inside the chip, we use transistors to represent the resistors. I want to know the maximum value of resistance we can gain out of a transistor inside a cihp?
2007-04-03 06:19:57 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
It's limited by the parasitic leakage current when the transistor is off. A single power transistor as big as the entire chip can leak as little as 1 to 10nA.
So, if you have a little bitty transistor the current is that much less, and the resistance can easily be in the giga ohm range.
The thick oxides used to insulate different parts in the circuit can be approximated for all practical purposes as infinite resistance.
2007-04-03 07:32:13 · answer #1 · answered by vrrJT3 6 · 1⤊ 0⤋
Not sure why you are trying to use a transistor as a resistor.
But the B and Q factors are available based on the transistor.
2007-04-03 06:27:11 · answer #2 · answered by uisignorant 6 · 0⤊ 0⤋
You can get to megOhms pretty easily.
2007-04-03 06:30:14 · answer #3 · answered by Gene 7 · 0⤊ 0⤋