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INA238AIDGSR

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Texas Instruments Current-Sensing Amplifiers, VSSOP-10-0.5mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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INA238AIDGSR

Texas Instruments · Current-Sensing Amplifiers · VSSOP-10-0.5mm

INA238AIDGSR from Texas Instruments, in a VSSOP-10-0.5mm. 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 A1 input I2C address pin; connect to GND, SCL, SDA, or VS to select the device address.
2 A0 input I2C address pin; connect to GND, SCL, SDA, or VS to select the device address.
3 ALERT output Open-drain alert output whose default state is active low and must be pulled up by an external resistor.
4 SDA bidirectional Open-drain bidirectional I2C data line.
5 SCL input I2C clock input.
6 VS power_in Power supply input, 2.7V to 5.5V.
7 GND power_in Ground reference for the device.
8 VBUS power_in Bus voltage sense input, common-mode range -0.3V to 85V per the absolute maximum ratings.
9 IN- input Negative differential input; for high-side use connect to the load side of the sense resistor, and for low-side use connect to the ground side of the sense resistor.
10 IN+ input Positive differential input; for high-side use connect to the power supply side of the sense resistor, and for low-side use connect to the load side of the sense resistor.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VSSOP-10-0.5mm
Category Operational Amplifier/Comparator
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
Supply voltage VS 6 V 3
Differential input voltage VIN+, VIN- -40 40 V Differential (VIN+) - (VIN-) 3
Common-mode input voltage VIN+, VIN- -0.3 85 V Common-mode 3
Bus voltage input VVBUS -0.3 85 V 3
Digital input/output voltage VIO -0.3 6 V SDA, SCL 3
Input current into any pin IIN 5 mA 3
Digital output current IOUT 10 mA 3
Junction temperature TJ 150 °C 3
Storage temperature Tstg -65 150 °C 3
Common-mode input range VCM -0.3 85 V 4
Operating supply range VS 2.7 5.5 V 4
Ambient temperature TA -40 125 °C 4
Common-mode input range VCM -0.3 85 V TA = -40°C to +125°C 5
Bus voltage input range VVBUS 0 85 V 5
Common-mode rejection CMRR 140 160 dB -0.3V < VCM < 85V, TA = -40°C to +125°C 5
Shunt voltage input range VDIFF -163.84 163.84 mV TA = -40°C to +125°C, ADCRANGE = 0 5
Shunt voltage input range VDIFF -40.96 40.96 mV TA = -40°C to +125°C, ADCRANGE = 1 5
Shunt offset voltage Vos -5 1.5 5 µV VCM = 48V 5
Shunt offset voltage drift dVos/dT -20 2 20 nV/°C TA = -40°C to +125°C 5
Shunt offset voltage vs power supply PSRR -1 0.1 1 µV/V VS = 2.7V to 5.5V, TA = -40°C to +125°C 5
VBUS offset voltage Vos_bus -5 1 5 mV VBUS = 20mV 5
VBUS offset voltage drift dVos/dT -40 4 40 µV/°C TA = -40°C to +125°C 5
Input bias current IB 0.1 2.5 nA Either input, IN+ or IN-, VCM = 85V 5
VBUS pin input impedance ZVBUS 0.8 1 1.2 MΩ Active mode 5
VBUS pin leakage current IVBUS 10 nA Shutdown mode, VBUS = 85V 5
Shunt voltage gain error GSERR -0.1 0.01 0.1 % 5
Shunt voltage gain error drift GS_DRFT -25 25 ppm/°C 5
VBUS voltage gain error GBERR -0.1 0.01 0.1 % 5
VBUS voltage gain error drift GB_DRFT -25 25 ppm/°C 5
Power total measurment error (TME) PTME -0.7 0.7 % TA = -40°C to +125°C, at full scale 5
Integral Non-Linearity INL -2 2 m% 5
Internal oscillator frequency tolerance FOSC_TOL -0.5 0.5 % TA = 25°C 5
Internal oscillator frequency tolerance FOSC_TOL -1 1 % TA = -40°C to +125°C 5
Measurement range -40 125 °C 6
Temperature accuracy -1 0.15 1 °C TA = 25°C 6
Temperature accuracy -2 0.2 2 °C TA = -40°C to +125°C 6
Supply voltage VS 2.7 5.5 V 6
Quiescent current IQ 640 750 µA VSENSE = 0V 6
Quiescent current IQ 1.1 mA VSENSE = 0V, TA = -40°C to +125°C 6
Quiescent current, shutdown IQSD 2.8 5 µA Shutdown mode 6
Device start-up time TPOR 300 µs Power-up (NPOR) 6
Device start-up time TPOR 60 µs From shutdown mode 6
Logic input level, high VIH 1.2 5.5 V SDA, SCL 6
Logic input level, low VIL 0.4 V GND 6
Logic output level, low VOL 0.4 V IOL = 3mA 6
Digital leakage input current IIO_LEAK -1 1 µA 0 ≤ VIN ≤ VS 6
VBUS offset voltage vs power supply PSRR 1.1 mV/V VS = 2.7V to 5.5V 5
Input differential impedance RDIFF 92 kΩ Active mode, VIN+ - VIN- < 164mV 5
ADC resolution 16 Bits 5
Differential Non-Linearity DNL 0.2 LSB 5
Internal oscillator frequency FOSC 1 MHz 5
Junction-to-ambient thermal resistance RθJA 177.6 °C/W DGS 10 pins 4
Junction-to-case (top) thermal resistance RθJC(top) 66.4 °C/W DGS 10 pins 4
Junction-to-board thermal resistance RθJB 99.5 °C/W DGS 10 pins 4
Junction-to-top characterization parameter ΨJT 9.7 °C/W DGS 10 pins 4
Junction-to-board characterization parameter YJB 97.6 °C/W DGS 10 pins 4

CAD (KiCad official)

  • Symbol: INA238AIDGSR
  • Footprint: Package_SO:MSOP-10_3x3mm_P0.5mm
  • 3D model: VSSOP-10-0.5mm (KiCad packages3D, STEP)
  • 3D model files: ina238aidgsr-etched.step / ina238aidgsr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ina238aidgsr.step / ina238aidgsr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (46 pp, sha256 66d47e5eec628369, retrieved 2026-10-28, tier: manufacturer)
  • 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