LM2901DTBR2G from onsemi, in a TSSOP-14. 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	OUT2	output	Open-collector output of comparator 2. Requires an external pull-up resistor to VCC; can sink up to ~16 mA.
2	OUT1	output	Open-collector output of comparator 1. Requires an external pull-up resistor to VCC; can sink up to ~16 mA.
3	VCC	power_in	Positive supply. Single-supply 2 V to 36 V, or dual supply ±1 V to ±18 V referenced to GND.
4	IN1-	input	Inverting input of comparator 1. Input common-mode range includes ground (VCC minus 1.5 V max).
5	IN1+	input	Non-inverting input of comparator 1. Input common-mode range includes ground.
6	IN2-	input	Inverting input of comparator 2. Input common-mode range includes ground.
7	IN2+	input	Non-inverting input of comparator 2. Input common-mode range includes ground.
8	IN3+	input	Non-inverting input of comparator 3. Input common-mode range includes ground.
9	IN3-	input	Inverting input of comparator 3. Input common-mode range includes ground.
10	IN4+	input	Non-inverting input of comparator 4. Input common-mode range includes ground.
11	IN4-	input	Inverting input of comparator 4. Input common-mode range includes ground.
12	GND	power_in	Ground / negative supply return. Tie to 0 V in single-supply operation.
13	OUT4	output	Open-collector output of comparator 4. Requires an external pull-up resistor to VCC; can sink up to ~16 mA.
14	OUT3	output	Open-collector output of comparator 3. Requires an external pull-up resistor to VCC; can sink up to ~16 mA.

Key specifications

Parameter	Value
Manufacturer	onsemi
Package	TSSOP-14
Category	Op-amp/Cmp
Pins	14

Ordering variants

Same part, different packaging or reel option.

LM2901DTBR2GDR2G
LM2901DTBR2G

CAD (KiCad official)

Symbol: LM2901DTBR2G
Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
3D model: TSSOP-14 (KiCad packages3D, STEP)

Provenance

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

Datasheet: onsemi datasheet (14 pp, sha256 3ccf1926bcff4638, 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