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DAC81408RHAR
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Texas Instruments Digital To Analog Converters (DAC), QFN-40-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+77@@ -0,0 +1,77 @@+# DAC81408RHAR++**Texas Instruments** · Digital To Analog Converters (DAC) · QFN-40-EP(6x6)++DAC81408RHAR from Texas Instruments, in a QFN-40-EP(6x6). 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 | NC | unconnected | No connection. |+| 2 | NC | unconnected | No connection. |+| 3 | NC | unconnected | No connection. |+| 4 | NC | unconnected | No connection. |+| 5 | OUT0 | output | Analog DAC output voltage for channel 0, can sink or source up to 25 mA. |+| 6 | OUT1 | output | Analog DAC output voltage for channel 1, can sink or source up to 25 mA. |+| 7 | OUT2 | output | Analog DAC output voltage for channel 2, can sink or source up to 25 mA. |+| 8 | OUT3 | output | Analog DAC output voltage for channel 3, can sink or source up to 25 mA. |+| 9 | VIO | power_in | IO supply voltage from 1.7 V to 5.5 V, sets the I/O operating voltage for the device. |+| 10 | GND | power_in | Ground reference point for all circuitry on the device. |+| 11 | SDO | output | Serial interface data output, enabled by SDO-EN bit, clocked out on rising or falling edge of SCLK as specified by FSDO bit. |+| 12 | SCLK | input | Serial interface clock input. |+| 13 | SDI | input | Serial interface data input, clocked in on each falling edge of SCLK. |+| 14 | CS | input | Active low chip select, frame synchronization signal for serial interface. |+| 15 | TOGGLE0 | input | Toggle control pin for DAC outputs configured for toggle operation, logic low selects Register A, high selects Register B. |+| 16 | TOGGLE1 | input | Toggle control pin for DAC outputs configured for toggle operation, logic low selects Register A, high selects Register B. |+| 17 | TOGGLE2 | input | Toggle control pin for DAC outputs configured for toggle operation, logic low selects Register A, high selects Register B. |+| 18 | LDAC | input | Active low load DAC signal, updates synchronous mode channels when low. |+| 19 | RESET | input | Active low reset input, minimum 500 ns pulse causes power-on-reset event. |+| 20 | CLR | input | Active low clear input, clears all DAC outputs to their clear code. |+| 21 | ALMOUT | tri_state | Open drain alarm output, requires external 10-kΩ pull-up resistor to VIO or lower. |+| 22 | TEMPOUT | output | Analog temperature monitor output with -4 mV/°C slope and 1.34 V offset. |+| 23 | OUT4 | output | Analog DAC output voltage for channel 4, can sink or source up to 25 mA. |+| 24 | OUT5 | output | Analog DAC output voltage for channel 5, can sink or source up to 25 mA. |+| 25 | OUT6 | output | Analog DAC output voltage for channel 6, can sink or source up to 25 mA. |+| 26 | OUT7 | output | Analog DAC output voltage for channel 7, can sink or source up to 25 mA. |+| 27 | NC | unconnected | No connection. |+| 28 | NC | unconnected | No connection. |+| 29 | NC | unconnected | No connection. |+| 30 | NC | unconnected | No connection. |+| 31 | VCC | power_in | Output positive analog power supply, 9 V to 41.5 V. |+| 32 | VSS | power_in | Output negative analog power supply, -21.5 V to 0 V. |+| 33 | REF | bidirectional | Reference input for external reference mode or reference output for internal reference mode, connect 150-nF capacitor to ground. |+| 34 | REFCMP | passive | Reference compensation capacitor connection, connect 330-pF capacitor between REFCMP and REFGND. |+| 35 | REFGND | power_in | Ground reference point for the internal reference circuit. |+| 36 | GND | power_in | Ground reference point for all circuitry on the device. |+| 37 | VAA | power_in | Analog supply voltage, 4.5 V to 5.5 V, must be at same potential as VDD. |+| 38 | VDD | power_in | Digital supply voltage, 4.5 V to 5.5 V, must be at same potential as VAA. |+| 39 | VSS | power_in | Output negative analog power supply, -21.5 V to 0 V. |+| 40 | VCC | power_in | Output positive analog power supply, 9 V to 41.5 V. |+| 41 | THERMAL PAD | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | QFN-40-EP(6x6) |+| Category | Data Acquisition |+| Pins | 41 |++## CAD (KiCad official)++- Symbol: `DAC81408RHAR`+- Footprint: `Package_DFN_QFN:QFN-40-1EP_6x6mm_P0.5mm_EP4.6x4.6mm`+- 3D model: QFN-40-EP(6x6) (KiCad packages3D, STEP)+- 3D model files: `dac81408rhar-etched.step` / `dac81408rhar-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dac81408rhar.step` / `dac81408rhar.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/dac71408) (57 pp, sha256 `e7e735c17754d8c0`, retrieved 2026-10-05, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/dac81408rhar-datasheet.pdf)
