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INA333 datasheet some questions

Eric Chu
Prodigy 50 points

Other Parts Discussed in Thread: INA333

I am a novice engineer.

I have some questions in the INA333 datasheet.

1. why input voltage more than output voltage big

  • Input Voltage: (V–) +0.1 V to (V+) –0.1 V
  • Output Range: (V–) +0.05 V to (V+) –0.05 V

2. some of parameter I can't  understand

    how can I refer to other information.

  • 0
    TI__Expert 5516 points

    HI Eric 

    The input and the output range define the maximum voltage for linear operation of the instrumentation  amplifier

    For example

    Assume your supply voltage to to be Vcc of + 2V and -2V 

    • Input Voltage: (V–) +0.1 V to (V+) –0.1 V
    • input voltage range calculation  (-2)+0.1 = -1.9V and (+2)-0.1=1.9V
    • Therefore your input has to lie between -1.9V to +1.9V

    To further answer your question about why this limitations  exists , i would recommend you to go through a small tutorial video on input and output limitation chapter

    I am  sure it will answer your questions on the input and output voltage range

    Thank you