LM2904AS-13 from Diodes Incorporated, in a SO-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	1OUT	output	Channel 1 amplifier output. Class-AB output stage capable of sinking ~20mA and sourcing ~40mA; output swings from GND up to Vcc-1.5V.
2	1IN-	input	Channel 1 inverting input. Input bias current ~20nA typ (out of pin due to PNP input stage); differential input range up to ±36V.
3	1IN+	input	Channel 1 non-inverting input. Common-mode input range includes ground: 0 V to Vcc-1.5V.
4	GND	power_in	Ground / negative supply rail. Tie to 0 V for single-supply operation, or to the negative rail (down to -18V) for split-supply operation.
5	2IN+	input	Channel 2 non-inverting input. Common-mode input range includes ground: 0 V to Vcc-1.5V.
6	2IN-	input	Channel 2 inverting input. Input bias current ~20nA typ; differential input range up to ±36V.
7	2OUT	output	Channel 2 amplifier output. Output swings from GND up to Vcc-1.5V; short-circuit protected to GND (continuous at Vcc≤15V).
8	VCC	power_in	Positive supply voltage. 3V to 36V single supply, or +1.5V to +18V split supply. Bypass with 0.1µF ceramic to GND close to the pin.

Key specifications

Parameter	Value
Manufacturer	Diodes Incorporated
Package	SO-8
Category	Op-amp/Cmp
Pins	8

Ordering variants

Same part, different packaging or reel option.

LM2904S-13
LM2904AS-13
LM2904M8-13
LM2904AM8-13
LM2904TH-13
LM2904ATH-13

CAD (KiCad official)

Symbol: LM2904AS-13
Footprint: Package_SO:TI_SO-PowerPAD-8
3D model: SO-8 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Diodes Incorporated datasheet (16 pp, sha256 ca983890873d55d8, 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