# INA819IDGKR

**Texas Instruments** · Instrumentation Amplifiers · MSOP-8

INA819IDGKR from Texas Instruments, in a MSOP-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; signal input pins are rated -60 V to 60 V absolute maximum. |
| 2 | RG | passive | Gain setting pin; place a gain resistor between pin 2 and pin 3, with G = 1 + 50 kΩ / RG. |
| 3 | RG | passive | Gain setting pin; place a gain resistor between pin 2 and pin 3, with G = 1 + 50 kΩ / RG. |
| 4 | +IN | input | Positive (noninverting) input; signal input pins are rated -60 V to 60 V absolute maximum. |
| 5 | -VS | power_in | Negative supply; recommended operation is ±2.25 V to ±18 V dual supply or 4.5 V to 36 V single supply. |
| 6 | REF | input | Reference input that must be driven by a low impedance source; VREF pin is rated -20 V to 20 V absolute maximum. |
| 7 | OUT | output | Output; maximum voltage is (-Vs) - 0.5 V to (+Vs) + 0.5 V and maximum output current is ±50 mA. |
| 8 | +VS | power_in | Positive supply; recommended operation is 4.5 V to 36 V single supply or ±2.25 V to ±18 V dual supply, with absolute maximum of 40 V single or ±20 V dual. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `INA819IDGKR`
- Footprint: `Package_SO:MSOP-8_3x3mm_P0.65mm`
- 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files: `ina819idgkr-etched.step` / `ina819idgkr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ina819idgkr.step` / `ina819idgkr.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/ina819) (52 pp, sha256 `29478001f5b66c83`, 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/ina819idgkr-datasheet.pdf)