# OPA313IDCKR

**Texas Instruments** · Operational Amplifier · SC-70-5

OPA313IDCKR from Texas Instruments, in a SC-70-5. 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 | +IN | input | Non-inverting input of the rail-to-rail op amp; input common-mode range extends 200 mV beyond both supply rails and input current should be limited to 10 mA if it exceeds the rails by 0.5 V. |
| 2 | V- | power_in | Negative supply (ground in single-supply use); rated supply range is 1.8 V to 5.5 V (±0.9 V to ±2.75 V) between V+ and V-. |
| 3 | -IN | input | Inverting input of the rail-to-rail op amp; input pins are diode-clamped to the supply rails with a 10 mA maximum input current. |
| 4 | OUT | output | Rail-to-rail Class AB output that drives loads of 10 kΩ or less, with continuous short-circuit current of about ±15 mA at 5.5 V supply and stable up to about 1 nF capacitive load in unity gain. |
| 5 | V+ | power_in | Positive supply, 1.8 V to 5.5 V, which should be bypassed with a 0.01 µF ceramic capacitor (absolute maximum supply voltage 7 V). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SC-70-5 |
| Category | Amplifiers/Comparators |
| Pins | 5 |

## CAD (KiCad official)

- Symbol: `OPA313IDCKR`
- Footprint: `Package_TO_SOT_SMD:SOT-353_SC-70-5`
- 3D model: SC-70-5 (KiCad packages3D, STEP)
- 3D model files: `opa313idckr-etched.step` / `opa313idckr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `opa313idckr.step` / `opa313idckr.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/opa313) (44 pp, sha256 `7537d7ef23bcaa53`, 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/opa313idckr-datasheet.pdf)