1.2.2.1.3 Analog input specification
Attention
The single-ended analog input has an extended range of 104.7% (e.g. 0xFFF correspond to +5.235V).
The differential analog input has an extended range of 121.8% (e.g. 0xFFF correspond to Vdiff = +6.09V).
1.2.2.1.3.1 Differential
Symbol Min. typical Max. Description
Impact
V
-5V
+5V
The input voltage between
the positive and negative
input pins.
Any voltage out of this range causes
saturation to the min/max ADC value.
V
-1V
+2.5V
+5V
The common mode voltage.
Any voltage out of this range causes
saturation and inaccuracy in the
measurements.
V
-15V
+15V The tolerable voltage between
the positive input pin and
GND.
Any voltage out of this range damages
the analog input’s circuitry.
V
-15V
+15V The tolerable voltage between
the negative input pin and
GND.
Any voltage out of this range damages
the analog input’s circuitry.
R
13.6kΩ
Internal input resistance
Error
-1%
+1%
The input voltage between
the positive and negative
input pins.
diff
cm
in,P
in,N
i
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