# OPA2735AIDR

**Texas Instruments** · Precision Op Amps · SOIC-8

OPA2735AIDR 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 | OUT A | output | Amplifier A output with rail-to-rail swing within 50mV of the rails (20mV typ at RL = 10kΩ) and ±20mA short-circuit current. |
| 2 | -IN A | input | Amplifier A inverting input, diode-clamped to the supply rails; signals more than 0.5V beyond the rails must be limited to 10mA. |
| 3 | +IN A | input | Amplifier A non-inverting input, diode-clamped to the supply rails; common-mode range is (V−) − 0.1V to (V+) − 1.5V. |
| 4 | V- | power_in | Negative supply or ground for single-supply operation; total supply range is 2.7V to 12V (±1.35V to ±6V). |
| 5 | +IN B | input | Amplifier B non-inverting input, diode-clamped to the supply rails; common-mode range is (V−) − 0.1V to (V+) − 1.5V. |
| 6 | -IN B | input | Amplifier B inverting input, diode-clamped to the supply rails; signals more than 0.5V beyond the rails must be limited to 10mA. |
| 7 | OUT B | output | Amplifier B output with rail-to-rail swing within 50mV of the rails (20mV typ at RL = 10kΩ) and ±20mA short-circuit current. |
| 8 | V+ | power_in | Positive supply; operating range is 2.7V to 12V total supply with absolute maximum of 13.2V. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `OPA2735AIDR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `opa2735aidr-etched.step` / `opa2735aidr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `opa2735aidr.step` / `opa2735aidr.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/opa2735) (34 pp, sha256 `4888310416f3cea3`, retrieved 2026-10-06, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/opa2735aidr-datasheet.pdf)