
INA228AIDGS
Texas Instruments
-300mV~85V -40℃~+125℃ 0.01uV/℃ 10mA 154dB 1uV 2.5nA 2.7V~5.5V 640uA High-side detection、Low-side detection、Bidirectional detection、Input filter、Power monitoring、Programmable threshold alarm、Integrated ADC、Enable/shutdown function ±163.84mV VSSOP-10-0.5mm Current Sense Amplifiers ROHS
- Category
- Current Sense Amplifiers
- Package
- VSSOP-10-0.5mm
- Pins
- 10
Overview
The INA228AIDGS is a current Sense Amplifier made by Texas Instruments in a VSSOP-10-0.5mm package with 10 pins. -300mV~85V -40℃~+125℃ 0.01uV/℃ 10mA 154dB 1uV 2.5nA 2.7V~5.5V 640uA High-side detection、Low-side detection、Bidirectional detection、Input filter、Power monitoring、Programmable threshold alarm、Integrated ADC、Enable/shutdown function ±163.84mV VSSOP-10-0.5mm Current Sense Amplifiers ROHS.
PCBKit's library has its KiCad symbol (Sensor_Energy:INA228, from KiCad's library) and its footprint (Package_SO:TSSOP-10_3x3mm_P0.5mm, from KiCad's library), ready for a KiCad board. 3,123 are in stock at JLCPCB (part C2887910).
Symbol
Footprint
From the datasheet
13- Supply, least
- 2.7 V · VS, recommended operating min · p. 4
- Supply, most
- 5.5 V · VS, recommended operating max · p. 4
- Supply, absolute maximum
- 6 V · VS, absolute maximum · p. 3
- Works from
- -40 °C · Ambient temperature min · p. 4
- Works up to
- 125 °C · Ambient temperature max · p. 4
- Junction, hottest
- 150 °C · Junction temperature absolute max · p. 3
- Takes working
- 640 µA · VS quiescent current typical, VSENSE = 0 V · p. 6
- Takes at most
- 1.1 mA · VS quiescent current max, VSENSE = 0 V, TA = –40°C to +125°C · p. 6
- Takes asleep
- 2.8 µA · Shutdown quiescent current typical · p. 6
- A pin gives at most
- 10 mA · Digital output current absolute max · p. 3
- Junction to air (DGS (VSSOP))
- 177.6 K/W · Junction-to-ambient thermal resistance · p. 4
- Junction to case (DGS (VSSOP))
- 66.4 K/W · Junction-to-case (top) thermal resistance · p. 4
- Junction to board (DGS (VSSOP))
- 99.5 K/W · Junction-to-board thermal resistance · p. 4
What it is and has
13- ADC
- 20-bit delta-sigma · p. 1
- Offset voltage
- ±1 µV maximum · p. 1
- Offset drift
- ±0.01 µV/°C maximum · p. 1
- Gain error
- ±0.05% maximum · p. 1
- Gain error drift
- ±20 ppm/°C maximum · p. 1
- Common mode rejection
- 154 dB minimum · p. 1
- Fast alert response
- 75 μs · p. 1
- Common-mode range
- –0.3 V to +85 V · p. 1
- Bus voltage sense input
- 0 V to 85 V · p. 1
- Temperature sensor
- ±1°C maximum at 25°C · p. 1
- Resistor temperature compensation
- Programmable · p. 1
- Conversion time and averaging
- Programmable · p. 1
- Package
- VSSOP (10), 3.00 mm × 3.00 mm · p. 1
Around it
2- cap 0.1 µF to 1 µF
- between IN+ and IN–; Ceramic differential input filter capacitor. · p. 34
- res 100 Ω or less
- between Shunt positive terminal and IN+; Input filter series resistor; use the lowest possible resistance. · p. 34
Specifications
73| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| Supply voltage VS | max 6 V | 3 | |
| Differential (VIN+) – (VIN–) VIN+, VIN– | min -40 · max 40 V | 3 | |
| Common-mode VIN+, VIN– | min -0.3 · max 85 V | 3 | |
| VVBUS VVBUS | min -0.3 · max 85 V | 3 | |
| ALERT VALERT | Maximum is VS + 0.3 V | min -0.3 V | 3 |
| SDA, SCL VIO | min -0.3 · max 6 V | 3 | |
| Input current into any pin IIN | max 5 mA | 3 | |
| Digital output current IOUT | max 10 mA | 3 | |
| Junction temperature TJ | max 150 °C | 3 | |
| Storage temperature Tstg | min -65 · max 150 °C | 3 | |
| Electrostatic discharge V(ESD) | Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins; ±2000 V | max 2000 V | 4 |
| Electrostatic discharge V(ESD) | Charged device model (CDM), per JEDEC specification JESD22-C101, all pins; ±1000 V | max 1000 V | 4 |
| Common-mode input range VCM | min -0.3 · max 85 V | 4 | |
| Operating supply range VS | min 2.7 · max 5.5 V | 4 | |
