# INA270AQDRQ1

**Texas Instruments** · Current Sense Amplifiers · SOIC-8

INA270AQDRQ1 from Texas Instruments, in a SOIC-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 | IN- | input | Negative input; connect to the load side of the shunt resistor. |
| 2 | GND | power_in | Ground reference pin for the device. |
| 3 | PRE OUT | output | Pre-amplifier output with a 96-kΩ output impedance; connect to the input of an external filter whose output drives BUF IN. |
| 4 | BUF IN | input | Input to the output buffer stage; connect to the output of the filter fed from PRE OUT. |
| 5 | OUT | output | Current-sense amplifier voltage output. |
| 6 | VS | power_in | Power supply input, 2.7 V to 18 V (absolute maximum 18 V). |
| 7 | NC | unconnected | Not internally connected; the datasheet says to connect this pin to ground. |
| 8 | IN+ | input | Positive input; connect to the supply side of the shunt resistor. Common-mode range is -16 V to +80 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `INA270AQDRQ1`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `ina270aqdrq1-etched.step` / `ina270aqdrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ina270aqdrq1.step` / `ina270aqdrq1.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/ina270a-q1) (23 pp, sha256 `677413dd7e946c1a`, retrieved 2026-10-12, 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/ina270aqdrq1-datasheet.pdf)