INA181A3IDBVR

@@ -0,0 +1,51 @@+# INA181A3IDBVR++**Texas Instruments** · Current-Sensing Amplifiers · SOT-23-6++INA181A3IDBVR from Texas Instruments, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | OUT | output | Analog output voltage. Amplified voltage proportional to the sensed current (V_OUT = Gain x V_SENSE + V_REF). Rail-to-rail output; A3 gain option is 100 V/V. |+| 2 | GND | power_in | Device ground reference (0 V). |+| 3 | IN+ | input | Current-sense amplifier positive input. For high-side applications, connect to the bus-voltage side of the sense resistor. For low-side applications, connect to the load side of the sense resistor. Common-mode range -0.2 V to +26 V. |+| 4 | IN- | input | Current-sense amplifier negative input. For high-side applications, connect to the load side of the sense resistor. For low-side applications, connect to the ground side of the sense resistor. Common-mode range -0.2 V to +26 V. |+| 5 | REF | input | Reference input. Sets the output voltage when the sensed differential input voltage is zero (allows bidirectional current sensing when biased between GND and VS). |+| 6 | VS | power_in | Power supply, 2.7 V to 5.5 V. Bypass to GND with a 0.1 uF ceramic capacitor. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOT-23-6 |+| Category | Op-amp/Cmp |+| Pins | 6 |++## Ordering variants++- `INA181A3IDBVRIDBVR`+- `INA181A3IDBVRIDBVT`+- `INA181A3IDBVRIDGSR`+- `INA181A3IDBVRIDGST`+- `INA181A3IDBVRIPWR`+- `INA181A3IDBVRIPWT`++## CAD (KiCad official)++- Symbol: `INA181A3IDBVR`+- Footprint: `Package_TO_SOT_SMD:SOT-23-6`+- 3D model: SOT-23-6 (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/ina181a3i.pdf) (58 pp, sha256 `f6bd362733887a4d`, retrieved 2026-08-17, tier: manufacturer)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **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/ina181a3idbvr-datasheet.pdf)

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