component
INA238AQDGSRQ1
Public Made by Adomby adom
Texas Instruments Current Sense Amplifiers, VSSOP-10-0.5mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownINA238AQDGSRQ1
Texas Instruments · Current Sense Amplifiers · VSSOP-10-0.5mm
INA238AQDGSRQ1 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 set the device address. |
| 2 | A0 | input | I2C address pin; connect to GND, SCL, SDA, or VS to set the device address. |
| 3 | ALERT | output | Open-drain alert output whose default state is active low, so it requires an external pull-up resistor. |
| 4 | SDA | bidirectional | Open-drain bidirectional I2C data line. |
| 5 | SCL | input | I2C clock input. |
| 6 | VS | power_in | Power supply input, specified for 2.7 V to 5.5 V operating supply range. |
| 7 | GND | power_in | Ground reference for the device. |
| 8 | VBUS | power_in | Bus voltage input, rated for -0.3 V to 85 V (absolute maximum range). |
| 9 | IN- | input | Negative sense input; for high-side use connect to the load side of the sense resistor, for low-side use connect to the ground side of the sense resistor. |
| 10 | IN+ | input | Positive sense input; for high-side use connect to the power supply side of the sense resistor, 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 | Amplifiers/Comparators |
| 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-) | 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 | ||
| ALERT pin voltage | VALERT | -0.3 | V | ALERT | 3 | ||
| SDA, SCL pin 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 | -0.3 V < VCM < 85 V, TA = -40 °C to +125 °C | 5 | |
| Shunt voltage input range, ADCRANGE = 0 | VDIFF | -163.84 | 163.84 | mV | TA = -40 °C to +125 °C, ADCRANGE = 0 | 5 | |
| Shunt voltage input range, ADCRANGE = 1 | 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 = 48 V | 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 = 2.7 V to 5.5 V, TA = -40 °C to +125 °C | 5 |
| VBUS offset voltage | Vos_bus | -5 | 1 | 5 | mV | VBUS = 20 mV | 5 |
| VBUS offset voltage drift | dVos/dT | -40 | 4 | 40 | µV/°C | TA = -40 °C to +125 °C | 5 |
| VBUS offset voltage vs. power supply | PSRR | -1.1 | 1.1 | mV/V | VS = 2.7 V to 5.5 V | 5 | |
| Input bias current | IB | 0.1 | 2.5 | nA | Either input, IN+ or IN-, VCM = 85 V | 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 = 85 V | 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 measurement 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 | |
| Temperature sensor 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 = 0 V | 6 | |
| Quiescent current over temperature | IQ | 1.1 | mA | VSENSE = 0 V, TA = -40 °C to +125 °C | 6 | ||
| Quiescent current, shutdown | IQSD | 2.8 | 5 | µA | Shuntdown mode | 6 | |
| Device start-up time, power-up | TPOR | 300 | µs | Power-up (NPOR) | 6 | ||
| Device start-up time, from shutdown | 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 = 3 mA | 6 | ||
| Digital leakage input current | IIO_LEAK | -1 | 1 | µA | 0 ≤ VIN ≤ VS | 6 | |
| Junction-to-ambient thermal resistance | RθJA | 177.6 | °C/W | 4 | |||
| Junction-to-case (top) thermal resistance | RθJC(top) | 66.4 | °C/W | 4 | |||
| Junction-to-board thermal resistance | RθJB | 99.5 | °C/W | 4 | |||
| Junction-to-top characterization parameter | ΨJT | 9.7 | °C/W | 4 | |||
| Junction-to-board characterization parameter | YJB | 97.6 | °C/W | 4 |
CAD (KiCad official)
- Symbol:
INA238AQDGSRQ1 - Footprint:
Package_SO:MSOP-10_3x3mm_P0.5mm - 3D model: VSSOP-10-0.5mm (KiCad packages3D, STEP)
- 3D model files:
ina238aqdgsrq1-etched.step/ina238aqdgsrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ina238aqdgsrq1.step/ina238aqdgsrq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (47 pp, sha256
65b7d15df8354296, retrieved 2026-10-17, 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, primaryclaude-haiku-5-5(text), consensusclaude-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).