INA199A2DCKR from Texas Instruments, in a SOT-363-6. 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	REF	input	Reference voltage input; sets the output when V_SENSE = 0. Valid range 0 V to V+. Typically tied to GND (unidirectional) or V+/2 (bidirectional sensing).
2	GND	power_in	Device ground / negative supply reference.
3	V+	power_in	Positive power supply, 2.7 V to 26 V. Bypass with 0.01 µF to 0.1 µF ceramic capacitor to GND. Quiescent current 100 µA (max).
4	IN+	input	Non-inverting analog input; connect to the supply side of the external shunt resistor. Common-mode input range -0.3 V to 26 V (independent of V+).
5	IN-	input	Inverting analog input; connect to the load side of the external shunt resistor. Differential input range -26 V to +26 V (abs max).
6	OUT	output	Analog voltage output = REF + G × (V_IN+ − V_IN-). For INA199A2, gain G = 100 V/V. Rail-to-rail output stage; drives up to ~1 nF load without oscillation.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOT-363-6
Category	Op-amp/Cmp
Pins	6

Ordering variants

Same part, different packaging or reel option.

INA199A2DCKR
INA199A2DCKRDCKT
INA199A2DCKRRSWR
INA199A2DCKRRSWT

CAD (KiCad official)

Symbol: INA199A2DCKR
Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
3D model: SOT-363-6 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Texas Instruments datasheet (35 pp, sha256 c2346bb59a217ea6, retrieved 2026-08-17, tier: manufacturer)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
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