INA168

@@ -0,0 +1,48 @@+# INA168++**Texas Instruments** · Current-sense amplifier · SOT-23-5++Measures current through a high-side shunt on a rail up to 60 V and mirrors it as a current out of the OUT pin, which a single load resistor turns into a voltage of whatever scale you choose. Setting the gain with that one external resistor makes it flexible across ranges, and the high common-mode ceiling lets it sit on motor and battery rails. It runs from a 2.7 to 60 V supply. A simple, adjustable high-side current monitor. The INA138 is the same part at lower bandwidth.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | OUT | output | Output current. Sourced into an external load resistor R_L to ground; V_OUT = I_S * R_S * R_L / 5 kΩ. Transconductance is 200 µA/V typical. |+| 2 | GND | power_in | Device ground reference. |+| 3 | VIN+ | input | Positive differential input; connect to the high-side of the external shunt resistor R_S. Common-mode range 2.7 V to 60 V, independent of V+. |+| 4 | VIN- | input | Negative differential input; connect to the low-side of the external shunt resistor R_S (load side). Full-scale sense voltage (VIN+ − VIN−) 100 mV nom, 500 mV max. |+| 5 | V+ | power_in | Power supply voltage, 2.7 V to 60 V. Independent of the input common-mode voltage; quiescent current typically 25 µA. |++## Key specifications++| Parameter | Value |+|---|---|+| Type | High-side current shunt monitor (current output) |+| Common-mode range | 2.7-60 V |+| Gain | Set by external output resistor |+| Output | Current, mirrored from shunt |+| Bandwidth | Up to 800 kHz |+| Supply | 2.7-60 V |+| Package | SOT-23-5 |++## Ordering variants++- `INA168NA (SOT-23-5)`+- `INA168NA/3K (SOT-23-5, tape & reel)`++## CAD (KiCad official)++- Symbol: `Amplifier_Current:INA168 (KiCad official)`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5 (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/ina168.pdf) (28 pp, sha256 `381c48493d9daa2e`, 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/ina168-datasheet.pdf)

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