Analog Outputs
F-FEM-DAC
F-FEM-DACF-FEM-DAC
F-FEM-DAC
Operating Manual
23
4 Operation
4.1 Analog Outputs
4.1.1 General
Each analog channel is an electrically isolated unit provided with a
serial 16-bit DAC, a precision voltage reference and a voltage and
current output stage. To achieve the desired accuracies, each output is
checked during production testing and the deviations found are stored
in the EEPROM of the F-FEM-CON. The F-FEM-DAC software takes
these deviations into account and corrects them (calibration). To
achieve optimum accuracy, do not use the voltage output and the
current output of a channel simultaneously.
4.1.2 Block Diagram
The pin assignment above applies to X5, X6, X7 and X8.
Fig. 13 Circuit of a DAC channel
from internal logic
5 V
+15 V
-15 V
Data
CLK
LDAC
DAC
+15 V
Ref.
-15 V
+15 V
-15 V
X5/3
+15 V
-15 V
X5/2
X5/4
X5/1
U/I
Converter
Analog Outputs
V
mA