# INA212CIRSWR

**Texas Instruments** · Current Sense Amplifiers · UQFN-10(1.4x1.8)

INA212CIRSWR from Texas Instruments, in a UQFN-10(1.4x1.8). 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 | NC | unconnected | No internal connection; the datasheet says it may be left floating or grounded. |
| 2 | IN+ | input | Analog input connected to the supply side of the shunt resistor; it is one of two IN+ pins that must be tied together with pin 3, and the common-mode range for version C is -0.1 V to 26 V. |
| 3 | IN+ | input | Second analog input connection to the supply side of the shunt resistor; it must be tied to pin 2. |
| 4 | IN- | input | Analog input connected to the load side of the shunt resistor; it is one of two IN- pins that must be tied together with pin 5. |
| 5 | IN- | input | Second analog input connection to the load side of the shunt resistor; it must be tied to pin 4. |
| 6 | V+ | power_in | Power supply pin, specified for 2.7 V to 26 V with bypass capacitance of 0.01 µF to 0.1 µF recommended near the pin. |
| 7 | NC | unconnected | No internal connection; the datasheet says it may be left floating or grounded. |
| 8 | REF | input | Reference voltage input that must stay between 0 V and V+; if driven from a resistor divider it must be buffered by an op amp. |
| 9 | GND | power_in | Analog ground pin. |
| 10 | OUT | output | Analog voltage output; its swing is limited to about 0.2 V below V+ and 0.05 V above GND with a 10 kΩ load to GND. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | UQFN-10(1.4x1.8) |
| Category | Amplifiers/Comparators |
| Pins | 10 |

## CAD (KiCad official)

- Symbol: `INA212CIRSWR`
- Footprint: `Package_DFN_QFN:UQFN-10_1.4x1.8mm_P0.4mm`
- 3D model: UQFN-10(1.4x1.8) (KiCad packages3D, STEP)
- 3D model files: `ina212cirswr-etched.step` / `ina212cirswr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ina212cirswr.step` / `ina212cirswr.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/ina214) (50 pp, sha256 `8bce21ab869b5599`, retrieved 2026-10-08, tier: lcsc)
- **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:** 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/ina212cirswr-datasheet.pdf)