page.jsonadded+359@@ -0,0 +1,359 @@+{+ "slug": "dac81408rhar",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Digital To Analog Converters (DAC), QFN-40-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "data acquisition",+ "dac81408rhar",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "dac81408rhar.kicad_sym",+ "dac81408rhar.kicad_mod",+ "dac81408rhar.glb",+ "dac81408rhar.step",+ "dac81408rhar.lbr",+ "docs/hero.png",+ "docs/dac81408rhar-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "dac81408rhar-hero.glb",+ "dac81408rhar-hero.overlay.json"+ ],+ "component": {+ "mpn": "DAC81408RHAR",+ "manufacturer": "Texas Instruments",+ "package": "QFN-40-EP(6x6)",+ "pin_count": 41,+ "category": "Data Acquisition",+ "subcategory": "Digital To Analog Converters (DAC)",+ "datasheet": "https://www.ti.com/cn/lit/gpn/dac71408",+ "parts": {+ "symbol": "dac81408rhar.kicad_sym",+ "footprint": "dac81408rhar.kicad_mod",+ "model_3d": "dac81408rhar-hero.glb",+ "model_3d_plain": "dac81408rhar.glb",+ "model_3d_step": "dac81408rhar-etched.step",+ "model_3d_step_plain": "dac81408rhar.step",+ "lbr": "dac81408rhar.lbr"+ },+ "distributor_links": {+ "lcsc": 2680134,+ "digikey": "296-DAC81408RHARTR-ND",+ "mouser": "595-DAC81408RHAR"+ },+ "distributor_check": {+ "checked_at": "2026-10-05T23:40:55Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-DAC81408RHARTR-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-DAC81408RHAR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "NC",+ "type": "unconnected",+ "description": "No connection."+ },+ {+ "number": "2",+ "name": "NC",+ "type": "unconnected",+ "description": "No connection."+ },+ {+ "number": "3",+ "name": "NC",+ "type": "unconnected",+ "description": "No connection."+ },+ {+ "number": "4",+ "name": "NC",+ "type": "unconnected",+ "description": "No connection."+ },+ {+ "number": "5",+ "name": "OUT0",+ "type": "output",+ "description": "Analog DAC output voltage for channel 0, can sink or source up to 25 mA."+ },+ {+ "number": "6",+ "name": "OUT1",+ "type": "output",+ "description": "Analog DAC output voltage for channel 1, can sink or source up to 25 mA."+ },+ {+ "number": "7",+ "name": "OUT2",+ "type": "output",+ "description": "Analog DAC output voltage for channel 2, can sink or source up to 25 mA."+ },+ {+ "number": "8",+ "name": "OUT3",+ "type": "output",+ "description": "Analog DAC output voltage for channel 3, can sink or source up to 25 mA."+ },+ {+ "number": "9",+ "name": "VIO",+ "type": "power_in",+ "description": "IO supply voltage from 1.7 V to 5.5 V, sets the I/O operating voltage for the device."+ },+ {+ "number": "10",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference point for all circuitry on the device."+ },+ {+ "number": "11",+ "name": "SDO",+ "type": "output",+ "description": "Serial interface data output, enabled by SDO-EN bit, clocked out on rising or falling edge of SCLK as specified by FSDO bit."+ },+ {+ "number": "12",+ "name": "SCLK",+ "type": "input",+ "description": "Serial interface clock input."+ },+ {+ "number": "13",+ "name": "SDI",+ "type": "input",+ "description": "Serial interface data input, clocked in on each falling edge of SCLK."+ },+ {+ "number": "14",+ "name": "CS",+ "type": "input",+ "description": "Active low chip select, frame synchronization signal for serial interface."+ },+ {+ "number": "15",+ "name": "TOGGLE0",+ "type": "input",+ "description": "Toggle control pin for DAC outputs configured for toggle operation, logic low selects Register A, high selects Register B."