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ADS131M08IPBSR
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Texas Instruments Analog To Digital Converters (ADC), TQFP-32(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+69@@ -0,0 +1,69 @@+# ADS131M08IPBSR++**Texas Instruments** · Analog To Digital Converters (ADC) · TQFP-32(5x5)++ADS131M08IPBSR from Texas Instruments, in a TQFP-32(5x5). 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 | AIN2P | input | Positive differential analog input for channel 2; supports absolute voltage range from AGND - 1.3V to AVDD. |+| 2 | AIN2N | input | Negative differential analog input for channel 2; completes differential pair with AIN2P. |+| 3 | AIN3N | input | Negative differential analog input for channel 3; completes differential pair with AIN3P. |+| 4 | AIN3P | input | Positive differential analog input for channel 3; supports absolute voltage range from AGND - 1.3V to AVDD. |+| 5 | AIN4P | input | Positive differential analog input for channel 4; supports absolute voltage range from AGND - 1.3V to AVDD. |+| 6 | AIN4N | input | Negative differential analog input for channel 4; completes differential pair with AIN4P. |+| 7 | AIN5N | input | Negative differential analog input for channel 5; completes differential pair with AIN5P. |+| 8 | AIN5P | input | Positive differential analog input for channel 5; supports absolute voltage range from AGND - 1.3V to AVDD. |+| 9 | AIN6P | input | Positive differential analog input for channel 6; supports absolute voltage range from AGND - 1.3V to AVDD. |+| 10 | AIN6N | input | Negative differential analog input for channel 6; completes differential pair with AIN6P. |+| 11 | AIN7N | input | Negative differential analog input for channel 7; completes differential pair with AIN7P. |+| 12 | AIN7P | input | Positive differential analog input for channel 7; supports absolute voltage range from AGND - 1.3V to AVDD. |+| 13 | AGND | power_in | Analog ground reference; integrated negative charge pump allows input voltages 1.3V below AGND. |+| 14 | REFIN | input | External reference voltage input rated 1.1V to 1.3V nominal; do not place capacitance on this pin if current-detect mode is used. |+| 15 | AVDD | power_in | Analog power supply 2.7V to 3.6V; connect 1µF capacitor to AGND. |+| 16 | SYNC/RESET | input | Dual-function active-low input for device reset (pulse duration >2048 tCLKIN) or conversion synchronization (pulse 1 to 2047 tCLKIN). |+| 17 | CS | input | Chip select active-low digital input; device ignores SPI communication when CS is high and DOUT assumes high impedance. |+| 18 | DRDY | output | Data ready active-low digital output indicating new conversion data available; configurable as level or pulse via MODE register. |+| 19 | SCLK | input | Serial data clock input for SPI mode 1 (CPOL=0, CPHA=1); data latched on falling edges. |+| 20 | DOUT | output | Serial data output (MISO) providing status word, 8 channels of 24-bit conversion data, and CRC; high impedance when CS is high. |+| 21 | DIN | input | Serial data input (MOSI) for SPI commands and register writes; latched on SCLK falling edges per SPI mode 1. |+| 22 | XTAL2 | output | Crystal oscillator excitation output for external crystal; leave unconnected when using external clock on XTAL1/CLKIN. |+| 23 | XTAL1/CLKIN | input | Master clock input 0.3MHz to 8.4MHz for high-resolution mode or crystal oscillator input; must be synchronous with SCLK. |+| 24 | CAP | power_out | Digital LDO regulator output 1.8V nominal; connect 220nF capacitor to DGND when DVDD >2.7V, or tie to DVDD when DVDD ≤2V. |+| 25 | DGND | power_in | Digital ground reference; connect analog and digital ground planes near device. |+| 26 | DVDD | power_in | Digital power supply 2.7V to 3.6V; connect 1µF capacitor to DGND. |+| 27 | NC | unconnected | No connection pin; leave unconnected or connect to AGND. |+| 28 | AGND | power_in | Analog ground reference; integrated negative charge pump allows input voltages 1.3V below AGND. |+| 29 | AIN0P | input | Positive differential analog input for channel 0; supports absolute voltage range from AGND - 1.3V to AVDD. |+| 30 | AIN0N | input | Negative differential analog input for channel 0; completes differential pair with AIN0P. |+| 31 | AIN1N | input | Negative differential analog input for channel 1; completes differential pair with AIN1P. |+| 32 | AIN1P | input | Positive differential analog input for channel 1; supports absolute voltage range from AGND - 1.3V to AVDD. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TQFP-32(5x5) |+| Category | Data Acquisition |+| Pins | 32 |++## CAD (KiCad official)++- Symbol: `ADS131M08IPBSR`+- Footprint: `Package_QFP:TQFP-32_5x5mm_P0.5mm`+- 3D model: TQFP-32(5x5), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 1.1 mm nominal TQFP height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)+- 3D model files: `ads131m08ipbsr-etched.step` / `ads131m08ipbsr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ads131m08ipbsr.step` / `ads131m08ipbsr.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/ads131m08) (119 pp, sha256 `b5b15a08a7950103`, retrieved 2026-10-01, 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-4-6` (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/ads131m08ipbsr-datasheet.pdf)
