为什么带隙基准运放的正反馈系数要等于1/2的负反馈系数，有好的瞬态响应

小编够认真。
edaboard 上没看完。
Hi
when u focus on the ct u will find that there is 2 loops one for +ve FB and the other for -ve, So as there is +ve FB we have 2 make sure that this +ve FB will not make the ct oscillate so we need the -ve FB 2 more more that +ve FB by any factor
and i think that Razavi say by factor 2 for safety
仅供参考！

为什么不让运放震荡，就需要负反馈是正反馈的2倍呢?

不是正好1/2，看情况，稳定即可！1/3,1/4也能稳定

好问题

受教了。

请大牛们赐教。

觉得1/2应该是上限，正负一倍相互抵消，留下一倍负反馈使Vx=Vy
不知道这样理解对不对?

小编现在明白了吗?能讲的详细些吗?谢谢了

3db。