Forum Post: RE: [A/D converter] How to detect A/D abnormal, disconnect abnormal and short abnormal

Hi Paul, Thank you for your answer, My spec as below is present for speed of car, Input Output Input_factor       Value           Input_factor       Value           AD Vad     "AD_ACCEL" Physical value         Goal rate N_Vl             0.2±0.05[V] - V_l             0 [km/h] N_Vu             4.8±0.05[V] - V_u             160 [km/h] the requirement, catch the abnormals : A/D abnormal Sensor disconnect abnormal Sensor short abnormal So, any input voltage out of range [0.2±0.05 ~ 4.8±0.05] is abnormal, and would be a failure ? Thank you very much, but could you show me the way to solve it, explain clearly, because i am newer in automotive Sy Nguyen