Allocation of a plug for the similar socket of the A/d of transducer

Specifications of the similar input 
Max. admissible input voltage 4 V 
Area of normal input voltages: O to 2.495 V 
Scope of the digital transformation O to 255 (8-bit value) 
(voltages > 2.495 V 
become into the value 255) 
Principal defect 3% + 2 digits (digits) 
Elngangsimpedanz 100 kOhm + 2%