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INA280A3IDCKR

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

INA280A3IDCKR 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 of the current sense amplifier (INA280A3 gain of 100 V/V).
2 GND power_in Ground.
3 VS power_in Power supply, operating range 2.7 V to 20 V (absolute maximum 22 V).
4 IN+ input Connect to supply side of shunt resistor; common-mode range 2.7 V to 120 V operating, -20 V to 122 V absolute maximum.
5 IN- input Connect to load side of shunt resistor; common-mode range 2.7 V to 120 V operating, -20 V to 122 V absolute 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
Common-mode rejection ratio CMRR 120 140 dB VCM = 2.7 V to 120 V, TA = -40 °C to +125 °C 5
Common-mode rejection ratio, AC CMRR 85 dB f = 50 kHz 5
Offset voltage, input referred Vos -150 15 150 µV 5
Offset voltage drift dVos/dT 1 µV/℃ TA = -40 °C to +125 °C 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 (A3 devices) G 100 V/V A3 devices 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
Nonlinearity error 0.01 % 5
Maximum capacitive load 500 pF No sustained oscillations, no isolation resistor 5
Swing to VS power supply rail -0.07 -0.2 V RLOAD = 10 kΩ, TA = -40 °C to +125 °C (printed VS, 0.07 typ, VS, 0.2 max) 5
Swing to ground 0.005 0.025 V RLOAD = 10 kΩ, VSENSE = 0 V, TA = -40 °C to +125 °C 5
Bandwidth (A3 devices) BW 900 kHz A3 devices, CLOAD = 5 pF, VSENSE = 40 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
Supply voltage VS 2.7 20 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 (abs max) Vs -0.3 22 V 4
Differential input voltage (abs max) VIN+, VIN- -30 30 V Analog inputs, differential 4
Common-mode input voltage (abs max) -20 122 V Analog inputs, common-mode 4
Output voltage (abs max) -0.3 0.3 V GND, 0.3 to Vs + 0.3 4
Operating temperature (abs max) TA -55 150 °C 4
Junction temperature TJ 150 °C 4
Storage temperature Tstg -65 150 °C 4
ESD HBM V(ESD) -2000 2000 V Human body model, all pins 4
ESD CDM V(ESD) -1000 1000 V Charged device model, all pins 4
Common-mode input range VCM 48 120 V Min printed as VS 4
Operating supply range VS 2.7 5 20 V 4
Ambient temperature TA -40 125 °C 4
Junction-to-ambient thermal resistance RθJA 191.6 °C/W DCK (SC-70), 5 pins 4
Junction-to-case (top) thermal resistance RθJC(top) 144.4 °C/W DCK (SC-70), 5 pins 4
Junction-to-board thermal resistance RθJB 69.2 °C/W DCK (SC-70), 5 pins 4
Junction-to-top characterization parameter ΨJT 46.2 °C/W DCK (SC-70), 5 pins 4
Junction-to-board characterization parameter ΨJB 69 °C/W DCK (SC-70), 5 pins 4

CAD (KiCad official)

  • Symbol: INA280A3IDCKR
  • Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
  • 3D model: SC-70-5 (KiCad packages3D, STEP)
  • 3D model files: ina280a3idckr-etched.step / ina280a3idckr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ina280a3idckr.step / ina280a3idckr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (27 pp, sha256 b25f05be1d98f636, retrieved 2026-10-31, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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