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  • INA228: P_TME of the INA228

    Resolved
    Part Number: INA228 The voltage and current sense gain errors are quite low (±0.01% typical, ±0.05% max), but the power total measurement error is quite high (±0.5% max). Where is all this error coming from? For my application, I…
    • Resolved

  • INA228: Bus and shunt voltage Linearity error

    TI Thinks Resolved
    Part Number: INA228 Hi team, Could you help to provide the Bus and shunt voltage Linearity error of this device? I can't find them in datasheet. Customer's requirement is <0.5%. B&R Lijia
    • Answered

  • INA228-Q1: 10-Bit Target Addressing

    Resolved
    Part Number: INA228-Q1 Other Parts Discussed in Thread: TCA9543A , TCA9548A , Hello there, I'm currently looking at addressing 150 INA228-1Q devices. Therefore I'm hoping to use 10 Bit target addressing, is the possible with this chip? Thanks in…
    • Resolved
    • Answered

  • INA228: Current measure error

    Resolved
    Part Number: INA228 Hello, I'm trying to measure current and bus voltage with INA228 monitor. Since current in the load could reach up to 100 A (peak), 300 uOhm resistor (CSS2H-5930R-L300F) is used as a shunt resistor. With ADCRANGE=1 such resistor value…
    • Resolved

  • INA228: How to connect INA228 when testing negative voltage

    TI Thinks Resolved
    Part Number: INA228 Other Parts Discussed in Thread: INA226 Hi Team, As I known. INA228 can used to measure both positive and negative voltage. Can it measure -10V just connect GND to -15V? Anything elso suggestion in hardware. Do we have reference design…

  • INA228: I2C timing requirement

    TI Thinks Resolved
    Part Number: INA228 Hi expert, My customer is using INA228 under 100kbps. And they just find that we define the max of I2C tr and tf as 300ns max, is it also suitable for 100kbps? if the speed is 100k, 1000ns can also be accept according to I2C standard…

  • INA228: when trying to communicate with I2C not getting acknowledge back

    Part Number: INA228 trying to communicate to the INA228 from an Altera XC7A100T using I2C but not getting the acknowledge back from the part. It just tri-states. What should we try?

  • INA228: Shunt resistor value&Filter value

    TI Thinks Resolved
    Part Number: INA228 Hi sir, I will use INA228 for small current measurement(35uA~60uA). I will use shunt resistor 1 ohm(0.01%). Is it OK. ? How about the filter value R&C or NC ?
    • Answered

  • INA228: Current conversion result

    Resolved
    Part Number: INA228 Hi Team， I would like to double check that if the value of the CURRENT register is the ADC conversion result of the voltage across the sampling resistor? Thanks. Regards， Hailiang
    • Resolved

  • RE: INA228: Shunt voltage non-linearity and low accuracy problem

    Hi Levi, I checked the connections of the shunt resistors. First, the copper tracks of different shunt resistors of INA228 chips vary, and some of them are too long. This long copper track might be the problem. Moreover, we did use Kelvin connections like…

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