RS8752XM from Jiangsu RUNIC Tech, in a MSOP-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	OUTA	output	Amplifier A output. Rail-to-rail output, sources ~85mA and sinks ~125mA typical; swings to within ~23mV of the supply rails into a 1kOhm load.
2	-INA	input	Amplifier A inverting input. High-impedance CMOS input, input bias current typically 1pA. Common-mode range extends from -0.2V to (V+)-1.1V (=3.9V at Vs=5V).
3	+INA	input	Amplifier A non-inverting input. High-impedance CMOS input, input bias current typically 1pA. Rail-to-rail input range (Vcm = -0.2V to 3.9V at Vs=5V).
4	V-	power_in	Negative supply rail. Ground for single-supply operation, or -Vs for split-supply operation. Total supply span (V+ to V-) is 2.5V to 5.5V (7V absolute maximum). Bypass with 0.1uF close to the pin.
5	+INB	input	Amplifier B non-inverting input. High-impedance CMOS input, input bias current typically 1pA. Rail-to-rail input range (Vcm = -0.2V to 3.9V at Vs=5V).
6	-INB	input	Amplifier B inverting input. High-impedance CMOS input, input bias current typically 1pA. Common-mode range extends from -0.2V to (V+)-1.1V.
7	OUTB	output	Amplifier B output. Rail-to-rail output, sources ~85mA and sinks ~125mA typical; swings to within ~23mV of the supply rails into a 1kOhm load.
8	V+	power_in	Positive supply rail. Total supply span (V+ to V-) is 2.5V to 5.5V (7V absolute maximum). Quiescent current is typically 2.9mA per amplifier. Bypass with 0.1uF close to the pin.

Key specifications

Parameter	Value
Manufacturer	Jiangsu RUNIC Tech
Package	MSOP-8
Category	Op-amp/Cmp
Pins	8

Ordering variants

Same part, different packaging or reel option.

RS8752XM
RS8752XK
RS8752XTDC8
RS8752XQ

CAD (KiCad official)

Symbol: RS8752XM
Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
3D model: MSOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`rs8752xm.step`	123 KB	You want the bare part, or you mark your own boards.
`rs8752xm-etched.step`	1.9 MB	You want the part with `RS8752XM` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 474 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: Jiangsu RUNIC Tech datasheet (14 pp, sha256 6a79a6007a489b34, 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