|
发表于 2009-3-17 08:27:22
|
显示全部楼层
1. If your VDD=1V~2.5V and typically VDD=1.5V, what is your BG output voltage?
2. I assume your BG output voltage =0.6V, then your architecture is completely wrong becuase your output=VBE+IPTAT*R > 0.6V
3. For PSRR, if your design has to meet VDD=1V~2.5V, then change architecture first. If your design at VDD=1.5V, there definitely can use cascoded in P-side to boost PSRR >> 60dB at 100Hz without any problems.
Hopefully it is helpful for you |
|