Good afternoon. I want to ask two questions about datasheet.
1. what is it "Ioff"? Where to measure the ammeter. 2.And what is the name of the parameter in the datasheet, where is the ammeter A1 and A2?
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Good afternoon. I want to ask two questions about datasheet.
1. what is it "Ioff"? Where to measure the ammeter. 2.And what is the name of the parameter in the datasheet, where is the ammeter A1 and A2?
Hi Igor,
You can read our FAQ on Ioff: [FAQ] What does 'partial power down' or 'Ioff' mean in the datasheet?
A1 and A1 will be the Icca and Iccb measurements in the data sheet.
Thank you very much for your response. A little became clear. As far as I understand, this mode is needed to save the component when the supply voltage is turned off. To avoid parasitic forces that can create uncontrollable conditions. This means that the parameter characterizes the current in the I / O circuits, as shown in the figure. This is probably why he has bipolar nutrition - positive and negative. The value should not exceed 1 μA. The transition of outputs and inputs to a high impedance state when power is removed from Block A or Block B provides isolation from external signals. I'm right? If I want to measure, then I will include a microammeter in the circuit as in the figure, turn off the external power to A and B.
Hi Igor,
You can try these testing conditions and measure the Ioff yourself. You will set one of Vcca or Vccb to 0 and measure the current.