AMC1311DWVR from Texas Instruments, in a SOP-8-300mil. 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	VDD1	power_in	High-side power supply, 3.0 V to 5.5 V (AMC1311B) or 4.5 V to 5.5 V (AMC1311), referenced to GND1. Requires local decoupling per Power Supply Recommendations.
2	VIN	input	High-impedance analog input, referenced to GND1. Specified linear full-scale range -0.1 V to 2 V (input clips at 2.516 V). Input impedance ~1 GΩ with 7 pF input capacitance.
3	SHTDN	input	Active-high shutdown/disable input, referenced to GND1. Includes internal pullup resistor of typical 100 kΩ, so the device defaults to shutdown if left floating.
4	GND1	power_in	High-side analog ground reference for VDD1, VIN, and SHTDN.
5	GND2	power_in	Low-side analog ground reference for VDD2, VOUTP, and VOUTN.
6	VOUTN	output	Inverting analog output of the differential output pair, referenced to GND2. Common-mode output voltage ~1.44 V, output resistance <0.2 Ω.
7	VOUTP	output	Noninverting analog output of the differential output pair, referenced to GND2. Common-mode output voltage ~1.44 V, output resistance <0.2 Ω.
8	VDD2	power_in	Low-side power supply, 3.0 V to 5.5 V, referenced to GND2. Requires local decoupling per Power Supply Recommendations.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOP-8-300mil
Category	Op-amp/Cmp
Pins	8

Ordering variants

Same part, different packaging or reel option.

AMC1311DWVR

CAD (KiCad official)

Symbol: AMC1311DWVR
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8-300mil (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`amc1311dwvr.step`	122 KB	You want the bare part, or you mark your own boards.
`amc1311dwvr-etched.step`	1.9 MB	You want the part with `AMC1311DWVR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 489 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: Texas Instruments datasheet (36 pp, sha256 043e1fd40d4b9013, 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