component
OPA4991IDR
Public Made by Adomby adom
Texas Instruments Operational Amplifier, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownOPA4991IDR
Texas Instruments · Operational Amplifier · SOIC-14
OPA4991IDR 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 | OUT1 | output | Output of channel 1; rail-to-rail low impedance output, capable of sourcing or sinking ±75 mA |
| 2 | IN1- | input | Inverting input of channel 1; high impedance input operating with common-mode range (V-) - 0.1 V to (V+) + 0.1 V |
| 3 | IN1+ | input | Noninverting input of channel 1; high impedance input operating with common-mode range (V-) - 0.1 V to (V+) + 0.1 V |
| 4 | V+ | power_in | Positive power supply rail; operating voltage 2.7 V to 40 V relative to V- |
| 5 | IN2+ | input | Noninverting input of channel 2; high impedance input operating with common-mode range (V-) - 0.1 V to (V+) + 0.1 V |
| 6 | IN2- | input | Inverting input of channel 2; high impedance input operating with common-mode range (V-) - 0.1 V to (V+) + 0.1 V |
| 7 | OUT2 | output | Output of channel 2; rail-to-rail low impedance output, capable of sourcing or sinking ±75 mA |
| 8 | OUT3 | output | Output of channel 3; rail-to-rail low impedance output, capable of sourcing or sinking ±75 mA |
| 9 | IN3- | input | Inverting input of channel 3; high impedance input operating with common-mode range (V-) - 0.1 V to (V+) + 0.1 V |
| 10 | IN3+ | input | Noninverting input of channel 3; high impedance input operating with common-mode range (V-) - 0.1 V to (V+) + 0.1 V |
| 11 | V- | power_in | Negative power supply rail; reference node for all signal inputs and outputs |
| 12 | IN4+ | input | Noninverting input of channel 4; high impedance input operating with common-mode range (V-) - 0.1 V to (V+) + 0.1 V |
| 13 | IN4- | input | Inverting input of channel 4; high impedance input operating with common-mode range (V-) - 0.1 V to (V+) + 0.1 V |
| 14 | OUT4 | output | Output of channel 4; rail-to-rail low impedance output, capable of sourcing or sinking ±75 mA |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Amplifiers/Comparators |
| Pins | 14 |
CAD (KiCad official)
- Symbol:
OPA4991IDR - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files:
opa4991idr-etched.step/opa4991idr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);opa4991idr.step/opa4991idr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (88 pp, sha256
c5517cf6752ab2a4, retrieved 2026-09-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).