+ },+ {+ "number": "16",+ "name": "TOGGLE1",+ "type": "input",+ "description": "Toggle control pin for DAC outputs configured for toggle operation, logic low selects Register A, high selects Register B."+ },+ {+ "number": "17",+ "name": "TOGGLE2",+ "type": "input",+ "description": "Toggle control pin for DAC outputs configured for toggle operation, logic low selects Register A, high selects Register B."+ },+ {+ "number": "18",+ "name": "LDAC",+ "type": "input",+ "description": "Active low load DAC signal, updates synchronous mode channels when low."+ },+ {+ "number": "19",+ "name": "RESET",+ "type": "input",+ "description": "Active low reset input, minimum 500 ns pulse causes power-on-reset event."+ },+ {+ "number": "20",+ "name": "CLR",+ "type": "input",+ "description": "Active low clear input, clears all DAC outputs to their clear code."+ },+ {+ "number": "21",+ "name": "ALMOUT",+ "type": "tri_state",+ "description": "Open drain alarm output, requires external 10-kΩ pull-up resistor to VIO or lower."+ },+ {+ "number": "22",+ "name": "TEMPOUT",+ "type": "output",+ "description": "Analog temperature monitor output with -4 mV/°C slope and 1.34 V offset."+ },+ {+ "number": "23",+ "name": "OUT4",+ "type": "output",+ "description": "Analog DAC output voltage for channel 4, can sink or source up to 25 mA."+ },+ {+ "number": "24",+ "name": "OUT5",+ "type": "output",+ "description": "Analog DAC output voltage for channel 5, can sink or source up to 25 mA."+ },+ {+ "number": "25",+ "name": "OUT6",+ "type": "output",+ "description": "Analog DAC output voltage for channel 6, can sink or source up to 25 mA."+ },+ {+ "number": "26",+ "name": "OUT7",+ "type": "output",+ "description": "Analog DAC output voltage for channel 7, can sink or source up to 25 mA."+ },+ {+ "number": "27",+ "name": "NC",+ "type": "unconnected",+ "description": "No connection."+ },+ {+ "number": "28",+ "name": "NC",+ "type": "unconnected",+ "description": "No connection."+ },+ {+ "number": "29",+ "name": "NC",+ "type": "unconnected",+ "description": "No connection."+ },+ {+ "number": "30",+ "name": "NC",+ "type": "unconnected",+ "description": "No connection."+ },+ {+ "number": "31",+ "name": "VCC",+ "type": "power_in",+ "description": "Output positive analog power supply, 9 V to 41.5 V."+ },+ {+ "number": "32",+ "name": "VSS",+ "type": "power_in",+ "description": "Output negative analog power supply, -21.5 V to 0 V."+ },+ {+ "number": "33",+ "name": "REF",+ "type": "bidirectional",+ "description": "Reference input for external reference mode or reference output for internal reference mode, connect 150-nF capacitor to ground."+ },+ {+ "number": "34",+ "name": "REFCMP",+ "type": "passive",+ "description": "Reference compensation capacitor connection, connect 330-pF capacitor between REFCMP and REFGND."+ },+ {+ "number": "35",+ "name": "REFGND",+ "type": "power_in",+ "description": "Ground reference point for the internal reference circuit."+ },+ {+ "number": "36",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference point for all circuitry on the device."+ },+ {+ "number": "37",+ "name": "VAA",+ "type": "power_in",+ "description": "Analog supply voltage, 4.5 V to 5.5 V, must be at same potential as VDD."+ },+ {+ "number": "38",+ "name": "VDD",+ "type": "power_in",+ "description": "Digital supply voltage, 4.5 V to 5.5 V, must be at same potential as VAA."+ },+ {+ "number": "39",+ "name": "VSS",+ "type": "power_in",+ "description": "Output negative analog power supply, -21.5 V to 0 V."+ },+ {+ "number": "40",+ "name": "VCC",+ "type": "power_in",+ "description": "Output positive analog power supply, 9 V to 41.5 V."+ },+ {+ "number": "41",+ "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-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: Thermal pad present on package underside but not assigned a numbered pin in standard pin configurati",+ "exposed pad 41 added from the footprint"+ ],+ "pages_sent": 14,+ "cost_usd": 0.1826,+ "at": "2026-10-05T23:40:38"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/dac71408",+ "pages": 57,+ "sha256": "e7e735c17754d8c0",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 41,+ "described": 41,+ "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]"+ }+}