App-4
IM 701925-01EN
Appendix 2. Input Circuit and Accuracy
Input Equivalent Circuit
1 M
Ω
(+)
(–)
1 M
Ω
Approx. 1.1 pF
Negative signal
input terminal
Positive signal
input terminal
Approx. 1.1 pF
Concept of DC Voltage Accuracy
Ground = 0 V
Residual offset
(Within ±1.7 % of
the common-mode voltage)
–35 dB or less
Common-mode voltage
tolerance:
Within ±2 % of the differential
voltage
Differential voltage tolerance:
Tolerance
Negative input
Vin–
Positive input
Vin+
Maximum operating input voltage
Input voltage
+
+