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INA284AIDR

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Texas Instruments Current Sense Amplifiers, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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page.json ina284aidr: specified limits as data (metadata.characteristics, 36 rows from the datasheet) · Ray 14d ago
README.md ina284aidr: specified limits as data (metadata.characteristics, 36 rows from the datasheet) · Ray 14d ago

INA284AIDR

Texas Instruments · Current Sense Amplifiers · SOIC-8

INA284AIDR from Texas Instruments, in a SOIC-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 -IN input Negative differential input, connected to the low-potential side of the shunt resistor, with a common-mode range of -14 V to +80 V.
2 GND power_in Ground pin; all reference and output voltages of the device are referenced to GND.
3 REF2 input Reference voltage connection (one of two) that must stay between GND and V+, with the average of REF1 and REF2 at 9 V or less.
4 NC unconnected Not internally connected; leave floating or connect to GND.
5 OUT output Current-sense output voltage, which swings to about 0.04 V above GND and about 0.4 V below V+ at RL = 10 kΩ with V+ = 5 V, and tolerates up to 1 nF capacitive load without sustained oscillation.
6 V+ power_in Power supply pin with a specified range of +2.7 V to +18 V and quiescent current of 900 µA maximum.
7 REF1 input Reference voltage connection (one of two) that must stay between GND and V+, with the average of REF1 and REF2 at 9 V or less.
8 +IN input Positive differential input, connected to the high-potential side of the shunt resistor, with a common-mode range of -14 V to +80 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-8
Category Amplifiers/Comparators
Pins 8

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Offset voltage, RTI VOS -70 20 70 μV VSENSE=0mV 3
Offset voltage drift vs temperature dVOS/dT -1.5 0.3 1.5 μV/°C 3
Common-mode input range VCM -14 80 V 3
Common-mode rejection ratio CMRR 120 140 dB V+IN=-14V to +80V, VSENSE=0mV 3
Reference voltage rejection (INA284) -25 6 25 μV/V VREF1=VREF2=40mV to 9V, V+=18V 3
Divider accuracy -0.5 0.2 0.5 % 3
Gain error -1.6 0.4 1.6 % 3
Gain drift vs temperature 0.0008 0.005 %/°C 3
Nonlinearity error -0.01 0.01 % 3
Quiescent current IQ 600 900 μA 4
Specified supply voltage range VS 2.7 18 V 4
Specified temperature range -40 125 °C 4
Reference input voltage range 0 V 3
Maximum capacitive load 1 nF No sustained oscillation 4
Supply voltage (absolute maximum) 18 V 2
Differential voltage (V+IN)-(V-IN) -5 5 V (V+IN)-(V-IN) 2
Analog input common-mode voltage -14 80 V V+IN, V-IN common-mode 2
Input current to any pin 5 mA 2
Storage temperature -65 150 °C 2
Junction temperature 150 °C 2
ESD rating, Human Body Model (HBM) 3000 V HBM 2
ESD rating, Charged Device Model (CDM) 1000 V CDM 2
ESD rating, Machine Model (MM) 200 V MM 2
Input bias current, per pin IB 25 μA VSENSE=0mV 3
Input offset current IOS 1 μA VSENSE=0mV 3
Differential input impedance 6 kΩ 3
Reference input gain 1 V/V 3
Gain (INA284) G 500 V/V V+=+12V 3
Power-supply rejection ratio PSRR 3 μV/V VS=+2.7V to +18V, VSENSE=0mV 3
Effective bandwidth (INA284) 4 kHz 4
Voltage noise density, RTI 110 nV/√Hz 1 kHz 4
Thermal resistance, junction-to-ambient θJA 134.9 °C/W 2
Thermal resistance, junction-to-case (top) θJCtop 72.9 °C/W 2
Thermal resistance, junction-to-board θJB 61.3 °C/W 2
Junction-to-top characterization parameter ψJT 18.9 °C/W 2
Junction-to-board characterization parameter ψJB 54.3 °C/W 2

CAD (KiCad official)

  • Symbol: INA284AIDR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ina284aidr-etched.step / ina284aidr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ina284aidr.step / ina284aidr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (38 pp, sha256 f4ba33e9202a62d5, retrieved 2026-10-08, 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