# INA169NA

**Texas Instruments** · Current Sense Amplifiers · SOT-23-5

INA169NA from Texas Instruments, in a SOT-23-5. 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 | Output current pin. Sources a current proportional to (V_IN+ − V_IN−); an external load resistor R_L to GND converts this to an output voltage V_O = I_S × R_S × R_L / 1kΩ, setting a gain of 1 to >100. |
| 2 | GND | power_in | Device ground reference. |
| 3 | VIN+ | input | Positive input voltage. Connects to the more positive end of the external current-sense shunt resistor R_S on the high side of the load. Common-mode range 2.7 V to 60 V for the INA169. |
| 4 | VIN- | input | Negative input voltage. Connects to the load side of the external sense resistor R_S. Differential input (VIN+ − VIN−) sets the output current through internal 1 kΩ resistors. |
| 5 | V+ | power_in | Power supply voltage. 2.7 V to 60 V operating range for the INA169; independent of the input common-mode voltage. Quiescent current ~60 µA typical. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| Category | Amplifiers/Comparators |
| Pins | 5 |

## Ordering variants

Same part, different packaging or reel option.

- `INA169NA`

## CAD (KiCad official)

- Symbol: `INA169NA`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `ina169na-etched.step` / `ina169na-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ina169na.step` / `ina169na.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/lit/ds/symlink/ina169.pdf) (28 pp, sha256 `dbb74b6cdc543135`, 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/ina169na-datasheet.pdf)