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Frequent questions

  • [FAQ] INA241 vs INA296: Selecting Devices with or without PWM Rejection

    Part Number: INA241A I am looking for a high voltage, precise current sense amplifier and both the INA241 and the INA296 families meet my design requirements. I see that the INA241 has a PWM reject feature like the INA750 and INA790. How do I decide…

  • [FAQ] INA240: What are the INA240 Schematic and Design recommendations?

    Part Number: INA240 What Size Resistors should be used with the INA240? Can a voltage divider be used to drive the reference input of the INA240? Why does the output of the INA240 seem distorted compared to the measured current?

  • [FAQ] INA181: How do I properly design an input filter for my INA18x-Q1 device?

    Part Number: INA181 Other Parts Discussed in Thread: INA180 , INA240 How do I properly design an input filter for my INA18x-Q1 device?

  • [FAQ] How to use the ALERT pin of a digital power monitor

    Part Number: INA236 Other Parts Discussed in Thread: INA3221 , INA209 , , INA228 , INA237 I want to use the ALERT pin of a digital power monitor, what should I pay attention to?

  • [FAQ] INA228: Current not reading as expected

    Part Number: INA228 Other Parts Discussed in Thread: SYSCONFIG I’m reading the current register value, but the result is wrong. Why am I not reading the value that I expect to be reading?

  • [FAQ] INA238: Troubleshooting I2C Communication Failures (NACK) in TI Current Sense Power Monitors

    Part Number: INA238 Other Parts Discussed in Thread: PCA9306 , TCA9517 I’m getting a “no acknowledge” (NACK) when I try to communicate with the power monitor.

  • [FAQ] INA229: Registers are reading incorrectly

    Part Number: INA229 Other Parts Discussed in Thread: INA239 Why is it when I try reading a register, it appears that I'm actually reading a completely different register? For example, I read 0x3F but I get the results from register 0x3E instead.

  • [FAQ] INA186-Q1: INA186 - Abs Max ratings

    Part Number: INA186-Q1 Other Parts Discussed in Thread: INA186 Can the INA186 handle a VCM beyond Abs Max for a short amount of time?

  • [FAQ] INA186-Q1: Can the INA186 be used with a PWM input?

    Part Number: INA186-Q1 Other Parts Discussed in Thread: INA186 , INA240 Can the INA186 be used to measure current of a PWM signal?

  • [FAQ] INA630: advantages of differential feedback

    Part Number: INA630 Other Parts Discussed in Thread: INA821 , Tool/software: Dear team, I would like to ask you if there is any app note or document highlighting the advantages of differential feedback? or you could provide me with the information…

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