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OPA2704UA
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Texas Instruments Operational Amplifier, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# OPA2704UA++**Texas Instruments** · Operational Amplifier · SOIC-8++OPA2704UA from Texas Instruments, in a SOIC-8. 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 | Out A | output | Output of amplifier A, which swings to within 40mV of the rail with RL = 100kΩ and is rated for ±10mA output current with continuous short-circuit protection. |+| 2 | -In A | input | Inverting input of amplifier A, which is diode-clamped to the supply rails, so signals more than 0.3V beyond the rails must be limited to 10mA or less. |+| 3 | +In A | input | Non-inverting input of amplifier A, whose common-mode voltage range extends from (V-) - 0.3V to (V+) + 0.3V. |+| 4 | V- | power_in | Negative supply rail, specified for dual supplies of ±2V to ±6V and single-supply operation from the same rail. |+| 5 | +In B | input | Non-inverting input of amplifier B, whose common-mode voltage range extends from (V-) - 0.3V to (V+) + 0.3V. |+| 6 | -In B | input | Inverting input of amplifier B, which is diode-clamped to the supply rails, so signals more than 0.3V beyond the rails must be limited to 10mA or less. |+| 7 | Out B | output | Output of amplifier B, which swings to within 40mV of the rail with RL = 100kΩ and is rated for ±10mA output current with continuous short-circuit protection. |+| 8 | V+ | power_in | Positive supply rail, specified for single supply 4V to 12V with an absolute maximum V+ to V- of 13.2V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Amplifiers/Comparators |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `OPA2704UA`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)+- 3D model files: `opa2704ua-etched.step` / `opa2704ua-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `opa2704ua.step` / `opa2704ua.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/opa703) (37 pp, sha256 `99e4c54a94dcab23`, retrieved 2026-10-07, 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/opa2704ua-datasheet.pdf)
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Pin descriptions are built from the general ; Package is SO-8 (D) as listed for OPA2704UA on the ordering table (page 2). The ordering table also "+ ],+ "pages_sent": 9,+ "cost_usd": 0.0767,+ "at": "2026-10-07T21:53:27"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/opa703",+ "pages": 37,+ "sha256": "99e4c54a94dcab23",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 8,+ "described": 8,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "opa2704ua.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 4.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "opa2704ua-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 4.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "94c84e6d07e4ce9d6533238fe6913aabd05710b6bd5e0b4f52d261698a805975",+ "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]"+ }+}