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LM4140: 基准电压改变

Part Number: LM4140

 使用LM4140-1.024时候(图上改为了1.024),按照图上GS8551放大,发现LM4140出来的基准电压会编程1.9V左右,我加大电阻R49,R50等改成10K跟随,还是会变。然后把电阻的阻值改成39K,则出来的基准电压为1.025V,然而不接电阻的时候出来的电压时1.024V还是会偏置0.001V,NSI1300D05出来的电压OUTP,OUTN为1.446V左右