AD8544ARUZ from UMW, 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	OUTA	output	Output of amplifier A. Rail-to-rail output; typical VOH = 4.985 V and VOL = 120 mV at VS = 5 V, RL = 10 kΩ to VS/2. Short-circuit current ±40 mA.
2	-INA	input	Inverting input of amplifier A. Input common-mode range (VS− − 0.2 V) to (VS+ + 0.2 V). Input bias current 1 pA typ; input resistance 100 GΩ.
3	+INA	input	Non-inverting input of amplifier A. Same rail-to-rail input range as -INA.
4	+VS	power_in	Positive power supply, +2.3 V to +5.5 V (total VS+ to VS− ≤ 5.5 V, absolute max 7 V). Bypass with 0.1 µF as close to the pin as possible.
5	+INB	input	Non-inverting input of amplifier B. Rail-to-rail input range.
6	-INB	input	Inverting input of amplifier B.
7	OUTB	output	Output of amplifier B. Rail-to-rail output stage.
8	OUTC	output	Output of amplifier C. Rail-to-rail output stage.
9	-INC	input	Inverting input of amplifier C.
10	+INC	input	Non-inverting input of amplifier C.
11	-VS	power_in	Negative power supply. Normally tied to ground; may be connected to a negative rail so that (VS+ − VS−) is between 2.7 V and 5.5 V. Bypass with 0.1 µF if not tied to ground.
12	+IND	input	Non-inverting input of amplifier D.
13	-IND	input	Inverting input of amplifier D.
14	OUTD	output	Output of amplifier D. Rail-to-rail output stage.

Key specifications

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

Ordering variants

AD8544ARUZ
AD8544ARUZARZ
AD8544ARUZRZ

CAD (KiCad official)

Symbol: AD8544ARUZ
Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
3D model: TSSOP-14 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ad8544aruz.step`	194 KB	You want the bare part, or you mark your own boards.
`ad8544aruz-etched.step`	2.3 MB	You want the part with `AD8544ARUZ` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 593 faces against 237 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: UMW datasheet (24 pp, sha256 0c724036912e042b, retrieved 2026-08-17, tier: lcsc)
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