MC33272ADR2G from onsemi, in a SOP-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 amplifier 1. NPN output stage with symmetrical source/sink capability (±37 mA typ short-circuit current); swings within ~1 V of VCC and VEE rails.
2	IN1-	input	Inverting input of amplifier 1. Bipolar input with ~300 nA typical input bias current and 16 MΩ differential input resistance.
3	IN1+	input	Non-inverting input of amplifier 1. Common-mode range from VEE to (VCC - 1.8 V); do not exceed VCC or VEE on either input.
4	VEE	power_in	Negative supply / ground. Total supply (VCC - VEE) rated up to +36 V. In single-supply operation, tie to ground.
5	IN2+	input	Non-inverting input of amplifier 2. Common-mode range from VEE to (VCC - 1.8 V); do not exceed VCC or VEE on either input.
6	IN2-	input	Inverting input of amplifier 2. Bipolar input with ~300 nA typical input bias current and 16 MΩ differential input resistance.
7	OUT2	output	Output of amplifier 2. NPN output stage with symmetrical source/sink capability (±37 mA typ short-circuit current); unity-gain stable with capacitive loads up to 500 pF.
8	VCC	power_in	Positive supply. +3.0 V to +36 V single-supply, or ±1.5 V to ±18 V split-supply. Quiescent current ~2.15 mA per amplifier.

Key specifications

Parameter	Value
Manufacturer	onsemi
Package	SOP-8
Category	Op-amp/Cmp
Pins	8

Ordering variants

Same part, different packaging or reel option.

MC33272ADR2GD
MC33272ADR2G
MC33272ADR2GP
MC33272ADR2GAPG
MC33272ADR2GDG
MC33272ADR2GDTB
MC33272ADR2GDTBG

CAD (KiCad official)

Symbol: MC33272ADR2G
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`mc33272adr2g.step`	122 KB	You want the bare part, or you mark your own boards.
`mc33272adr2g-etched.step`	2.6 MB	You want the part with `MC33272ADR2G` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 628 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: onsemi datasheet (16 pp, sha256 d10ac1a1a835b1ee, 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