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LMP91000: 求助TI工程师

Part Number: LMP91000


   您好 请问internal zero 选择50%的意思是 VDD的一半进入TIA的同相端 另一半进入A1的同相端吗 还有我没有明白图二中variable bias 给we和re提供偏置电压是什么意思 如果bias设置为0就代表we和re没有偏置电压吗 他们的电压就相等吗