "Serial SPI clock digital input, maximum frequency 40 MHz."+ },+ {+ "number": "15",+ "name": "SDO",+ "type": "tri_state",+ "description": "Serial data out tri-state digital output, 20 pF load, VOH = 0.8×DVDD, VOL = 0.2×DVDD."+ },+ {+ "number": "16",+ "name": "DVDD",+ "type": "power_in",+ "description": "Digital I/O power supply voltage, rated 1.65 V to AVDD."+ },+ {+ "number": "17",+ "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 17 added from the footprint"+ ],+ "pages_sent": 51,+ "cost_usd": 0.4134,+ "at": "2026-09-23T18:03:55"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/ads7946",+ "pages": 51,+ "sha256": "93ea910861603d86",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 17,+ "described": 17,+ "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]"+ }+}