component
OPA2991IDR
Public Made by Adomby adom
Texas Instruments Operational Amplifier, SOIC-8. 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
markdownOPA2991IDR
Texas Instruments · Operational Amplifier · SOIC-8
OPA2991IDR 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 | Output of channel A; rail-to-rail output with ±75 mA output current and 1 nF capacitive load drive capability. |
| 2 | -IN A | input | Inverting input of channel A; input voltage range (V-) - 0.2 V to (V+) + 0.2 V, diode-clamped to the supply rails. |
| 3 | +IN A | input | Noninverting input of channel A; input voltage range (V-) - 0.2 V to (V+) + 0.2 V, diode-clamped to the supply rails. |
| 4 | V- | power_in | Negative (lowest) power supply; supply voltage VS = (V+) - (V-) is 2.7 V to 40 V. |
| 5 | +IN B | input | Noninverting input of channel B; input voltage range (V-) - 0.2 V to (V+) + 0.2 V, diode-clamped to the supply rails. |
| 6 | -IN B | input | Inverting input of channel B; input voltage range (V-) - 0.2 V to (V+) + 0.2 V, diode-clamped to the supply rails. |
| 7 | OUT B | output | Output of channel B; rail-to-rail output with ±75 mA output current and 1 nF capacitive load drive capability. |
| 8 | V+ | power_in | Positive (highest) power supply; supply voltage VS = (V+) - (V-) is 2.7 V to 40 V, absolute maximum 42 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
OPA2991IDR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
opa2991idr-etched.step/opa2991idr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);opa2991idr.step/opa2991idr.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 2026-10-01, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).