# OPA694IDR

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

OPA694IDR from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | NC | unconnected | No internal connection. Leave floating or tie to a convenient net; not electrically connected to the die. |
| 2 | Inverting Input | input | Inverting input of the current-feedback op-amp. Typical inverting input bias current ±2µA; inverting input impedance ~30Ω (open-loop). Connect the feedback resistor R_F (nominally 402Ω) between this pin and the Output pin. |
| 3 | Noninverting Input | input | Noninverting (+) input of the current-feedback op-amp. Typical noninverting input bias current ±5µA; input impedance 280kΩ || 1.2pF. Common-mode input range ±2.5V typical on ±5V supplies. |
| 4 | -Vs | power_in | Negative supply rail. Typical operating supply ±5V; absolute maximum ±6.5V. Bypass with local decoupling capacitors close to the pin. |
| 5 | NC | unconnected | No internal connection. Leave floating or tie to a convenient net. |
| 6 | Output | output | Op-amp output. Delivers ±80mA typical output current with ±3.4V output swing into 100Ω load on ±5V supplies. Short-circuit current ±200mA typical. |
| 7 | +Vs | power_in | Positive supply rail. Typical operating supply ±5V; absolute maximum ±6.5V. Bypass with local decoupling capacitors close to the pin. |
| 8 | NC | unconnected | No internal connection. Leave floating or tie to a convenient net. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Op-amp/Cmp |
| Pins | 8 |

## Ordering variants

Same part, different packaging or reel option.

- `OPA694IDR`
- `OPA694IDRIDBVT`
- `OPA694IDRIDBVR`

## CAD (KiCad official)

- Symbol: `OPA694IDR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/opa694.pdf) (31 pp, sha256 `1ab0fc7590bf7ecf`, retrieved 2026-08-17, tier: manufacturer)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/opa694idr-datasheet.pdf)