INA199B2QDCKRQ1 from Texas Instruments, in a SC-70-6. 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 that sets the output zero level. Valid range 0V to V+. Drive from a low-impedance source (or ground for unidirectional low-side sensing).
2	GND	power_in	Device analog ground return.
3	V+	power_in	Positive supply, 2.7V to 26V (absolute max 28V). Typical bypass 0.01µF-0.1µF from V+ to GND. Iq ≤ 100µA.
4	IN+	input	Non-inverting current-sense input. Connect to the supply-side terminal of the external shunt resistor. Common-mode range -0.1V to 26V, independent of V+.
5	IN-	input	Inverting current-sense input. Connect to the load-side terminal of the external shunt resistor. Common-mode range -0.1V to 26V.
6	OUT	output	Analog voltage output. VOUT = REF + 100 × (VIN+ - VIN-) for the B2 variant (100V/V gain). Swings within the V+/GND rails.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SC-70-6
Category	Amplifiers/Comparators
Pins	6

Ordering variants

Same part, different packaging or reel option.

INA199B2QDCKRQ1
INA199B2QDCKRQ1DCKT

CAD (KiCad official)

Symbol: INA199B2QDCKRQ1
Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
3D model: SC-70-6 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Texas Instruments datasheet (None pp, sha256 2df6a8494f6d9d8b, retrieved 2026-08-17, tier: lcsc)
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