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ADS7254IRTER
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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 @@+# ADS7254IRTER++**Texas Instruments** · Analog To Digital Converters (ADC) · WQFN-16-EP(3x3)++ADS7254IRTER from Texas Instruments, in a WQFN-16-EP(3x3). 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 | REFIO_A | bidirectional | Reference voltage input/output for channel A, which the datasheet describes as a buffered 2.5 V internal reference that can be programmed through REFDAC_A. |+| 2 | REFGND_A | power_in | Reference ground potential for channel A; REFGND_x must stay within 0.3 V of GND. |+| 3 | REFGND_B | power_in | Reference ground potential for channel B; REFGND_x must stay within 0.3 V of GND. |+| 4 | REFIO_B | bidirectional | Reference voltage input/output for channel B, which the datasheet describes as a buffered 2.5 V internal reference that can be programmed through REFDAC_B. |+| 5 | AINM_B | input | Negative analog input for channel B; analog inputs are limited to REFGND_x - 0.3 V to AVDD + 0.3 V. |+| 6 | AINP_B | input | Positive analog input for channel B; analog inputs are limited to REFGND_x - 0.3 V to AVDD + 0.3 V. |+| 7 | DVDD | power_in | Digital I/O supply, 3.3 V nominal per the recommended operating conditions; AVDD to REFGND_x or DVDD to GND is rated -0.3 V to 6 V. |+| 8 | SDI | input | Data input for the serial interface; digital inputs are limited to GND - 0.3 V to DVDD + 0.3 V. |+| 9 | CS | input | Active-low chip-select for the serial interface; a CS falling edge brings the serial data bus out of 3-state. |+| 10 | SCLK | input | Serial communication clock input that drives conversions and data transfer in the selected interface mode. |+| 11 | SDO_A | output | Serial data output for channel A (and channel B in single-SDO mode); the pin is 3-stated when CS is high. |+| 12 | SDO_B | output | Serial data output for channel B; the pin is 3-stated when CS is high and outputs 0s in the 32-CLK dual-SDO readback frame. |+| 13 | GND | power_in | Digital ground for the device. |+| 14 | AVDD | power_in | Analog supply for ADC operation, 5 V nominal per the recommended operating conditions; AVDD to REFGND_x is rated -0.3 V to 6 V. |+| 15 | AINP_A | input | Positive analog input for channel A; analog inputs are limited to REFGND_x - 0.3 V to AVDD + 0.3 V. |+| 16 | AINM_A | input | Negative analog input for channel A; analog inputs are limited to REFGND_x - 0.3 V to AVDD + 0.3 V. |+| 17 | Thermal Pad | 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: `ADS7254IRTER`+- 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: `ads7254irter-etched.step` / `ads7254irter-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ads7254irter.step` / `ads7254irter.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/ads8354) (74 pp, sha256 `9dc9513f58274162`, 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/ads7254irter-datasheet.pdf)
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REFGND_x must stay within 0.3 V of GND."+ },+ {+ "number": "3",+ "name": "REFGND_B",+ "type": "power_in",+ "description": "Reference ground potential for channel B; REFGND_x must stay within 0.3 V of GND."+ },+ {+ "number": "4",+ "name": "REFIO_B",+ "type": "bidirectional",+ "description": "Reference voltage input/output for channel B, which the datasheet describes as a buffered 2.5 V internal reference that can be programmed through REFDAC_B."+ },+ {+ "number": "5",+ "name": "AINM_B",+ "type": "input",+ "description": "Negative analog input for channel B; analog inputs are limited to REFGND_x - 0.3 V to AVDD + 0.3 V."+ },+ {+ "number": "6",+ "name": "AINP_B",+ "type": "input",+ "description": "Positive analog input for channel B; analog inputs are limited to REFGND_x - 0.3 V to AVDD + 0.3 V."+ },+ {+ "number": "7",+ "name": "DVDD",+ "type": "power_in",+ "description": "Digital I/O supply, 3.3 V nominal per the recommended operating conditions; AVDD to REFGND_x or DVDD to GND is rated -0.3 V to 6 V."+ },+ {+ "number": "8",+ "name": "SDI",+ "type": "input",+ "description": "Data input for the serial interface; digital inputs are limited to GND - 0.3 V to DVDD + 0.3 V."+ },+ {+ "number": "9",+ "name": "CS",+ "type": "input",+ "description": "Active-low chip-select for the serial interface; a CS falling edge brings the serial data bus out of 3-state."+ },+ {+ "number": "10",+ "name": "SCLK",+ "type": "input",+ "description": "Serial communication clock input that drives conversions and data transfer in the selected interface mode."+ },+ {+ "number": "11",+ "name": "SDO_A",+ "type": "output",+ "description": "Serial data output for channel A (and channel B in single-SDO mode); the pin is 3-stated when CS is high."+ },+ {+ "number": "12",+ "name": "SDO_B",+ "type": "output",+ "description": "Serial data output for channel B; the pin is 3-stated when CS is high and outputs 0s in the 32-CLK dual-SDO readback frame."+ },+ {+ "number": "13",+ "name": "GND",+ "type": "power_in",+ "description": "Digital ground for the device."+ },+ {+ "number": "14",+ "name": "AVDD",+ "type": "power_in",+ "description": "Analog supply for ADC operation, 5 V nominal per the recommended operating conditions; AVDD to REFGND_x is rated -0.3 V to 6 V."+ },+ {+ "number": "15",+ "name": "AINP_A",+ "type": "input",+ "description": "Positive analog input for channel A; analog inputs are limited to REFGND_x - 0.3 V to AVDD + 0.3 V."+ },+ {+ "number": "16",+ "name": "AINM_A",+ "type": "input",+ "description": "Negative analog input for channel A; analog inputs are limited to REFGND_x - 0.3 V to AVDD + 0.3 V."+ },+ {+ "number": "17",+ "name": "Thermal Pad",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "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 WQFN thermal exposed pad is listed in the pin table on page 5 as 'Thermal Pad' (supply pad to be; Pin numbers are the WQFN column of the page 5 table (the datasheet's RTE package). The pin table lis; The datasheet pin table gives no electrical type for the pins. Types were assigned from the I/O colu",+ "exposed pad 17 added from the footprint"+ ],+ "pages_sent": 18,+ "cost_usd": 0.0918,+ "at": "2026-10-08T01:15:05"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/ads8354",+ "pages": 74,+ "sha256": "9dc9513f58274162",+ "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"+ },+ "models_3d": [+ {+ "file": "ads7254irter.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 3,+ 3,+ 0.785+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "3eb81ffac423a66cdcfead8efe56401da171edaf1f2257049aad7b2d3900f6c8",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "ads7254irter-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 3,+ 3,+ 0.785+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "4992d955e3784394524ddc1e7f65d010cdca96affc9b527f5026964d64307132",+ "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]"+ }+}