# OPA1604AIDR

**Texas Instruments** · Operational Amplifier · SOIC-14

OPA1604AIDR from Texas Instruments, in a SOIC-14. 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 | Output of amplifier channel A. Rail-to-rail output, capable of +/-30mA drive. |
| 2 | -IN A | input | Inverting input of amplifier channel A. Bipolar input; typical bias current +/-20nA. |
| 3 | +IN A | input | Non-inverting input of amplifier channel A. Common-mode range (V-)+2 to (V+)-2. |
| 4 | V+ | power_in | Positive supply. Vs range +/-2.25V to +/-18V (total 4.5V to 36V). Quiescent current 2.6mA per channel. |
| 5 | +IN B | input | Non-inverting input of amplifier channel B. |
| 6 | -IN B | input | Inverting input of amplifier channel B. |
| 7 | OUT B | output | Output of amplifier channel B. |
| 8 | OUT C | output | Output of amplifier channel C. |
| 9 | -IN C | input | Inverting input of amplifier channel C. |
| 10 | +IN C | input | Non-inverting input of amplifier channel C. |
| 11 | V- | power_in | Negative supply. Vs range +/-2.25V to +/-18V. Can be tied to GND for single-supply operation (4.5V to 36V total). |
| 12 | +IN D | input | Non-inverting input of amplifier channel D. |
| 13 | -IN D | input | Inverting input of amplifier channel D. |
| 14 | OUT D | output | Output of amplifier channel D. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Op-amp/Cmp |
| Pins | 14 |

## Ordering variants

Same part, different packaging or reel option.

- `OPA1604AIDR`
- `OPA1604AIDRIPWR`
- `OPA1604AIDRIPW`

## CAD (KiCad official)

- Symbol: `OPA1604AIDR`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files: `opa1604aidr-etched.step` / `opa1604aidr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `opa1604aidr.step` / `opa1604aidr.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/opa1604a.pdf) (28 pp, sha256 `97e105cafacb3181`, 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/opa1604aidr-datasheet.pdf)