← Commit history

Initial commit: component/ads1246ipwr

Ray ·a008b44a5f ·1mo ago
2 files changed +243
README.mdadded+52
@@ -0,0 +1,52 @@+# ADS1246IPWR++**Texas Instruments** · Analog To Digital Converters (ADC) · TSSOP-16++ADS1246IPWR from Texas Instruments, in a TSSOP-16. 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 | DVDD | power_in | Digital power supply voltage (2.7 to 5.25 V); connect 0.1-μF capacitor to DGND. |+| 2 | DGND | power_in | Digital ground reference for digital circuits and serial interface. |+| 3 | CLK | input | External clock input (1 to 4.5 MHz, 25-75% duty cycle); tie to DGND to activate internal oscillator. |+| 4 | RESET | input | Active-low reset input; device held in reset while pin is low, requires 0.6 ms for initialization after rising edge. |+| 5 | REFP | input | Positive external reference input (absolute voltage AVSS-0.1 to AVDD+0.1 V); differential reference voltage 0.5 to (AVDD-AVSS-1) V. |+| 6 | REFN | input | Negative external reference input (absolute voltage AVSS-0.1 to AVDD+0.1 V); negative reference voltage at least 0.5 V below positive reference. |+| 7 | AINP | input | Positive analog input to PGA (absolute voltage AVSS-0.1 to AVDD+0.1 V); differential input range ±VREF/Gain after PGA. |+| 8 | AINN | input | Negative analog input to PGA (absolute voltage AVSS-0.1 to AVDD+0.1 V); input impedance ~5 GΩ nominal. |+| 9 | AVSS | power_in | Negative analog power supply reference (-2.65 to 0.1 V relative to DGND); typically 0 V for unipolar or -2.5 V for bipolar supply. |+| 10 | AVDD | power_in | Positive analog power supply (2.7 to 5.25 V relative to AVSS); connect 0.1-μF capacitor to AVSS for decoupling. |+| 11 | START | input | Conversion start control; pulse high (minimum 3 tCLK) for single conversion or hold high for continuous conversion. |+| 12 | CS | input | Active-low chip select for SPI communication; resets serial interface when taken high; DRDY operation independent of CS. |+| 13 | DRDY | output | Active-low data ready output; transitions low when new 24-bit conversion result is available in output buffer. |+| 14 | DOUT/DRDY | output | Serial data output (MSB first on SCLK rising edge); functions as combined data output/ready when DRDY MODE bit = 1 in ID register (address 0Ah). |+| 15 | DIN | input | Serial data input (SPI mode 1: CPOL=0, CPHA=1); data shifted into device on SCLK falling edge. |+| 16 | SCLK | input | Serial clock input (SPI mode 1: CPOL=0, CPHA=1); minimum period tSCLK = 488 ns; data shifted on falling edges. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-16 |+| Category | Data Acquisition |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `ADS1246IPWR`+- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`+- 3D model: TSSOP-16 (KiCad packages3D, STEP)+- 3D model files: `ads1246ipwr-etched.step` / `ads1246ipwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ads1246ipwr.step` / `ads1246ipwr.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/ads1247) (104 pp, sha256 `08b29c91036dd059`, retrieved 2026-09-23, tier: lcsc)+- **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/ads1246ipwr-datasheet.pdf)
page.jsonadded+191
@@ -0,0 +1,191 @@+{+  "slug": "ads1246ipwr",+  "version": "0.1.0",+  "type": "component",+  "description": "Texas Instruments Analog To Digital Converters (ADC), TSSOP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "data acquisition",+    "ads1246ipwr",+    "factory-2.0.0",+    "extractor-text"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "ads1246ipwr.kicad_sym",+    "ads1246ipwr.kicad_mod",+    "ads1246ipwr.glb",+    "ads1246ipwr.step",+    "ads1246ipwr.lbr",+    "docs/hero.png",+    "docs/ads1246ipwr-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "component": {+    "mpn": "ADS1246IPWR",+    "manufacturer": "Texas Instruments",+    "package": "TSSOP-16",+    "pin_count": 16,+    "category": "Data Acquisition",+    "subcategory": "Analog To Digital Converters (ADC)",+    "datasheet": "https://www.ti.com/cn/lit/gpn/ads1247",+    "parts": {+      "symbol": "ads1246ipwr.kicad_sym",+      "footprint": "ads1246ipwr.kicad_mod",+      "model_3d": "ads1246ipwr-etched.glb",+      "model_3d_plain": "ads1246ipwr.glb",+      "model_3d_step": "ads1246ipwr-etched.step",+      "model_3d_step_plain": "ads1246ipwr.step",+      "lbr": "ads1246ipwr.lbr"+    },+    "distributor_links": {+      "lcsc": "C88010"+    },+    "pins": [+      {+        "number": "1",+        "name": "DVDD",+        "type": "power_in",+        "description": "Digital power supply voltage (2.7 to 5.25 V); connect 0.1-μF capacitor to DGND."