# OPA211IDR

**Texas Instruments** · Operational Amplifier · SOIC-8

OPA211IDR 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 | NC | unconnected | No internal connection; can be left floating or connected to any voltage between (V-) and (V+). |
| 2 | -IN | input | Inverting input. |
| 3 | +IN | input | Noninverting input. |
| 4 | V- | power_in | Negative power supply. |
| 5 | NC | unconnected | No internal connection; can be left floating or connected to any voltage between (V-) and (V+). |
| 6 | OUT | output | Output. |
| 7 | V+ | power_in | Positive power supply. |
| 8 | Shutdown | input | Shutdown control, active high; device enabled when (V-) ≤ VSHUTDOWN ≤ (V+) - 3 V and disabled when VSHUTDOWN ≥ (V+) - 0.35 V. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `OPA211IDR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `opa211idr-etched.step` / `opa211idr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `opa211idr.step` / `opa211idr.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/opa211.pdf) (52 pp, sha256 `2415597a36a2108b`, retrieved 2026-10-05, 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/opa211idr-datasheet.pdf)