# INA186A2IDDFT

**Texas Instruments** · Current Sense Amplifiers · TSOT-23-8

INA186A2IDDFT from Texas Instruments, in a TSOT-23-8. 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 | VS | power_in | Analog power supply voltage input; accepts 1.7 V to 5.5 V |
| 2 | ENABLE | input | Digital input enable pin; drive to VS to enable device and start current measurement, or drive to GND to disable and reduce quiescent current to 10nA; output enters high impedance state when disabled; must be externally driven or connected to VS if not used |
| 3 | REF | input | Analog reference input for bidirectional current sensing; externally applied voltage sets output offset for two-direction current measurement; connect to GND for unidirectional measurement or to VS/2 for bidirectional measurement |
| 4 | GND | power_in | Analog ground reference |
| 5 | OUT | output | Analog voltage output; provides amplified voltage difference from IN+ to IN- added to REF offset voltage; output swings from GND + 1mV to VS - 40mV |
| 6 | NC | unconnected | No internal connection; can be left floating, grounded, or connected to power supply |
| 7 | IN+ | input | Current sense amplifier positive input; for high-side applications connect to bus voltage side of sense resistor; for low-side applications connect to load side of sense resistor; accepts common-mode voltage from -0.2 V to +40 V |
| 8 | IN- | input | Current sense amplifier negative input; for high-side applications connect to load side of sense resistor; for low-side applications connect to ground side of sense resistor; accepts common-mode voltage from -0.2 V to +40 V |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSOT-23-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `INA186A2IDDFT`
- Footprint: `Package_TO_SOT_SMD:TSOT-23-8`
- 3D model: TSOT-23-8 (KiCad packages3D, STEP)
- 3D model files: `ina186a2iddft-etched.step` / `ina186a2iddft-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ina186a2iddft.step` / `ina186a2iddft.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/ina186) (48 pp, sha256 `c1bdab2e3ee3efb4`, retrieved 2026-10-07, 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-4-5-20251001` (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/ina186a2iddft-datasheet.pdf)