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INA155E
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Texas Instruments Instrumentation Amplifiers, 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 @@+# INA155E++**Texas Instruments** · Instrumentation Amplifiers · VSSOP-8++INA155E 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 | RG | passive | Gain-setting pin: leave open for G = 10, connect directly to pin 8 for G = 50, or place a resistor between pins 1 and 8 for 10 < G < 50, keeping the pin 1 to pin 8 connection low impedance (20Ω can cause a 0.2% gain error shift). |+| 2 | VIN- | power_in | Inverting signal input, with a safe input voltage of (V-) - 0.5V to (V+) + 0.5V and an input bias current return path required; inputs beyond the supply rails by more than 500mV should be limited to 10mA. |+| 3 | VIN+ | power_in | Non-inverting signal input, with common-mode range of 0.3V to 5.2V at VS = 5.5V and 0.2V to 2.5V at VS = 2.7V, and an input bias current return path required. |+| 4 | V- | power_in | Negative power supply terminal (ground in single-supply operation), with the device specified for a total supply of +2.7V to +5.5V. |+| 5 | Ref | input | Output reference terminal normally set to VS/2 that must be driven low impedance for good CMRR, since 200Ω in series with Ref degrades a typical device to about 80dB CMRR. |+| 6 | VOUT | output | Output referred to the Ref terminal, swinging to within 10mV of either rail with RL = 10kΩ and rated for ±50mA short-circuit current to ground. |+| 7 | V+ | power_in | Positive power supply terminal, specified for +2.7V to +5.5V with quiescent current of 1.7mA typical and 2.1mA maximum at 25°C. |+| 8 | RG | passive | Second gain-setting pin, used with pin 1 exactly as described for pin 1: open for G = 10, shorted to pin 1 for G = 50, or joined by a resistor for intermediate gains. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VSSOP-8 |+| Category | Amplifiers/Comparators |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `INA155E`+- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`+- 3D model: VSSOP-8 (KiCad packages3D, STEP)+- 3D model files: `ina155e-etched.step` / `ina155e-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ina155e.step` / `ina155e.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/ina155) (17 pp, sha256 `477f3b4451cfbf8f`, 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/ina155e-datasheet.pdf)
page.jsonadded+198@@ -0,0 +1,198 @@+{+ "slug": "ina155e",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Instrumentation Amplifiers, VSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "amplifiers-comparators",+ "ina155e",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ina155e.kicad_sym",+ "ina155e.kicad_mod",+ "ina155e.glb",+ "ina155e.step",+ "ina155e.lbr",+ "docs/hero.png",+ "docs/ina155e-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "ina155e-hero.glb",+ "ina155e-hero.overlay.json"+ ],+ "component": {+ "mpn": "INA155E",+ "manufacturer": "Texas Instruments",+ "package": "VSSOP-8",+ "pin_count": 8,+ "category": "Amplifiers/Comparators",+ "subcategory": "Instrumentation Amplifiers",+ "datasheet": "https://www.ti.com/cn/lit/gpn/ina155",+ "parts": {+ "symbol": "ina155e.kicad_sym",+ "footprint": "ina155e.kicad_mod",+ "model_3d": "ina155e-hero.glb",+ "model_3d_plain": "ina155e.glb",+ "model_3d_step": "ina155e-etched.step",+ "model_3d_step_plain": "ina155e.step",+ "lbr": "ina155e.lbr"+ },+ "distributor_links": {+ "lcsc": "C2869149"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T16:48:55Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": null,+ "status": "no match"+ },+ "mouser": {+ "pn": null,+ "status": "no match"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "RG",+ "type": "passive",+ "description": "Gain-setting pin: leave open for G = 10, connect directly to pin 8 for G = 50, or place a resistor between pins 1 and 8 for 10 < G < 50, keeping the pin 1 to pin 8 connection low impedance (20Ω can cause a 0.2% gain error shift)."+ },+ {+ "number": "2",+ "name": "VIN–",+ "type": "power_in",+ "description": "Inverting signal input, with a safe input voltage of (V-) - 0.5V to (V+) + 0.5V and an input bias current return path required; inputs beyond the supply rails by more than 500mV should be limited to 10mA."+ },+ {+ "number": "3",+ "name": "VIN+",+ "type": "power_in",+ "description": "Non-inverting signal input, with common-mode range of 0.3V to 5.2V at VS = 5.5V and 0.2V to 2.5V at VS = 2.7V, and an input bias current return path required."+ },+ {+ "number": "4",+ "name": "V–",+ "type": "power_in",+ "description": "Negative power supply terminal (ground in single-supply operation), with the device specified for a total supply of +2.7V to +5.5V."+ },+ {+ "number": "5",+ "name": "Ref",+ "type": "input",+ "description": "Output reference terminal normally set to VS/2 that must be driven low impedance for good CMRR, since 200Ω in series with Ref degrades a typical device to about 80dB CMRR."+ },+ {+ "number": "6",+ "name": "VOUT",+ "type": "output",+ "description": "Output referred to the Ref terminal, swinging to within 10mV of either rail with RL = 10kΩ and rated for ±50mA short-circuit current to ground."+ },+ {+ "number": "7",+ "name": "V+",+ "type": "power_in",+ "description": "Positive power supply terminal, specified for +2.7V to +5.5V with quiescent current of 1.7mA typical and 2.1mA maximum at 25°C."+ },+ {+ "number": "8",+ "name": "RG",+ "type": "passive",+ "description": "Second gain-setting pin, used with pin 1 exactly as described for pin 1: open for G = 10, shorted to pin 1 for G = 50, or joined by a resistor for intermediate gains."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-5-5",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: Pin-to-name mapping was reconstructed from the text extraction of the top-view drawing on page 4 (la; Package naming differs: the datasheet's top view and ordering table call this package MSOP-8 (E) wit; Pin descriptions for VIN+, V+ and Ref use specified values from the typical-value and specification ",+ "1/8 pins cited to the wrong page (name found elsewhere): ['3:VIN+@p4']"+ ],+ "pages_sent": 17,+ "cost_usd": 0.0983,+ "at": "2026-10-08T16:48:34"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/ina155",+ "pages": 17,+ "sha256": "477f3b4451cfbf8f",+ "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": "ina155e.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": "ina155e-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": "7059942a7b466baa9db47fbd9eeb4f404c61b72a0b1f5a98af0f359629f04665",+ "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]"+ }+}