亚域管子的gm和bias current的是20倍关系？
时间：12-11
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看不懂了...论文上的原话,谁给解释下
This means the requred gm would be 15uS.As this value is quite low, it can
be assumed that the source follower transistor is in weak inversion, and
therefore gm is roughly equal to 20 times the bias current.As a result,
a minimum bias current of 0.75uA is needed per column.
This means the requred gm would be 15uS.As this value is quite low, it can
be assumed that the source follower transistor is in weak inversion, and
therefore gm is roughly equal to 20 times the bias current.As a result,
a minimum bias current of 0.75uA is needed per column.
弱反新就是亚阈
亚阈下gm=I/(n*Vthermol),vth=25mV,如果n取2,大概就是20倍得关系
bible上用的是25倍
不知道ken martin的书怎么样...
这本书也推荐蛮多的
这本国内只有翻译得,不要,pdf得质量又太烂,苦恼啊
这本书精装版的看起来很有手感...
国内没有么...我还想从国内买一本回来。。。
那我去馆际互借过来然后复印好了,浙大图书馆没有