+      },+      {+        "number": "2",+        "name": "DGND",+        "type": "power_in",+        "description": "Digital ground reference for digital circuits and serial interface."+      },+      {+        "number": "3",+        "name": "CLK",+        "type": "input",+        "description": "External clock input (1 to 4.5 MHz, 25-75% duty cycle); tie to DGND to activate internal oscillator."+      },+      {+        "number": "4",+        "name": "RESET",+        "type": "input",+        "description": "Active-low reset input; device held in reset while pin is low, requires 0.6 ms for initialization after rising edge."+      },+      {+        "number": "5",+        "name": "REFP",+        "type": "input",+        "description": "Positive external reference input (absolute voltage AVSS-0.1 to AVDD+0.1 V); differential reference voltage 0.5 to (AVDD-AVSS-1) V."+      },+      {+        "number": "6",+        "name": "REFN",+        "type": "input",+        "description": "Negative external reference input (absolute voltage AVSS-0.1 to AVDD+0.1 V); negative reference voltage at least 0.5 V below positive reference."+      },+      {+        "number": "7",+        "name": "AINP",+        "type": "input",+        "description": "Positive analog input to PGA (absolute voltage AVSS-0.1 to AVDD+0.1 V); differential input range ±VREF/Gain after PGA."+      },+      {+        "number": "8",+        "name": "AINN",+        "type": "input",+        "description": "Negative analog input to PGA (absolute voltage AVSS-0.1 to AVDD+0.1 V); input impedance ~5 GΩ nominal."+      },+      {+        "number": "9",+        "name": "AVSS",+        "type": "power_in",+        "description": "Negative analog power supply reference (-2.65 to 0.1 V relative to DGND); typically 0 V for unipolar or -2.5 V for bipolar supply."+      },+      {+        "number": "10",+        "name": "AVDD",+        "type": "power_in",+        "description": "Positive analog power supply (2.7 to 5.25 V relative to AVSS); connect 0.1-μF capacitor to AVSS for decoupling."+      },+      {+        "number": "11",+        "name": "START",+        "type": "input",+        "description": "Conversion start control; pulse high (minimum 3 tCLK) for single conversion or hold high for continuous conversion."+      },+      {+        "number": "12",+        "name": "CS",+        "type": "input",+        "description": "Active-low chip select for SPI communication; resets serial interface when taken high; DRDY operation independent of CS."+      },+      {+        "number": "13",+        "name": "DRDY",+        "type": "output",+        "description": "Active-low data ready output; transitions low when new 24-bit conversion result is available in output buffer."+      },+      {+        "number": "14",+        "name": "DOUT/DRDY",+        "type": "output",+        "description": "Serial data output (MSB first on SCLK rising edge); functions as combined data output/ready when DRDY MODE bit = 1 in ID register (address 0Ah)."+      },+      {+        "number": "15",+        "name": "DIN",+        "type": "input",+        "description": "Serial data input (SPI mode 1: CPOL=0, CPHA=1); data shifted into device on SCLK falling edge."+      },+      {+        "number": "16",+        "name": "SCLK",+        "type": "input",+        "description": "Serial clock input (SPI mode 1: CPOL=0, CPHA=1); minimum period tSCLK = 488 ns; data shifted on falling edges."+      }+    ],+    "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": [+          "extractor flagged: DOUT/DRDY pin (pin 14) functions as either serial data output only (DRDY MODE bit = 0) or combined d; External reference is mandatory for ADS1246; differential reference voltage must be 0.5 to (AVDD-AVS; PGA common-mode input voltage requirements (Equation 3: VCM range depends on gain, input signal ampl"+        ],+        "pages_sent": 104,+        "cost_usd": 1.0315,+        "at": "2026-09-23T09:27:57"+      },+      "datasheet": {+        "url": "https://www.ti.com/cn/lit/gpn/ads1247",+        "pages": 104,+        "sha256": "08b29c91036dd059",+        "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"+    }+  },+  "visibility": "public",+  "org": "adom",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file