
ES31x.1 User’s Guide
45
ETAS
Technical Data
8.7.4
Sensor Inputs
Properties
Characteristics
Input Channel
ES313.1: 4
ES314.1: 8
A/D converter
16 bit SAR converter
Hardware input filter
Butterworth 8th order, 250 Hz cutoff
frequency, switchable
Sampling rate application tool
1 Hz to 2 kHz per channel, configurable
Input voltage ranges
0.1 V to 60 V
Maximum input voltage
Input to input:
max. 60 VDC / 30 VAC (dry environ-
ment)
max. 35 VDC / 16 VAC (wet environ-
ment)
Input to ground supply voltage or to
housing:
max. 60 VDC / 30 VAC (dry environ-
ment)
max. 35 VDC / 16 VAC (wet environ-
ment)
Maximum input voltage resolution (16
bit)
Unipolar: 1.5
V
Bipolar: 3.0
V
Maximum measuring error
Unipolar: 25 °C (77 °F) ambient tem-
perature ±0.13 %
Bipolar: 25 °C (77 °F) ambient tem-
perature ±0.05 %
Max. voltage drift (temperature),
Temperatures -40 °C to +85 °C
-40 °C to +85 °C (-40 °F to +185 °F),
±40 ppm/K
Max. voltage drift (temperature),
Temper85 °C to +120 °C
+85 °C to +105 °C (+185 °F to +221
°F), ±80 ppm/K
+105 °C to +125 °C (+221 °F to +257
°F), ±120 ppm/K
Input impedance
10 M