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INA280A4QDCKRQ1

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Texas Instruments Current-Sensing Amplifiers, SC-70-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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INA280A4QDCKRQ1

Texas Instruments · Current-Sensing Amplifiers · SC-70-5

INA280A4QDCKRQ1 from Texas Instruments, in a SC-70-5. 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 OUT output Output voltage pin that carries the amplified current-sense signal.
2 GND power_in Ground reference pin for the device.
3 VS power_in Power supply pin; the recommended operating supply range is 2.7V to 20V.
4 IN+ input Connect to the supply side of the shunt resistor.
5 IN- input Connect to the load side of the shunt resistor; common-mode input range is 120V maximum.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SC-70-5
Category Operational Amplifier/Comparator
Pins 5

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 -0.3 22 V 4
Differential analog input voltage (VIN+), (VIN-) -30 30 V 4
Common-mode analog input voltage VIN+, VIN- -20 122 V 4
Operating temperature TA -55 150 °C 4
Storage temperature Tstg -65 150 °C 4
Junction temperature TJ 150 °C 4
Common-mode input range VCM 120 V 4
Operating supply range VS 2.7 5 20 V 4
Ambient temperature TA -40 125 °C 4
Common-mode rejection ratio CMRR 120 140 dB VCM = 2.7 V to 120 V, TA = -40 °C to +125 °C 5
Offset voltage, input referred Vos -150 15 150 µV 5
Power supply rejection ratio, input referred PSRR -10 1 10 µV/V VS = 2.7 V to 20 V, TA = -40 °C to +125 °C 5
Input bias current IB+ IB+ 10 20 30 µA VSENSE = 0 mV 5
Input bias current IB- IB- 10 20 30 µA VSENSE = 0 mV 5
Gain error -0.5 0.1 0.5 % GND + 50 mV ≤ VOUT ≤ VS, 200 mV 5
Gain error drift 2.5 20 ppm/°C TA = -40 °C to +125 °C 5
Swing to ground 0.005 0.025 V RLOAD = 10 kΩ, VSENSE = 0 V, TA = -40 °C to +125 °C 5
Quiescent current IQ 370 500 µA 5
Quiescent current over temperature IQ 600 µA TA = -40 °C to +125 °C 5
Supply voltage VS 2.7 20 V TA = -40 °C to +125 °C 5
Maximum capacitive load 500 pF No sustained oscillations, no isolation resistor 5
Gain (A4 devices) G 200 V/V A4 devices 5
Offset voltage drift dVos/dT 1 µV/℃ TA = -40 °C to +125 °C 5
Nonlinearity error 0.01 % 5
Common-mode rejection ratio at 50 kHz CMRR 85 dB f = 50 kHz 5
Bandwidth (A4 devices) BW 850 kHz A4 devices, CLOAD = 5 pF, VSENSE = 20 mV 5
Slew rate SR 2 V/µs 5
Settling time to 0.5% 9 µs VOUT = 4 V ± 0.1 V step, output settles to 0.5% 5
Settling time to 1% 5 µs VOUT = 4 V ± 0.1 V step, output settles to 1% 5
Voltage noise density Ven 50 nV/√Hz 5
Junction-to-ambient thermal resistance RθJA 191.6 °C/W 4
Junction-to-case (top) thermal resistance RθJC(top) 144.4 °C/W 4
Junction-to-board thermal resistance RθJB 69.2 °C/W 4
Junction-to-top characterization parameter ΨJT 46.2 °C/W 4
Junction-to-board characterization parameter ΨJB 69 °C/W 4

CAD (KiCad official)

  • Symbol: INA280A4QDCKRQ1
  • Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
  • 3D model: SC-70-5 (KiCad packages3D, STEP)
  • 3D model files: ina280a4qdckrq1-etched.step / ina280a4qdckrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ina280a4qdckrq1.step / ina280a4qdckrq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (26 pp, sha256 f4f817bb6d0d8d41, retrieved 2026-10-28, 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: 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