A.±0.25mmB.±0.5mmC.0.25mmD.0.5mm
A.±11μVB.±53μVC.±70μVD.±144μV
A.0.0005V,0.05%B.-0.0005V,-0.05%C.0.0050V,0.50%D.-0.0050V,-0.50%