OPA2990IDR 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	OUT1	output	Amplifier channel 1 output. Rail-to-rail output stage, capable of ±80 mA short-circuit current.
2	IN1-	input	Inverting input of amplifier channel 1. Rail-to-rail input; common-mode range extends beyond both supply rails.
3	IN1+	input	Noninverting input of amplifier channel 1. Rail-to-rail input; common-mode range extends beyond both supply rails.
4	V-	power_in	Negative (lowest) power-supply pin. Total supply range 2.7 V to 40 V (single-supply) or ±1.35 V to ±20 V (dual-supply). Bypass to V+ with a 0.1 µF ceramic.
5	IN2+	input	Noninverting input of amplifier channel 2. Rail-to-rail input; common-mode range extends beyond both supply rails.
6	IN2-	input	Inverting input of amplifier channel 2. Rail-to-rail input; common-mode range extends beyond both supply rails.
7	OUT2	output	Amplifier channel 2 output. Rail-to-rail output stage, capable of ±80 mA short-circuit current.
8	V+	power_in	Positive (highest) power-supply pin. Total supply range 2.7 V to 40 V (single-supply) or ±1.35 V to ±20 V (dual-supply). Bypass to V- with a 0.1 µF ceramic.

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.

OPA2990IDR
OPA2990IDRDDF
OPA2990IDRTDDF
OPA2990IDRPW
OPA2990IDRPWR
OPA2990IDRDGK
OPA2990IDRDGKR
OPA2990IDRDSG
OPA2990IDRDSGR
OPA2990IDRDGS
OPA2990IDRDGSR
OPA2990IDRRUG
OPA2990IDRRUGR

CAD (KiCad official)

Symbol: OPA2990IDR
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`opa2990idr.step`	122 KB	You want the bare part, or you mark your own boards.
`opa2990idr-etched.step`	2.2 MB	You want the part with `OPA2990IDR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 546 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Texas Instruments datasheet (94 pp, sha256 42caa2d3d8b666e4, 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