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ADS1242IPWT
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Texas Instruments Analog To Digital Converters (ADC), TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+52@@ -0,0 +1,52 @@+# ADS1242IPWT++**Texas Instruments** · Analog To Digital Converters (ADC) · TSSOP-16++ADS1242IPWT from Texas Instruments, in a TSSOP-16. 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 | VDD | power_in | Power supply, 2.7V to 5.25V supply range; absolute maximum VDD to GND is -0.3V to +6V. |+| 2 | XIN | input | Clock input; master clock rate is 1 to 5 MHz, and VIL for XIN is GND to GND + 0.05V. |+| 3 | XOUT | output | Clock output, used with a crystal or ceramic resonator. |+| 4 | PDWN | input | Active LOW power-down input; the power-down function shuts down the analog and digital circuits. |+| 5 | VREF+ | power_in | Positive differential reference input; reference input range is 0 to VDD, with VREF (REF IN+ minus REF IN-) of 0.1V to 1.25V (1.30V max) for RANGE = 0. |+| 6 | VREF- | power_in | Negative differential reference input; reference input range is 0 to VDD. |+| 7 | AIN0/D0 | bidirectional | Analog input 0 / data I/O 0; analog input range is GND - 0.1V to VDD + 0.1V with buffer OFF and GND + 0.05V to VDD - 1.5V with buffer ON, and the pin can be used as data input or output. |+| 8 | AIN1/D1 | bidirectional | Analog input 1 / data I/O 1; analog input range is GND - 0.1V to VDD + 0.1V with buffer OFF and GND + 0.05V to VDD - 1.5V with buffer ON, and the pin can be used as data input or output. |+| 9 | AIN2/D2 | bidirectional | Analog input 2 / data I/O 2; analog input range is GND - 0.1V to VDD + 0.1V with buffer OFF and GND + 0.05V to VDD - 1.5V with buffer ON, and the pin can be used as data input or output. |+| 10 | AIN3/D3 | bidirectional | Analog input 3 / data I/O 3; analog input range is GND - 0.1V to VDD + 0.1V with buffer OFF and GND + 0.05V to VDD - 1.5V with buffer ON, and the pin can be used as data input or output. |+| 11 | GND | power_in | Ground reference for the device. |+| 12 | CS | input | Active LOW chip select; DOUT goes tri-state immediately when CS goes HIGH. |+| 13 | DIN | input | Serial data input with Schmitt trigger input. |+| 14 | DOUT | output | Serial data output; goes tri-state immediately when CS goes HIGH. |+| 15 | SCLK | input | Serial clock input with Schmitt trigger input. |+| 16 | DRDY | output | Active LOW data-ready output. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-16 |+| Category | Data Acquisition |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `ADS1242IPWT`+- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`+- 3D model: TSSOP-16 (KiCad packages3D, STEP)+- 3D model files: `ads1242ipwt-etched.step` / `ads1242ipwt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ads1242ipwt.step` / `ads1242ipwt.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/ads1243) (34 pp, sha256 `0bf7c17072b2c943`, retrieved 2026-10-08, tier: lcsc)+- **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/ads1242ipwt-datasheet.pdf)
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The datasheet does ; Pin descriptions for XIN, XOUT, PDWN, VREF+/VREF-, CS, DIN, DOUT, SCLK and DRDY are taken from the d"+ ],+ "pages_sent": 9,+ "cost_usd": 0.0602,+ "at": "2026-10-08T19:44:19"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/ads1243",+ "pages": 34,+ "sha256": "0bf7c17072b2c943",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 16,+ "described": 16,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "ads1242ipwt.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6.4,+ 5,+ 1.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "ads1242ipwt-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6.4,+ 5,+ 1.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "9ccba277b6d495d9fbcce5a952e7d638b9f10e39045133ba65245ffdb191cbe5",+ "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]"+ }+}