134
Isolated Input (Version 3)
Applies to
1
Isolated current-sense input with wide voltage input range up to 30V, compatible with totem-
pole (push-pull) HTL drivers, 5V TTL/RS-422 differential line drivers, 5V CMOS drivers, potential
free contacts, solid-state relays and opto-couplers
Simplified schematic
Input Current vs. Input Voltage Characteristics
DC characteristics
Parameter
Conditions
Min.
Typ.
Max.
Units
Differential voltage
-30
+30
V
Input current threshold
5
mA
Differential voltage
@5 mA
3.0
V
Input current
@(VIN+ - VIN-) < 1 V
0.1
mA
@(VIN+ - VIN-) = 3 V
5.0
mA
@(VIN+ - VIN-) = 5 V
5.4
mA
@(VIN+ - VIN-) = 12 V
6.2
mA
@(VIN+ - VIN-) = 30 V
7.6
mA
AC characteristics
Parameter
Conditions
Min.
Typ.
Max.
Units
Positive pulse width
1.25
µs
Negative pulse width
1.25
µs
Pulse rate
0
400
kHz
1
3618 HD26F I/O Extension Module - Fast I/O
.
eGrabber
Hardware Manual
