# INA317IDGKR

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

INA317IDGKR from Texas Instruments, in a VSSOP-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 | RG | passive | Gain-setting pin; for gains greater than 1, a gain resistor is placed between pins 1 and 8, with gain G = 1 + (100 kΩ / RG). |
| 2 | VIN- | power_in | Negative input of the instrumentation amplifier; the features list the input voltage range as (V-) + 0.1 V to (V+) - 0.1 V. |
| 3 | VIN+ | power_in | Positive input of the instrumentation amplifier; the features list the input voltage range as (V-) + 0.1 V to (V+) - 0.1 V. |
| 4 | V- | power_in | Negative supply rail; the total supply voltage VS is specified at 1.8 V to 5.5 V. |
| 5 | REF | input | Reference input that must be driven by a low-impedance source or connected to ground. |
| 6 | VOUT | output | Amplifier output; the features list the output voltage range as (V-) + 0.05 V to (V+) - 0.05 V. |
| 7 | V+ | power_in | Positive supply rail; the total supply voltage VS is specified at 1.8 V to 5.5 V. |
| 8 | RG | passive | Gain-setting pin; for gains greater than 1, a gain resistor is placed between pins 1 and 8, with gain G = 1 + (100 kΩ / RG). |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `INA317IDGKR`
- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`
- 3D model: VSSOP-8 (KiCad packages3D, STEP)
- 3D model files: `ina317idgkr-etched.step` / `ina317idgkr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ina317idgkr.step` / `ina317idgkr.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/ina317) (32 pp, sha256 `91766fd1bbbb5eaa`, 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/ina317idgkr-datasheet.pdf)