component
UAF42AU
Public Made by Adomby adom
Texas Instruments ADCs/DACs - Special Purpose, SOIC-16-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+52@@ -0,0 +1,52 @@+# UAF42AU++**Texas Instruments** · ADCs/DACs - Special Purpose · SOIC-16-300mil++UAF42AU from Texas Instruments, in a SOIC-16-300mil. 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 | Low-Pass VO | output | Low-pass filter output of the state-variable filter, with ±11 V typical output swing into 2kΩ on the op amps and ±25 mA short-circuit current. |+| 2 | NC | unconnected | No connection; for best performance connect to ground to minimize inter-lead capacitance. |+| 3 | VIN3 | input | Filter summing input 3 (In3) of the universal active filter, with on-chip 50kΩ ±0.5% resistor. |+| 4 | VIN2 | input | Filter summing input 2 (In2) of the universal active filter, with on-chip 50kΩ ±0.5% resistor. |+| 5 | Auxiliary Op Amp, +In | input | Non-inverting input of the uncommitted FET-input auxiliary op amp, with input bias current 10 pA typical and common-mode range ±11.5 V. |+| 6 | Auxiliary Op Amp, -In | input | Inverting input of the uncommitted FET-input auxiliary op amp, used for additional stages or band-reject and inverse Chebyshev filters. |+| 7 | Auxiliary Op Amp, VO | output | Output of the uncommitted auxiliary op amp, with ±11 V minimum swing into 2kΩ and ±25 mA short-circuit current. |+| 8 | Bandpass VO | output | Band-pass filter output of the state-variable filter. |+| 9 | Frequency Adj1 | passive | Frequency adjust node for the first integrator, where an external resistor sets the natural frequency together with the on-chip 1000pF ±0.5% capacitor. |+| 10 | V- | power_in | Negative supply, operating range -6 V to -18 V (absolute maximum ±18 V). |+| 11 | V+ | power_in | Positive supply, operating range +6 V to +18 V (absolute maximum ±18 V). |+| 12 | Ground | power_in | Ground reference for the filter. |+| 13 | VIN1 | input | Filter summing input 1 (In1) of the universal active filter, with on-chip 50kΩ ±0.5% resistor. |+| 14 | High-Pass VO | output | High-pass filter output of the state-variable filter. |+| 15 | NC | unconnected | No connection; for best performance connect to ground to minimize inter-lead capacitance. |+| 16 | Frequency Adj2 | passive | Frequency adjust node for the second integrator, where an external resistor sets the natural frequency together with the on-chip 1000pF ±0.5% capacitor. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-16-300mil |+| Category | Data Acquisition |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `UAF42AU`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOIC-16-300mil (KiCad packages3D, STEP)+- 3D model files: `uaf42au-etched.step` / `uaf42au-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `uaf42au.step` / `uaf42au.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/uaf42) (16 pp, sha256 `47c8145278cd4cf9`, retrieved 2026-10-07, 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/uaf42au-datasheet.pdf)
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for best performance connect to ground to minimize inter-lead capacitance."+ },+ {+ "number": "3",+ "name": "VIN3",+ "type": "input",+ "description": "Filter summing input 3 (In3) of the universal active filter, with on-chip 50kΩ ±0.5% resistor."+ },+ {+ "number": "4",+ "name": "VIN2",+ "type": "input",+ "description": "Filter summing input 2 (In2) of the universal active filter, with on-chip 50kΩ ±0.5% resistor."+ },+ {+ "number": "5",+ "name": "Auxiliary Op Amp, +In",+ "type": "input",+ "description": "Non-inverting input of the uncommitted FET-input auxiliary op amp, with input bias current 10 pA typical and common-mode range ±11.5 V."+ },+ {+ "number": "6",+ "name": "Auxiliary Op Amp, -In",+ "type": "input",+ "description": "Inverting input of the uncommitted FET-input auxiliary op amp, used for additional stages or band-reject and inverse Chebyshev filters."+ },+ {+ "number": "7",+ "name": "Auxiliary Op Amp, VO",+ "type": "output",+ "description": "Output of the uncommitted auxiliary op amp, with ±11 V minimum swing into 2kΩ and ±25 mA short-circuit current."+ },+ {+ "number": "8",+ "name": "Bandpass VO",+ "type": "output",+ "description": "Band-pass filter output of the state-variable filter."+ },+ {+ "number": "9",+ "name": "Frequency Adj1",+ "type": "passive",+ "description": "Frequency adjust node for the first integrator, where an external resistor sets the natural frequency together with the on-chip 1000pF ±0.5% capacitor."+ },+ {+ "number": "10",+ "name": "V-",+ "type": "power_in",+ "description": "Negative supply, operating range -6 V to -18 V (absolute maximum ±18 V)."+ },+ {+ "number": "11",+ "name": "V+",+ "type": "power_in",+ "description": "Positive supply, operating range +6 V to +18 V (absolute maximum ±18 V)."+ },+ {+ "number": "12",+ "name": "Ground",+ "type": "power_in",+ "description": "Ground reference for the filter."+ },+ {+ "number": "13",+ "name": "VIN1",+ "type": "input",+ "description": "Filter summing input 1 (In1) of the universal active filter, with on-chip 50kΩ ±0.5% resistor."+ },+ {+ "number": "14",+ "name": "High-Pass VO",+ "type": "output",+ "description": "High-pass filter output of the state-variable filter."+ },+ {+ "number": "15",+ "name": "NC",+ "type": "unconnected",+ "description": "No connection; for best performance connect to ground to minimize inter-lead capacitance."+ },+ {+ "number": "16",+ "name": "Frequency Adj2",+ "type": "passive",+ "description": "Frequency adjust node for the second integrator, where an external resistor sets the natural frequency together with the on-chip 1000pF ±0.5% capacitor."+ }+ ],+ "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": [],+ "pages_sent": 16,+ "cost_usd": 0.1134,+ "at": "2026-10-07T02:50:16"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/uaf42",+ "pages": 16,+ "sha256": "47c8145278cd4cf9",+ "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": "uaf42au.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 9.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "uaf42au-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 9.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "9a702580c1d85cf2c52142881f727e9fdd40ecbf0012e8addd09d1fb58091ac6",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}