AddFEM
Technical Data
4-9
AddFEM
C79000–G8076–C900–03
Analog Inputs
Input impedance in signal range
At current measurement
At voltage measurement
41.8 Ω
100 kΩ
Measuring error
Greatest error at 25°C
Temperature coefficient
$0.12% at 0 V common–mode voltage
$25 ppm/K
Greatest error across the complete tem-
perature range
$0.2% related to an upper limit of effec-
tive range at 2 V maximum common–
mode voltage
Digital resolution of the digital–analog con-
verter
13 bits + preceding sign
Value of the least significant bit (LSB)
At current measurement
At voltage measurement
4 µA
2mV
Highest permitted continuous overload
(without damage)
60 V
Output of the digital value under overload
conditions
118%
Input type Differential
Common–mode voltage range $6V
Common–mode voltage suppression
Direct voltage
50 Hz
60 Hz
–0.05%/V
55 dB
55 dB
Total system input transfer time interval
(TAID + TAIT)
52 µs
Sampling time including transient recovery
time
20 µs
Sampling repeat time 104.167 µs
First order input filter
Transition frequency
880 Hz
Mean–value generation across
4 measurements each
Transition frequency including
input filter
700 Hz
Greatest short–time deviation during each
specified electrical disturbance test
Refer to EMC data (Section 4.2)
Conversion method Successive approximation / parallel con-
version of 4 channels each
Operating mode Self–sampling
Calibration Not required
Configuration of the terminals Refer to Appendix A, connector X5, Page
A-1!
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