INA225AIDGKR from Texas Instruments, in a VSSOP-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	IN+	input	Non-inverting analog input. Connect to the supply side of the external current-sense shunt resistor. Common-mode range 0 V to 36 V, independent of Vs.
2	GND	power_in	Analog ground reference for the device.
3	VS	power_in	Positive power supply, 2.7 V to 36 V. Bypass with a 0.1 µF capacitor to GND close to the pin.
4	OUT	output	Analog output voltage proportional to the sensed shunt voltage times the selected gain, referenced to REF. Output swings from (VGND + tens of mV) to (VS − 0.05 V).
5	GS0	input	Digital gain-select input bit 0. Tie to VS or GND to program gain in combination with GS1 (25/50/100/200 V/V). VIL ≤ 0.6 V, VIH ≥ 2 V.
6	GS1	input	Digital gain-select input bit 1. Tie to VS or GND to program gain in combination with GS0. VIL ≤ 0.6 V, VIH ≥ 2 V.
7	REF	input	Reference input voltage that sets the output zero level, allowing bidirectional current sensing. Valid range 0 V to VS.
8	IN-	input	Inverting analog input. Connect to the load side of the external current-sense shunt resistor. Common-mode range 0 V to 36 V, independent of Vs.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	VSSOP-8
Category	Op-amp/Cmp
Pins	8

Ordering variants

Same part, different packaging or reel option.

INA225AIDGKR
INA225AIDGKT

CAD (KiCad official)

Symbol: INA225AIDGKR
Footprint: Package_SO:VSSOP-8_2.3x2mm_P0.5mm
3D model: VSSOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ina225aidgkr.step`	122 KB	You want the bare part, or you mark your own boards.
`ina225aidgkr-etched.step`	2.2 MB	You want the part with `INA225AIDGKR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 553 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 (33 pp, sha256 35d972271f73adf8, 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