INA185

@@ -0,0 +1,50 @@+# INA185++**Texas Instruments** · Current-sense amplifier · SOT-563++Amplifies the voltage across a shunt into a ground-referenced output, in a tiny SOT-563, with a common-mode range from -0.2 to 26 V so it works high-side or low-side regardless of the supply. A REF pin sets the zero-current output for bidirectional current, and the fixed-gain options (20 to 100 V/V) plus high bandwidth track fast load steps. It runs from a single 2.7 to 5.5 V rail. The small, low-cost sibling of the INA181 for board-level current measurement.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | OUT | output | Analog output voltage. Buffered amplifier output representing the amplified sense-resistor differential voltage referenced to REF. |+| 2 | GND | power_in | Device ground reference. |+| 3 | IN+ | input | Current-sense amplifier positive (noninverting) input. For high-side applications, connect to bus-voltage side of sense resistor. For low-side applications, connect to load side of sense resistor. Common-mode range -0.2 V to +26 V. |+| 4 | IN- | input | Current-sense amplifier negative (inverting) input. For high-side applications, connect to load side of sense resistor. For low-side applications, connect to ground side of sense resistor. Common-mode range -0.2 V to +26 V. |+| 5 | REF | input | Reference input. Sets the output zero-current reference voltage; typically driven to VS/2 for bidirectional sensing or to GND for unidirectional sensing. |+| 6 | VS | power_in | Power supply, 2.7 V to 5.5 V. Bypass locally with a 0.1-μF ceramic capacitor to GND. |++## Key specifications++| Parameter | Value |+|---|---|+| Type | Current-sense amplifier (voltage output) |+| Common-mode range | -0.2 V to 26 V |+| Gain options | 20 / 50 / 100 V/V |+| Bandwidth | Up to 350 kHz |+| Direction | Bidirectional (via REF) |+| Supply | 2.7-5.5 V |+| Package | SOT-563 |++## Ordering variants++- `INA185A1IDRLR (gain 20)`+- `INA185A2IDRLR (gain 50)`+- `INA185A3IDRLR (gain 100)`++## CAD (KiCad official)++- Symbol: `Amplifier_Current:INA185 (KiCad official)`+- Footprint: `Package_TO_SOT_SMD:SOT-563`+- 3D model: SOT-563 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/ina185.pdf) (37 pp, sha256 `d1b65f23841d266c`, retrieved 2026-08-17, tier: manufacturer)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/ina185-datasheet.pdf)

@@ -0,0 +1,37 @@+{+  "slug": "ina185",+  "version": "0.1.0",+  "type": "component",+  "description": "TI low-cost current-sense amplifier, SOT-563. -0.2 to 26 V common mode, bidirectional, high bandwidth. Datasheet-verified.",+  "tags": [+    "component",+    "amplifier",+    "current-sense",+    "shunt-monitor",+    "sot-563",+    "texas-instruments"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "ina185.kicad_sym",+    "ina185.kicad_mod",+    "ina185.glb",+    "ina185.step",+    "ina185.lbr",+    "docs/hero.png",+    "docs/ina185-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file