LM2904DT from STMicroelectronics, 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	Output of op-amp #1. Class-AB output stage; output can swing from 0 V up to approximately (VCC+ - 1.5 V). Short-circuit output current is approximately 40 mA and short-circuit duration is infinite (subject to power dissipation limits).
2	In1-	input	Inverting input of op-amp #1. High-impedance input; typical input bias current 20 nA, typical input offset current 2 nA. Common-mode input range extends from VCC- (ground in single-supply operation) up to VCC+ - 1.5 V.
3	In1+	input	Non-inverting input of op-amp #1. High-impedance input; common-mode range includes the negative supply rail (VCC-). Absolute maximum input voltage is -0.3 V to 32 V (LM2904/A) or -0.3 V to VCC+0.3 V (LM2904W/AW).
4	Vcc-	power_in	Negative supply rail (or GND in single-supply operation). Total supply voltage VCC+ to VCC- must be between 3 V and 30 V (absolute max 32 V or ±16 V).
5	In2+	input	Non-inverting input of op-amp #2. High-impedance input; common-mode input range includes the negative supply rail. Same input specifications as In1+.
6	In2-	input	Inverting input of op-amp #2. High-impedance input; same input bias/offset specifications as In1-.
7	Out2	output	Output of op-amp #2. Class-AB output stage; output swing 0 V to (VCC+ - 1.5 V). Short-circuit output current approximately 40 mA.
8	Vcc+	power_in	Positive supply rail. Operating range 3 V to 30 V (single-supply) or ±1.5 V to ±16 V (dual-supply); absolute maximum 32 V or ±16 V. Very low supply current, essentially independent of supply voltage.

Key specifications

Parameter	Value
Manufacturer	STMicroelectronics
Package	SOIC-8
Category	Op-amp/Cmp
Pins	8

Ordering variants

Same part, different packaging or reel option.

LM2904DT
LM2904DTD
LM2904DTDR
LM2904DTDG4
LM2904DTPT
LM2904DTST
LM2904DTC2T

CAD (KiCad official)

Symbol: LM2904DT
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
`lm2904dt.step`	122 KB	You want the bare part, or you mark your own boards.
`lm2904dt-etched.step`	1.6 MB	You want the part with `LM2904DT` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 412 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: STMicroelectronics datasheet (28 pp, sha256 f44e9d8956cbcbb3, 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