# OPA2188AIDR

**Texas Instruments** · Precision OpAmps · SOIC-8

OPA2188AIDR 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 | OUT A | output | Channel A op-amp output. Rail-to-rail output stage; drives up to ±18 mA short-circuit current with output swing to within ~250 mV of the rails at 10 kΩ load. |
| 2 | -IN A | input | Channel A inverting input. High-impedance CMOS input (100 MΩ || 6 pF differential); diode-clamped to supply rails, limit external current to ≤10 mA if signal exceeds V- to V+ by more than 0.5 V. |
| 3 | +IN A | input | Channel A non-inverting input. Common-mode range extends from V- to (V+)-1.5 V; input bias current ±160 pA typical. |
| 4 | V- | power_in | Negative supply rail. Connect to ground for single-supply operation or to the negative rail for split supply. Total supply range 4 V to 36 V (±2 V to ±18 V). |
| 5 | +IN B | input | Channel B non-inverting input. Common-mode range extends from V- to (V+)-1.5 V; input bias current ±160 pA typical. |
| 6 | -IN B | input | Channel B inverting input. High-impedance CMOS input (100 MΩ || 6 pF differential); diode-clamped to supply rails, limit external current to ≤10 mA if signal exceeds V- to V+ by more than 0.5 V. |
| 7 | OUT B | output | Channel B op-amp output. Rail-to-rail output stage; drives up to ±18 mA short-circuit current with output swing to within ~250 mV of the rails at 10 kΩ load. |
| 8 | V+ | power_in | Positive supply rail. Bypass with 100 nF close to the pin. Total supply range 4 V to 36 V (±2 V to ±18 V); quiescent current 475 µA maximum per amplifier. |

## 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.

- `OPA2188AIDR`
- `OPA2188AIDRAIDGKT`
- `OPA2188AIDRAIDGKR`

## CAD (KiCad official)

- Symbol: `OPA2188AIDR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `opa2188aidr-etched.step` / `opa2188aidr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `opa2188aidr.step` / `opa2188aidr.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/lit/ds/symlink/opa2188a.pdf) (28 pp, sha256 `18cd8026c26eeda7`, retrieved 2026-08-17, tier: manufacturer)
- **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:** `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/opa2188aidr-datasheet.pdf)