ADA4505-1ARJZ from UMW, in a SOT-23-5. 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	OUT	output	Amplifier output. Rail-to-rail; short-circuit current typ ±3.8 mA at 1.8 V supply and ±40 mA at 5 V supply; short-circuit to GND rated indefinite.
2	V-	power_in	Negative supply rail. Connect to GND for single-supply 1.8 V to 5 V operation, or to -0.9 V to -2.5 V for dual-supply operation. Total supply (V+ to V-) must not exceed 5.5 V absolute maximum.
3	+IN	input	Non-inverting input. Rail-to-rail common-mode range (0 V to V+). Typ input bias current 0.5 pA; input resistance ~220 GΩ; common-mode input capacitance ~4.7 pF. Internal clamp diodes to supply rails - limit input current to ≤10 mA when signal exceeds a rail by 0.1 V.
4	-IN	input	Inverting input. Rail-to-rail common-mode range (0 V to V+). Typ input bias current 0.5 pA; differential input capacitance ~2.5 pF. Internal clamp diodes to supply rails - limit input current to ≤10 mA when signal exceeds a rail by 0.1 V.
5	V+	power_in	Positive supply rail. 1.8 V to 5 V (single-supply) or +0.9 V to +2.5 V (dual-supply). Absolute maximum supply voltage 5.5 V. Typical supply current 10 µA (max 11.5 µA at 1.8 V, 10.5 µA at 5 V).

Key specifications

Parameter	Value
Manufacturer	UMW
Package	SOT-23-5
Category	Op-amp/Cmp
Pins	5

Ordering variants

ADA4505-1ARJZ

CAD (KiCad official)

Symbol: ADA4505-1ARJZ
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ada4505-1arjz.step`	85 KB	You want the bare part, or you mark your own boards.
`ada4505-1arjz-etched.step`	2.0 MB	You want the part with `ADA4505-1ARJZ` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 514 faces against 102 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 (19 pp, sha256 d40a0d9cc85f7873, 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