Timeline for Transistor biasing in integrated versus discrete circuits
Current License: CC BY-SA 4.0
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| Feb 4 at 22:49 | vote | accept | EE18 | ||
| Feb 1 at 12:53 | history | edited | Designalog | CC BY-SA 4.0 |
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| Jan 31 at 9:47 | history | edited | Designalog | CC BY-SA 4.0 |
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| Jan 31 at 8:44 | history | edited | Designalog | CC BY-SA 4.0 |
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| Jan 31 at 6:05 | comment | added | Designalog | @EE18 yes, I'd say so. In IC design lots of indirect feedback and feedforward arrangements work really well due to matching. However, it's not like it's impossible to do this in discrete designs because matched transistor arrays are available commercially, but I guess it's just easier to do so in IC design. | |
| Jan 31 at 6:01 | history | edited | Designalog | CC BY-SA 4.0 |
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| Jan 30 at 23:16 | comment | added | EE18 | This answer was fantastically helpful, thank you so much. Yes, in many ways I think you've precisely captured what I'm wondering about: why the preponderance of current mirrors in biasing. It seems the answer is captured in your line that "If Q2 and I1 were replaced by a resistive divider, then we will not have this tracking behavior and we'd probably have more errors in the set current", right? | |
| Jan 30 at 23:07 | history | answered | Designalog | CC BY-SA 4.0 |