OA1NP22C from STMicroelectronics, in a SC-70-5. 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	Op-amp output. Rail-to-rail swing from VCC- to VCC+ (typical output swing within a few mV of the rails at light load). Drives loads referenced anywhere between the two supply rails.
2	VCC-	power_in	Negative supply rail (ground in single-supply operation). Together with VCC+ defines the supply voltage; operating range 1.5 V to 5.5 V across the two rails.
3	IN+	input	Non-inverting analog input. Rail-to-rail common-mode range (VCC- - 0.1 V to VCC+ + 0.1 V). Input bias current 5 pA max at 25 degC, allowing direct connection to high-impedance sensors.
4	IN-	input	Inverting analog input. Rail-to-rail common-mode range (VCC- - 0.1 V to VCC+ + 0.1 V). Sets closed-loop gain via external feedback network; unity-gain stable.
5	VCC+	power_in	Positive supply rail. Supply voltage (VCC+ minus VCC-) may range from 1.5 V to 5.5 V. Absolute maximum 6 V. Bypass with a local ceramic capacitor to VCC-.

Key specifications

Parameter	Value
Manufacturer	STMicroelectronics
Package	SC-70-5
Category	Amplifiers/Comparators
Pins	5

Ordering variants

Same part, different packaging or reel option.

OA1NP22C

CAD (KiCad official)

Symbol: OA1NP22C
Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
3D model: SC-70-5 (KiCad packages3D, STEP)

Provenance

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

Datasheet: STMicroelectronics datasheet (None pp, sha256 247a4f245f4b0701, 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