# OPA2355DGSA

**Texas Instruments** · Operational Amplifier · VSSOP-10-0.5mm

OPA2355DGSA from Texas Instruments, in a VSSOP-10-0.5mm. 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 pin for channel A of the amplifier. |
| 2 | -IN A | input | Inverting input pin for channel A. |
| 3 | +IN A | input | Noninverting input pin for channel A. |
| 4 | V- | power_in | Negative power supply pin. |
| 5 | ENABLE A | input | Amplifier power-down control for channel A: low disables the amplifier, high gives normal operation, and the pin must be driven. |
| 6 | ENABLE B | input | Amplifier power-down control for channel B: low disables the amplifier, high gives normal operation, and the pin must be driven. |
| 7 | +IN B | input | Noninverting input pin for channel B. |
| 8 | -IN B | input | Inverting input pin for channel B. |
| 9 | OUT B | output | Output pin for channel B of the amplifier. |
| 10 | V+ | power_in | Positive power supply pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-10-0.5mm |
| Category | Operational Amplifier/Comparator |
| Pins | 10 |

## CAD (KiCad official)

- Symbol: `OPA2355DGSA`
- Footprint: `Package_SO:MSOP-10_3x3mm_P0.5mm`
- 3D model: VSSOP-10-0.5mm (KiCad packages3D, STEP)
- 3D model files: `opa2355dgsa-etched.step` / `opa2355dgsa-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `opa2355dgsa.step` / `opa2355dgsa.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/opa355) (48 pp, sha256 `fd33cb42c3ce67ce`, 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/opa2355dgsa-datasheet.pdf)