| Ambient temperature TA | min -40 · max 125 °C | 4 | |
| Junction-to-ambient thermal resistance RθJA | DGS (VSSOP), 10 PINS | typ 177.6 °C/W | 4 |
| Junction-to-case (top) thermal resistance RθJC(top) | DGS (VSSOP), 10 PINS | typ 66.4 °C/W | 4 |
| Junction-to-board thermal resistance RθJB | DGS (VSSOP), 10 PINS | typ 99.5 °C/W | 4 |
| Junction-to-top characterization parameter ΨJT | DGS (VSSOP), 10 PINS | typ 9.7 °C/W | 4 |
| Junction-to-board characterization parameter YJB | DGS (VSSOP), 10 PINS | typ 97.6 °C/W | 4 |
| Common-mode input range VCM | TA = –40°C to +125°C | min -0.3 · max 85 V | 5 |
| Bus voltage input range VVBUS | min 0 · max 85 V | 5 | |
| Common-mode rejection CMRR | –0.3 V < VCM < 85 V, TA = –40°C to +125°C | min 154 · typ 170 dB | 5 |
| Shunt voltage input range VDIFF | TA = –40°C to +125°C, ADCRANGE = 0 | min -163.84 · max 163.84 mV | 5 |
| Shunt voltage input range VDIFF | TA = –40°C to +125°C, ADCRANGE = 1 | min -40.96 · max 40.96 mV | 5 |
| Shunt offset voltage Vos | VCM = 48 V, TCT > 280 us; values are ± | typ 0.3 · max 1 uV | 5 |
| Shunt offset voltage Vos | VCM = 0 V, TCT > 280 us; values are ± | typ 0.3 · max 1 uV | 5 |
| Shunt offset voltage drift dVos/dT | TA = –40°C to +125°C; values are ± | typ 2 · max 10 nV/°C | 5 |
| Shunt offset voltage vs power supply PSRR | VS = 2.7 V to 5.5 V, TA = –40°C to +125°C; values are ± | typ 0.05 · max 0.5 uV/V | 5 |
| VBUS offset voltage Vos_bus | VBUS = 20 mV; values are ± | typ 1 · max 2.5 mV | 5 |
| VBUS offset voltage drift dVos/dT | TA = –40°C to +125°C; values are ± | typ 4 · max 20 uV/°C | 5 |
| VBUS offset voltage vs power supply PSRR | VS = 2.7 V to 5.5 V; typical is ± | typ 0.25 mV/V | 5 |
| Input bias current IB | Either input, IN+ or IN–, VCM = 85 V | typ 0.1 · max 2.5 nA | 5 |
| VBUS pin input impedance ZVBUS | Active mode | min 0.8 · typ 1 · max 1.2 MΩ | 5 |
| VBUS pin leakage current IVBUS | Shutdown mode, VBUS = 85 V | typ 10 nA | 5 |
| Input differential impedance RDIFF | Active mode, VIN+ – VIN– < 164 mV | typ 92 kΩ | 5 |
| Shunt voltage gain error GSERR | VCM = 24 V; values are ± | typ 0.01 · max 0.05 % | 5 |
| Shunt voltage gain error drift GS_DRFT | Maximum is ± | max 20 ppm/°C | 5 |
| VBUS voltage gain error GBERR | Values are ± | typ 0.01 · max 0.05 % | 5 |
| VBUS voltage gain error drift GB_DRFT | Maximum is ± | max 20 ppm/°C | 5 |
| Power total measurement error (TME) PTME | TA = –40°C to +125°C, at full scale; maximum is ± | max 0.5 % | 5 |
| Energy and charge TME ETME | at full scale power; maximum is ± | max 1 % | 5 |
| ADC resolution | typ 20 Bits | 5 | |
| 1 LSB step size | Shunt voltage, ADCRANGE = 0 | typ 312.5 nV | 5 |
| 1 LSB step size | Shunt voltage, ADCRANGE = 1 | typ 78.125 nV | 5 |
| 1 LSB step size | Bus voltage | typ 195.3125 uV | 5 |
| 1 LSB step size | Temperature | typ 7.8125 m°C | 5 |
| ADC conversion-time(1) TCT | Conversion time field = 0h | typ 50 us | 5 |
| ADC conversion-time(1) TCT | Conversion time field = 1h | typ 84 us | 5 |
| ADC conversion-time(1) TCT | Conversion time field = 2h | typ 150 us | 5 |
| ADC conversion-time(1) TCT | Conversion time field = 3h | typ 280 us | 5 |
| ADC conversion-time(1) TCT | Conversion time field = 4h | typ 540 us | 5 |
| ADC conversion-time(1) TCT | Conversion time field = 5h | typ 1052 us | 5 |
| ADC conversion-time(1) TCT | Conversion time field = 6h | typ 2074 us | 5 |
| ADC conversion-time(1) TCT | Conversion time field = 7h | typ 4120 us | 5 |
| Integral Non-Linearity INL | Typical is ± | typ 2 m% | 5 |
| Differential Non-Linearity DNL | typ 0.2 LSB | 5 | |
| Internal oscillator frequency FOSC | typ 1 MHz | 5 | |
| Internal oscillator frequency tolerance FOSC_TOL | TA = 25°C; maximum is ± | max 0.5 % | 5 |
| Internal oscillator frequency tolerance FOSC_TOL | TA = –40°C to +125°C; maximum is ± | max 1 % | 5 |
