twlin1
Member level 1
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I just read the paper "Process and Temperature Compensation in a 7-MHz CMOS Clock Oscillator" by Krishnakumar Sundaresan. There is a cicuit as attached which is temperature independent current source. But it looks like a PTAT current source in some kind of bandgap structure.Can somebody explain "temperature independent current source" to me? Thanks.
![](https://obrazki.elektroda.pl/20_1309331575_thumb.jpg)
![](https://obrazki.elektroda.pl/20_1309331575_thumb.jpg)