input offset current

基本解释

With an electrometer, the input offset current is very low.
静电计的输入偏置电流是很低的。
R2 and R4 are chosen to minimize errors due to input offset current as outlined in the section describing the photocell amplifier.
R2和R4用来降低因输入失调电流产生的误差，其原理与前文光电二极管放大器所述一致。
Input offset current is the difference between the two input bias currents and this leads to offset errors in in-amps when source resistances in the two input terminals are unequal.
输入失调电流是两个差动输入端的基极输入电流，当两个输入端的源阻抗不相等时，它可引起仪表放大器的失调误差。