53
LPS710E Long Travel Piezo Stage and Controller
As this output is actively driven, it can be connected, for example, to an oscilloscope
without a need for an external pull-up resistor. It can also be used to drive most
optocouplers.
A.2.5 Trigger Input
The Trigger inputs are ekectrically identical to the digital inputs (i.e. a standard CMOS
logic gate type with TTL compatible input levels and a built-in pull-up resistor,
10 kOhm to +5V). They can be connected directly to mechanical switches, open-
collector type outputs or most type of logic outputs.
Fig. A.7 Trigger Input Schematic (protection circuitry not shown)
When connected to a switch, the inputs will read as logic LOW if the switch is open
circuit and HIGH if the switch is closed. When connected to a logic output, or any other
voltage source, the input is guaranteed to read LOW if the voltage is above 2.4V and
HIGH when the output is below 0.8 V.
A.2.6 +5 Volt Supply
A +5 V, 250 mA supply is provided for interfacing to external circuits that require a
power source.
Caution
The voltage applied to the trigger inputs must be within the range
0 V to +7V DC, or damage to the inputs may occur.
Caution
Do not exceed the 250 mA maximum output current. For applications
requiring higher currents an external power supply must be used.
10K
gnd
5V
IN
