# OPA2211AIDDA

**Texas Instruments** · Operational Amplifier · SOP-8-EP

OPA2211AIDDA from Texas Instruments, in a SOP-8-EP. 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 | OUT A | output | Output channel A with voltage swing from (V-) + 0.2V to (V+) - 0.2V at RL = 10kΩ and maximum output current capability of 30mA source or 45mA sink. |
| 2 | -IN A | input | Inverting input channel A with common-mode voltage range from (V-) + 1.8V to (V+) - 1.4V for dual supply voltages ≥ ±5V. |
| 3 | +IN A | input | Non-inverting input channel A with common-mode voltage range from (V-) + 1.8V to (V+) - 1.4V for dual supply voltages ≥ ±5V. |
| 4 | V- | power_in | Negative power supply rail with rated supply voltage range ±2.25V to ±18V (dual supply) or 4.5V to 36V (single supply). |
| 5 | +IN B | input | Non-inverting input channel B with common-mode voltage range from (V-) + 1.8V to (V+) - 1.4V for dual supply voltages ≥ ±5V. |
| 6 | -IN B | input | Inverting input channel B with common-mode voltage range from (V-) + 1.8V to (V+) - 1.4V for dual supply voltages ≥ ±5V. |
| 7 | OUT B | output | Output channel B with voltage swing from (V-) + 0.2V to (V+) - 0.2V at RL = 10kΩ and maximum output current capability of 30mA source or 45mA sink. |
| 8 | V+ | power_in | Positive power supply rail with rated supply voltage range ±2.25V to ±18V (dual supply) or 4.5V to 36V (single supply). |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOP-8-EP |
| Category | Amplifiers/Comparators |
| Pins | 9 |

## CAD (KiCad official)

- Symbol: `OPA2211AIDDA`
- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm`
- 3D model: SOP-8-EP (KiCad packages3D, STEP)
- 3D model files: `opa2211aidda-etched.step` / `opa2211aidda-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `opa2211aidda.step` / `opa2211aidda.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/opa2211a) (53 pp, sha256 `0136da924c2df6bb`, retrieved 2026-10-07, 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-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/opa2211aidda-datasheet.pdf)