L-Card L-502-P-G-D-I User Manual page 61

61
6.1.1.9. Closed entry with divider. Mode
"with common ground"
С
R1
In multi-channel mode, the connection is correct only for R2 << R1 and R2 ≤ 50 Ω.
The transmission coefficient of the voltage in the passband is R2/(R1+R2).
С
6.1.1.11. Inductive pickup.
Mode "with common ground"
L
Resistor R performs the function of a damper to suppress the oscillation process in the L-C circuit,
where C is the equivalent total capacitance applied in parallel to L. The ADC entry capacitance is
estimated to be 25 pF. Resistor R should be located close to L-502 input.
The connection is recommended for single-channel mode.
R should be located close to the L-502 entry.
X1 (X2-X16, Y1-Y16)
R2
GND32
AGND
R2 should be located close to the L-502 entry point.
X1 (X2-X16, Y1-Y16)
L-502
GND32
AGND
Can not be connected like this!
X1 (X2-X16, Y1-Y16)
L-502
R
GND32
AGND
6.1.1.10. Closed entry with divider.
"Differential" mode
С
L-502
6.1.1.12. Inductive pickup.
"Differential" mode
R1
X1 (X2-X16, Y1-Y16)
R2
Y1 (Y2 -Y16)
AGND
С
X1 (X2 -X16)
Y1 (Y2 -Y16)
AGND
X1 (X2 -X16)
L
R
Y1 (Y2 -Y16)
AGND
L-502
L-502
L-502