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INA181A3IDCKR

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TEXAS INSTRUMENTS Global Sourcing Parts, SC-70-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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INA181A3IDCKR

TEXAS INSTRUMENTS · Global Sourcing Parts · SC-70-6

INA181A3IDCKR from TEXAS INSTRUMENTS, in a SC-70-6. 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 REF input Reference input that sets the output zero-current level; it may be set anywhere from 0 V to VS, and for unidirectional use it is tied to GND.
2 GND power_in Analog ground pin for the current-sense amplifier.
3 VS power_in Analog supply pin, specified for 2.7 V to 5.5 V.
4 IN+ input Positive current-sense amplifier input; for high-side sensing connect to the bus-voltage side of the sense resistor, and for low-side sensing connect to the load side.
5 IN- input Negative current-sense amplifier input; for high-side sensing connect to the load side of the sense resistor, and for low-side sensing connect to the ground side.
6 OUT output Output voltage pin, which swings between GND and VS and is limited to a maximum output current of 8 mA by the absolute maximum ratings.

Key specifications

Parameter Value
Manufacturer TEXAS INSTRUMENTS
Package SC-70-6
Category Global Sourcing Parts
Pins 6

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage VS 6 V 7
Differential input voltage (VIN+)-(VIN-) -26 26 V 7
Common-mode input voltage VCM -0.3 26 V Referenced to GND (minimum GND, 0.3 V) 7
Input voltage range at REF pin -0.3 V Referenced to GND; upper limit printed as VS + 0.3 V 7
Output voltage VOUT -0.3 V Referenced to GND; upper limit printed as VS + 0.3 V 7
Maximum output current IOUT 8 mA 7
Operating temperature range, natural convection (absolute maximum) TA -55 150 °C 7
Junction temperature TJ 150 °C 7
Storage temperature Tstg -65 150 °C 7
Common-mode input voltage (IN+ and IN-) VCM -0.2 12 26 V 7
Operating supply voltage VS 2.7 5 5.5 V 7
Operating temperature range, natural convection TA -40 125 °C 7
Common-mode rejection ratio, RTI CMRR 84 100 dB VIN+ = 0V to 26V, VSENSE = 0mV, TA = -40°C to +125°C 8
Input offset voltage, RTI VOS -150 25 150 µV VSENSE = 0mV, VIN+ = 0V 8
Input offset voltage, RTI VOS -500 100 500 µV VSENSE = 0mV 8
Offset voltage drift, RTI dVOS/dT 0.2 1 µV/°C VSENSE = 0mV, TA = -40°C to +125°C 8
Power supply rejection ratio, RTI PSRR -40 8 40 µV/V VS = 2.7V to 5.5V, VIN+ = 12V, VSENSE = 0mV 8
Input offset current IIO -0.05 0.05 µA VSENSE = 0mV 8
Gain error EG -1 0.1 1 % VOUT = 0.5V to VS, 0.5V, TA = -40°C to +125°C 8
Gain error vs temperature 1.5 20 ppm/°C TA = -40°C to +125°C 8
Nonlinearity error -0.01 0.01 % VOUT = 0.5V to VS, 0.5V 8
Maximum capacitive load 1 nF No sustained oscillation 8
Voltage output swing to GND VSN 0.0005 0.005 V RL = 10kΩ to GND, TA = -40°C to +125°C; referenced to GND 8
Quiescent current (INA181) IQ 195 260 µA VSENSE = 0mV 8
Quiescent current (INA181) IQ 300 µA VSENSE = 0mV, TA = -40°C to +125°C 8
Gain (A3 device) G 100 V/V A3 device 8
Bandwidth (A3 device) BW 150 kHz A3 device, CLOAD = 10pF 8
Slew rate SR 2 V/µs 8
Junction-to-ambient thermal resistance (DCK, SC70-6) RθJA 188 °C/W DCK (SC70) 6-pin package 7
Junction-to-case (top) thermal resistance (DCK, SC70-6) RθJC(top) 140.8 °C/W DCK (SC70) 6-pin package 7
Junction-to-board thermal resistance (DCK, SC70-6) RθJB 78.8 °C/W DCK (SC70) 6-pin package 7
Junction-to-top characterization parameter (DCK, SC70-6) ψJT 62.1 °C/W DCK (SC70) 6-pin package 7
Junction-to-board characterization parameter (DCK, SC70-6) ψJB 78.5 °C/W DCK (SC70) 6-pin package 7

CAD (KiCad official)

  • Symbol: INA181A3IDCKR
  • Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
  • 3D model: SC-70-6 (KiCad packages3D, STEP)
  • 3D model files: ina181a3idckr-etched.step / ina181a3idckr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ina181a3idckr.step / ina181a3idckr.glb are the bare package body.

Provenance

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

  • Datasheet: TEXAS INSTRUMENTS datasheet (62 pp, sha256 022ecc5f4e9d0a5b, retrieved 2026-10-18, 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