# INA101KU

**Texas Instruments** · Instrumentation Amplifiers · SOIC-16-300mil

INA101KU from Texas Instruments, in a SOIC-16-300mil. 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 | Output | output | Output of the instrumentation amplifier, rated ±10V minimum at ±5mA minimum and referenced to the Common pin. |
| 2 | +VCC | power_in | Positive power supply, rated ±15V with a ±5V to ±20V supply range. |
| 3 | -Input | input | Inverting input of the instrumentation amplifier, with 10^10 Ω input impedance. |
| 4 | Gain Sense 1 | passive | Gain sense connection that reduces gain error from wiring or socket resistance when connected at the RG resistor. |
| 5 | Gain Set 1 | passive | RG gain-setting resistor connection, with gain G = 1 + (40kΩ/RG). |
| 6 | Offset Adj. | passive | Offset adjust pin for an optional potentiometer that trims input offset voltage. |
| 7 | Offset Adj. | passive | Offset adjust pin for an optional potentiometer that trims input offset voltage. |
| 8 | NC | unconnected | No internal connection. |
| 9 | NC | unconnected | No internal connection. |
| 10 | A1 Output | passive | Output of input amplifier A1, brought out on the package. |
| 11 | A2 Output | passive | Output of input amplifier A2, brought out on the package. |
| 12 | Gain Set 2 | passive | RG gain-setting resistor connection, with gain G = 1 + (40kΩ/RG). |
| 13 | Gain Sense 2 | passive | Gain sense connection that reduces gain error from wiring or socket resistance when connected at the RG resistor. |
| 14 | +Input | input | Non-inverting input of the instrumentation amplifier, with 10^10 Ω input impedance. |
| 15 | -VCC | power_in | Negative power supply, rated ±15V with a ±5V to ±20V supply range. |
| 16 | Common | passive | Output reference terminal, normally grounded; series resistance above 0.1Ω degrades CMR below 106dB. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16-300mil |
| Category | Amplifiers/Comparators |
| Pins | 16 |

## CAD (KiCad official)

- Symbol: `INA101KU`
- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`
- 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files: `ina101ku-etched.step` / `ina101ku-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ina101ku.step` / `ina101ku.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/ina101) (12 pp, sha256 `0969fad0154b31f2`, retrieved 2026-10-10, 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/ina101ku-datasheet.pdf)