# INA819IDR

**Texas Instruments** · Precision Op Amps · SOIC-8

INA819IDR 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 (inverting) input protected up to ±60 V. |
| 2 | RG | passive | Gain setting pin; place a gain resistor between pin 2 and pin 3. |
| 3 | RG | passive | Gain setting pin; place a gain resistor between pin 2 and pin 3. |
| 4 | +IN | input | Positive (noninverting) input protected up to ±60 V. |
| 5 | -VS | power_in | Negative power supply rated 4.5-36 V single-supply or ±2.25-±18 V dual-supply. |
| 6 | REF | input | Reference input rated -20 to +20 V; must be driven by low impedance source. |
| 7 | OUT | output | Output rated (-Vs) - 0.5 to (+Vs) + 0.5 V, maximum ±50 mA. |
| 8 | +VS | power_in | Positive power supply rated 4.5-36 V single-supply or ±2.25-±18 V dual-supply. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `INA819IDR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `ina819idr-etched.step` / `ina819idr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ina819idr.step` / `ina819idr.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/ina819.pdf) (51 pp, sha256 `2f14c6b915bfbe0d`, retrieved 2026-10-06, tier: manufacturer)
- **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/ina819idr-datasheet.pdf)