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INA199A2RSWR

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Texas Instruments Current Sense Amplifiers, UQFN-10(1.4x1.8). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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INA199A2RSWR

Texas Instruments · Current Sense Amplifiers · UQFN-10(1.4x1.8)

INA199A2RSWR from Texas Instruments, in a UQFN-10(1.4x1.8). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 NC unconnected No internal connection; leave floating or connect to any voltage between GND and V+.
2 IN+ input Analog input connected to the supply side of the shunt resistor; both IN+ pins on the RSW package must be tied together, and the INA199A common-mode range is -0.3 V to 26 V.
3 IN+ input Analog input connected to the supply side of the shunt resistor; tie to the other IN+ pin (pin 2) on the RSW package, with the INA199A common-mode range of -0.3 V to 26 V.
4 IN- input Analog input connected to the load side of the shunt resistor; both IN- pins on the RSW package must be tied together, and the INA199A common-mode range is -0.3 V to 26 V.
5 IN- input Analog input connected to the load side of the shunt resistor; tie to the other IN- pin (pin 4) on the RSW package, with the INA199A common-mode range of -0.3 V to 26 V.
6 V+ power_in Supply pin operating from 2.7 V to 26 V; bypass close to this pin with 0.01 µF to 0.1 µF (0.1 µF recommended).
7 NC unconnected No internal connection; leave floating or connect to any voltage between GND and V+.
8 REF input Reference voltage input that may be set anywhere from 0 V to V+ and should be buffered by an op amp if driven through a resistor divider; absolute maximum range is GND - 0.3 V to (V+) + 0.3 V.
9 GND power_in Analog ground.
10 OUT output Voltage output whose swing is limited by the supply pin voltage (about 0.2 V below V+ and 0.05 V above GND at 10 kΩ load); absolute maximum range is GND - 0.3 V to (V+) + 0.3 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package UQFN-10(1.4x1.8)
Category Amplifiers/Comparators
Pins 10

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Common-mode input voltage range (version A) VCM -0.3 26 V Version A, TA = -40°C to 125°C 6
Operating supply voltage VS 2.7 26 V TA = -40°C to 125°C 6
Operating supply voltage VS 2.5 26 V TA = -20°C to 85°C 6
Quiescent current IQ 65 100 μA VSENSE = 0mV 6
Quiescent current over temperature range IQ 115 μA TA = -40°C to 125°C 6
Input offset voltage, RTI VOS -150 5 150 μV VSENSE = 0mV 6
Offset voltage drift dVOS/dT 0.1 0.5 μV/°C TA = -40°C to 125°C 6
Gain error (version A) G -1.5 0.03 1.5 % Version A, VSENSE = -5mV to 5mV, TA = -40°C to 125°C 6
Gain error drift 3 10 ppm/°C TA = -40°C to 125°C 6
Common-mode rejection ratio CMR 100 120 dB VIN+ = 0V to 26V, VSENSE = 0mV, TA = -40°C to 125°C 6
Output swing to GND VGND 0.005 0.05 V RL = 10kΩ to GND, TA = -40°C to 125°C; printed (VGND)+0.005 and (VGND)+0.05 6
Output swing to V+ rail V+ -0.05 -0.2 V Relative to V+ rail; RL = 10kΩ to GND, TA = -40°C to 125°C; printed (V+)-0.05 and (V+)-0.2 6
Maximum capacitive load 1 nF No sustained oscillation 6
Common-mode input voltage (recommended) VCM 12 V Natural convection ambient unless noted 5
Operating supply voltage (recommended, applied to V+) VS 5 V Natural convection ambient unless noted 5
Operating ambient temperature range TA -40 125 °C Natural convection ambient 5
Specified temperature range -40 125 °C 6
Operating temperature range -40 125 °C 6
Junction-to-ambient thermal resistance (RSW, UQFN 10-pin) RθJA 107.3 °C/W Thermal table, RSW (UQFN) package 5
Junction-to-case (top) thermal resistance (RSW) RθJC(top) 56.5 °C/W RSW (UQFN) package 5
Junction-to-board thermal resistance (RSW) RθJB 18.7 °C/W RSW (UQFN) package 5
Junction-to-top characterization parameter (RSW) ψJT 1.1 °C/W RSW (UQFN) package 5
Junction-to-board characterization parameter (RSW) ψJB 18.7 °C/W RSW (UQFN) package 5
Thermal resistance, UQFN (electrical characteristics table) θJA 80 °C/W UQFN package 7
Gain-bandwidth product (INA199x2) GBW 30 kHz CLOAD = 10pF, INA199x2 6
Gain (INA199x2) G 100 V/V INA199x2 6
Slew rate SR 0.4 V/μs 6
Input voltage noise density, RTI 25 nV/√Hz 6
Input bias current IB 28 μA VSENSE = 0mV 6
Input offset current IOS 0.02 μA VSENSE = 0mV 6
Power-supply rejection PSR 0.1 μV/V VS = 2.7V to 18V, VIN+ = 18V, VSENSE = 0mV 6
Nonlinearity error 0.01 % VSENSE = -5mV to 5mV 6

CAD (KiCad official)

  • Symbol: INA199A2RSWR
  • Footprint: Package_DFN_QFN:UQFN-10_1.4x1.8mm_P0.4mm
  • 3D model: UQFN-10(1.4x1.8) (KiCad packages3D, STEP)
  • 3D model files: ina199a2rswr-etched.step / ina199a2rswr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ina199a2rswr.step / ina199a2rswr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (43 pp, sha256 f48fb5be37c0cf43, retrieved 2026-10-11, 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: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF