# OPA1641AIDGKR

**Texas Instruments** · Audio Amplifiers · VSSOP-8

OPA1641AIDGKR 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 | NC | unconnected | No internal connection. |
| 2 | -IN | input | Inverting input with input bias current of ±20 pA maximum and common-mode input voltage range of (V-)-0.1 V to (V+)-3.5 V. |
| 3 | +IN | input | Noninverting input with input bias current of ±20 pA maximum and common-mode input voltage range of (V-)-0.1 V to (V+)-3.5 V. |
| 4 | V- | power_in | Negative (lowest) power supply with recommended operating range of ±2.25 V to ±18 V dual supply or 4.5 V to 36 V single supply. |
| 5 | NC | unconnected | No internal connection. |
| 6 | OUT | output | Output with rail-to-rail swing from (V-)+0.2 to (V+)-0.2 V at RL=10kΩ or (V-)+0.35 to (V+)-0.35 V at RL=2kΩ, output current limits: 36 mA source and 30 mA sink. |
| 7 | V+ | power_in | Positive (highest) power supply with recommended operating range of ±2.25 V to ±18 V dual supply or 4.5 V to 36 V single supply. |
| 8 | NC | unconnected | No internal connection. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `OPA1641AIDGKR`
- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`
- 3D model: VSSOP-8 (KiCad packages3D, STEP)
- 3D model files: `opa1641aidgkr-etched.step` / `opa1641aidgkr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `opa1641aidgkr.step` / `opa1641aidgkr.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/opa1641) (50 pp, sha256 `00c3e0527ec56583`, retrieved 2026-09-26, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/opa1641aidgkr-datasheet.pdf)