# OPA336UA

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

OPA336UA from Texas Instruments, in a SOIC-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 connection; the datasheet marks this pin NC = No Connection on the SO-8 pinout figure. |
| 2 | -In | input | Inverting input; the common-mode range extends from (V-) -0.2V to (V+) -1V, and signal inputs swinging more than 0.3V beyond the supply rails should be limited to 10mA. |
| 3 | +In | input | Non-inverting input; the common-mode range extends from (V-) -0.2V to (V+) -1V, and signal inputs swinging more than 0.3V beyond the supply rails should be limited to 10mA. |
| 4 | V- | power_in | Negative power supply (ground in single-supply operation); the device is specified for a total supply of 2.3V to 5.5V. |
| 5 | NC | unconnected | No connection; the datasheet marks this pin NC = No Connection on the SO-8 pinout figure. |
| 6 | Output | output | Rail-to-rail output that swings to within 3mV of the supplies with a 100kΩ load. |
| 7 | V+ | power_in | Positive power supply; the device is specified for a total supply of 2.3V to 5.5V, with an absolute maximum of 7.5V. |
| 8 | NC | unconnected | No connection; the datasheet marks this pin NC = No Connection on the SO-8 pinout figure. |

## Key specifications

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

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input Offset Voltage | VOS | -125 | 60 | 125 | µV |  | 3 |
| Power Supply Rejection Ratio | PSRR |  | 25 | 100 | µV/V | VS = 2.3V to 5.5V | 3 |
| Power Supply Rejection Ratio, Over Temperature |  |  |  | 130 | µV/V | VS = 2.3V to 5.5V | 3 |
| Input Bias Current | IB | -10 | 1 | 10 | pA |  | 3 |
| Input Bias Current, Over Temperature |  | -60 |  | 60 | pA |  | 3 |
| Input Offset Current | IOS | -10 | 1 | 10 | pA |  | 3 |
| Common-Mode Rejection Ratio | CMRR | 80 | 90 |  | dB | –0.2V < VCM < (V+) –1V | 3 |
| Common-Mode Rejection Ratio, Over Temperature |  | 76 |  |  | dB | –0.2V < VCM < (V+) –1V | 3 |
| Common-Mode Voltage Range | VCM | -0.2 |  |  | V |  | 3 |
| Open-Loop Voltage Gain | AOL | 100 | 115 |  | dB | RL = 25kΩ, 100mV < VO < (V+) – 100mV | 3 |
| Open-Loop Voltage Gain, Over Temperature |  | 100 |  |  | dB | RL = 25kΩ, 100mV < VO < (V+) – 100mV | 3 |
| Open-Loop Voltage Gain | AOL | 90 | 106 |  | dB | RL = 5kΩ, 500mV < VO < (V+) – 500mV | 3 |
| Open-Loop Voltage Gain, Over Temperature |  | 90 |  |  | dB | RL = 5kΩ, 500mV < VO < (V+) – 500mV | 3 |
| Voltage Output Swing from Rail | VO |  |  | 3 | mV | RL = 100kΩ, AOL ≥ 70dB | 3 |
| Voltage Output Swing from Rail | VO |  | 20 | 100 | mV | RL = 25kΩ, AOL ≥ 90dB | 3 |
| Voltage Output Swing from Rail, Over Temperature |  |  |  | 100 | mV | RL = 25kΩ, AOL ≥ 90dB | 3 |
| Voltage Output Swing from Rail | VO |  | 70 | 500 | mV | RL = 5kΩ, AOL ≥ 90dB | 3 |
| Voltage Output Swing from Rail, Over Temperature |  |  |  | 500 | mV | RL = 5kΩ, AOL ≥ 90dB | 3 |
| Specified Voltage Range | VS | 2.3 |  | 5.5 | V |  | 3 |
| Minimum Operating Voltage |  | 2.1 |  |  | V |  | 3 |
| Quiescent Current (per amplifier) | IQ |  | 20 | 32 | µA | IO = 0 | 3 |
| Quiescent Current, Over Temperature (per amplifier) |  |  |  | 36 | µA | IO = 0 | 3 |
| Specified Temperature Range |  | -40 |  | 85 | °C |  | 3 |
| Operating Temperature Range |  | -55 |  | 125 | °C |  | 3 |
| Storage Temperature Range |  | -55 |  | 125 | °C |  | 3 |
| Supply Voltage |  |  |  | 7.5 | V |  | 2 |
| Signal Input Terminals Current |  |  |  | 10 | mA |  | 2 |
| Operating Temperature |  | -55 |  | 125 | °C |  | 2 |
| Storage Temperature |  | -55 |  | 125 | °C |  | 2 |
| Junction Temperature |  |  |  | 150 | °C |  | 2 |
| Lead Temperature |  |  |  | 300 | °C | soldering, 10s | 2 |
| ESD Rating, Human Body Model | HBM |  |  | 500 | V | Human Body Model (HBM) | 2 |
| ESD Rating, Machine Model | MM |  |  | 100 | V | Machine Model (MM) | 2 |
| Thermal Resistance, junction-to-ambient | θJA |  | 150 |  | °C/W | SO-8 Surface-Mount | 3 |

## CAD (KiCad official)

- Symbol: `OPA336UA`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `opa336ua-etched.step` / `opa336ua-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `opa336ua.step` / `opa336ua.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/opa2336) (30 pp, sha256 `c9413cc89f5cf311`, retrieved 2026-10-11, tier: lcsc)
- **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/opa336ua-datasheet.pdf)