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LMH6550MMX
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Texas Instruments Operational Amplifier, VSSOP-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 @@+# LMH6550MMX++**Texas Instruments** · Operational Amplifier · VSSOP-8++LMH6550MMX from Texas Instruments, in a VSSOP-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 | -IN | input | Negative (inverting) input of the differential amplifier; the absolute maximum input current on pins 1, 2, 7 and 8 is 30 mA. |+| 2 | VCM | input | Output common-mode input; it is one of the pins (1, 2, 7, 8) limited to a 30 mA absolute maximum input current. |+| 3 | V+ | power_in | Positive supply; total supply voltage is recommended at 4.5 V to 12 V, with an absolute maximum of 13.2 V. |+| 4 | +OUT | output | Positive output of the differential amplifier; maximum output current is determined by device power dissipation limits, not a fixed value. |+| 5 | -OUT | output | Negative output of the differential amplifier; maximum output current is determined by device power dissipation limits, not a fixed value. |+| 6 | V- | power_in | Negative supply; total supply voltage is recommended at 4.5 V to 12 V, with an absolute maximum of 13.2 V. |+| 7 | EN | input | Enable input; the pin table gives no logic thresholds or polarity, and the pin is one of the pins (1, 2, 7, 8) limited to a 30 mA absolute maximum input current. |+| 8 | +IN | input | Positive (non-inverting) input of the differential amplifier; the absolute maximum input current on pins 1, 2, 7 and 8 is 30 mA. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VSSOP-8 |+| Category | Amplifiers/Comparators |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `LMH6550MMX`+- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`+- 3D model: VSSOP-8 (KiCad packages3D, STEP)+- 3D model files: `lmh6550mmx-etched.step` / `lmh6550mmx-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lmh6550mmx.step` / `lmh6550mmx.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/lmh6550) (37 pp, sha256 `0f8f9876d562abe3`, retrieved 2026-10-08, 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/lmh6550mmx-datasheet.pdf)
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The pin; The datasheet does not state the logic polarity or voltage thresholds for the EN pin. The only relat; The datasheet only gives the label 'Output Common-Mode Input' for VCM and does not describe its volt"+ ],+ "pages_sent": 7,+ "cost_usd": 0.0472,+ "at": "2026-10-08T15:18:55"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lmh6550",+ "pages": 37,+ "sha256": "0f8f9876d562abe3",+ "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": "lmh6550mmx.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 3.1,+ 2,+ 0.85+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "353552981eef35cb93635057d4aeb89aef22648c77af6fd095e328bfe6b834bd",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "lmh6550mmx-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 3.1,+ 2,+ 0.85+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "986c9512288aa199352ccc3dae8b9ece83455bfb3250a4c5aa2ba74c842ce505",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}