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supports absolute voltage range from AGND - 1.3V to AVDD."+ },+ {+ "number": "2",+ "name": "AIN2N",+ "type": "input",+ "description": "Negative differential analog input for channel 2; completes differential pair with AIN2P."+ },+ {+ "number": "3",+ "name": "AIN3N",+ "type": "input",+ "description": "Negative differential analog input for channel 3; completes differential pair with AIN3P."+ },+ {+ "number": "4",+ "name": "AIN3P",+ "type": "input",+ "description": "Positive differential analog input for channel 3; supports absolute voltage range from AGND - 1.3V to AVDD."+ },+ {+ "number": "5",+ "name": "AIN4P",+ "type": "input",+ "description": "Positive differential analog input for channel 4; supports absolute voltage range from AGND - 1.3V to AVDD."+ },+ {+ "number": "6",+ "name": "AIN4N",+ "type": "input",+ "description": "Negative differential analog input for channel 4; completes differential pair with AIN4P."+ },+ {+ "number": "7",+ "name": "AIN5N",+ "type": "input",+ "description": "Negative differential analog input for channel 5; completes differential pair with AIN5P."+ },+ {+ "number": "8",+ "name": "AIN5P",+ "type": "input",+ "description": "Positive differential analog input for channel 5; supports absolute voltage range from AGND - 1.3V to AVDD."+ },+ {+ "number": "9",+ "name": "AIN6P",+ "type": "input",+ "description": "Positive differential analog input for channel 6; supports absolute voltage range from AGND - 1.3V to AVDD."+ },+ {+ "number": "10",+ "name": "AIN6N",+ "type": "input",+ "description": "Negative differential analog input for channel 6; completes differential pair with AIN6P."+ },+ {+ "number": "11",+ "name": "AIN7N",+ "type": "input",+ "description": "Negative differential analog input for channel 7; completes differential pair with AIN7P."+ },+ {+ "number": "12",+ "name": "AIN7P",+ "type": "input",+ "description": "Positive differential analog input for channel 7; supports absolute voltage range from AGND - 1.3V to AVDD."+ },+ {+ "number": "13",+ "name": "AGND",+ "type": "power_in",+ "description": "Analog ground reference; integrated negative charge pump allows input voltages 1.3V below AGND."+ },+ {+ "number": "14",+ "name": "REFIN",+ "type": "input",+ "description": "External reference voltage input rated 1.1V to 1.3V nominal; do not place capacitance on this pin if current-detect mode is used."+ },+ {+ "number": "15",+ "name": "AVDD",+ "type": "power_in",+ "description": "Analog power supply 2.7V to 3.6V; connect 1µF capacitor to AGND."+ },+ {+ "number": "16",+ "name": "SYNC/RESET",+ "type": "input",+ "description": "Dual-function active-low input for device reset (pulse duration >2048 tCLKIN) or conversion synchronization (pulse 1 to 2047 tCLKIN)."+ },+ {+ "number": "17",+ "name": "CS",+ "type": "input",+ "description": "Chip select active-low digital input; device ignores SPI communication when CS is high and DOUT assumes high impedance."+ },+ {+ "number": "18",+ "name": "DRDY",+ "type": "output",+ "description": "Data ready active-low digital output indicating new conversion data available; configurable as level or pulse via MODE register."+ },+ {+ "number": "19",+ "name": "SCLK",+ "type": "input",+ "description": "Serial data clock input for SPI mode 1 (CPOL=0, CPHA=1); data latched on falling edges."+ },+ {+ "number": "20",+ "name": "DOUT",+ "type": "output",+ "description": "Serial data output (MISO) providing status word, 8 channels of 24-bit conversion data, and CRC; high impedance when CS is high."+ },+ {+ "number": "21",+ "name": "DIN",+ "type": "input",+ "description": "Serial data input (MOSI) for SPI commands and register writes; latched on SCLK falling edges per SPI mode 1."+ },+ {+ "number": "22",+ "name": "XTAL2",+ "type": "output",+ "description": "Crystal oscillator excitation output for external crystal; leave unconnected when using external clock on XTAL1/CLKIN."+ },+ {+ "number": "23",+ "name": "XTAL1/CLKIN",+ "type": "input",+ "description": "Master clock input 0.3MHz to 8.4MHz for high-resolution mode or crystal oscillator input; must be synchronous with SCLK."+ },+ {+ "number": "24",+ "name": "CAP",+ "type": "power_out",+ "description": "Digital LDO regulator output 1.8V nominal; connect 220nF capacitor to DGND when DVDD >2.7V, or tie to DVDD when DVDD ≤2V."+ },+ {+ "number": "25",+ "name": "DGND",+ "type": "power_in",+ "description": "Digital ground reference; connect analog and digital ground planes near device."+ },+ {+ "number": "26",+ "name": "DVDD",+ "type": "power_in",+ "description": "Digital power supply 2.7V to 3.6V; connect 1µF capacitor to DGND."+ },+ {+ "number": "27",+ "name": "NC",+ "type": "unconnected",+ "description": "No connection pin; leave unconnected or connect to AGND."+ },+ {+ "number": "28",+ "name": "AGND",+ "type": "power_in",+ "description": "Analog ground reference; integrated negative charge pump allows input voltages 1.3V below AGND."+ },+ {+ "number": "29",+ "name": "AIN0P",+ "type": "input",+ "description": "Positive differential analog input for channel 0; supports absolute voltage range from AGND - 1.3V to AVDD."+ },+ {+ "number": "30",+ "name": "AIN0N",+ "type": "input",+ "description": "Negative differential analog input for channel 0; completes differential pair with AIN0P."+ },+ {+ "number": "31",+ "name": "AIN1N",+ "type": "input",+ "description": "Negative differential analog input for channel 1; completes differential pair with AIN1P."+ },+ {+ "number": "32",+ "name": "AIN1P",+ "type": "input",+ "description": "Positive differential analog input for channel 1; supports absolute voltage range from AGND - 1.3V to AVDD."+ }+ ],+ "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-4-6",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 119,+ "cost_usd": 0.858,+ "at": "2026-10-01T17:43:58"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/ads131m08",+ "pages": 119,+ "sha256": "b5b15a08a7950103",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 32,+ "described": 32,+ "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]"+ }+}