| Measurement range | Temperature sensor | min -40 · max 125 °C | 6 |
| Temperature accuracy | TA = 25°C; values are ± | typ 0.15 · max 1 °C | 6 |
| Temperature accuracy | TA = –40°C to +125°C; values are ± | typ 0.2 · max 2 °C | 6 |
| Supply voltage VS | min 2.7 · max 5.5 V | 6 | |
| Quiescent current IQ | VSENSE = 0 V | typ 640 · max 750 uA | 6 |
| Quiescent current IQ | VSENSE = 0 V, TA = –40°C to +125°C | max 1.1 mA | 6 |
| Quiescent current, shutdown IQSD | Shutdown mode | typ 2.8 · max 5 uA | 6 |
| Device start-up time TPOR | Power-up (NPOR) | typ 300 us | 6 |
| Device start-up time TPOR | From shutdown mode | typ 60 us | 6 |
| Logic input level, high VIH | SDA, SCL | min 1.2 · max 5.5 V | 6 |
| Logic input level, low VIL | Minimum is GND | max 0.4 V | 6 |
| Logic output level, low VOL | IOL = 3 mA; minimum is GND | max 0.4 V | 6 |
| Digital leakage input current IIO_LEAK | 0 ≤ VIN ≤ VS | min -1 · max 1 uA | 6 |
Pins, by the datasheet
10- 1 A1
- I2C address pin. Connect to GND, SCL, SDA, or VS. · p. 3
- 2 A0
- I2C address pin. Connect to GND, SCL, SDA, or VS. · p. 3
- 3 ALERT
- Open-drain alert output, default state is active low. · p. 3
- 4 SDA
- Open-drain bidirectional I2C data. · p. 3
- 5 SCL
- I2C clock input. · p. 3
- 6 VS
- Power supply, 2.7 V to 5.5 V. · p. 3
- 7 GND
- Ground. · p. 3
- 8 VBUS
- Bus voltage input. · p. 3
- 9 IN–
- Negative input; connect to load side of sense resistor for high-side applications or ground side for low-side applications. · p. 3
- 10 IN+
- Positive input; connect to power supply side of sense resistor for high-side applications or load side for low-side applications. · p. 3
Ordering codes, by the datasheet
2- INA228AIDGSR
- VSSOP (DGS) · 10 pins; 2500-piece large tape and reel; operating temperature -40 to 125 °C. · p. 41
- INA228AIDGSR.A
- VSSOP (DGS) · 10 pins; 2500-piece large tape and reel; operating temperature -40 to 125 °C. · p. 41
Parameters
19- Common Mode Rejection Ratio (CMRR)
- 154dB
- Current - Supply(Max)
- 1.1mA
- Differential Voltage
- ±163.84mV
- Features
- Bidirectional detection
- Ib - Input Bias Current
- 2.5nA
- Input Offset Voltage Drift(Vos TC)
- 0.01uV/℃
- Junction Temperature(Max)
- 150℃
- Operating Temperature
- -40℃~+125℃
- Output Current
- 10mA
- Output Current per Pin(Max)
- 10mA
- Quiescent Current
- 640uA
- Single Supply
- 2.7V~5.5V
- Standby Current
- 2.8uA
- Thermal Resistance(Junction to Ambient)
- 177.6℃/W
- Thermal Resistance(Junction to Board)
- 99.5℃/W
- Thermal Resistance(Junction to Case)
- 66.4℃/W
- Vcm - Common Mode Voltage
- -300mV~85V
- Voltage - Supply(Absolute Max)
- 6V
- Vos - Input Offset Voltage
- 1uV
Order codes
2- INA228AIDGSTLCSC C2862904
- INA228AIDGSRLCSC C2887910
Pinout
10| Pin | Name | Type |
|---|---|---|
| 1 | A1 | Input |
| 2 | A0 | Input |
| 3 | Alert | Open collector |
| 4 | SDA | Input/output |
| 5 | SCL | Input |
| 6 | VS | Power in |
| 7 | GND | Power in |
| 8 | Vbus | Input |
| 9 | Vin- | Input |
| 10 | Vin+ | Input |
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Is there a KiCad symbol and footprint for the INA228AIDGS?
Yes. The symbol is Sensor_Energy:INA228 and the footprint Package_SO:TSSOP-10_3x3mm_P0.5mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the INA228AIDGS?
VSSOP-10-0.5mm, with 10 pins. Its footprint is drawn on this page.
Where is the INA228AIDGS datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the INA228AIDGS?
JLCPCB lists it as part C2887910, with 3,123 in stock; the sellers' links on this page open their listings.
What can replace the INA228AIDGS?
Parts like it in the library: the INA238AIDGSR by Texas Instruments, the INA226AIDGSR by Texas Instruments, the INA237AIDGSR by Texas Instruments and the INA233AIDGS by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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