Input Signal Electrical Specifications - Teledyne FLIR A68 Series User Manual

Input Signal Electrical Specifications

External Input Block Diagram
Input 1 (pin 5)
Common Ground (pin 3)
External Input Details
• Opto-coupled with internal current limit.
• Single input trigger threshold level: <0.8V=Logical LOW, >2.4V=Logical HIGH.
• Used as trigger acquisition event, counter or timestamp event, or integration
control.
• User programmable debounce time from 0 to 16000 µs in 1µs steps.
• Source signal requirements:
• Single-ended driver meeting 3V, 12V, or 24V standards (see table below)
• Differential signal driver
External Input DC Characteristics
Operating Specification
Input Voltage
Input Current
Input logic Low
Input logic High
Absolute Maximum Range before Possible Device Failure
Absolute Ratings
Input Voltage
External Input AC Timing Characteristics
Conditions
Input Pulse 0V – 3V
Input Pulse 0V – 5V
Input Pulse 0V -12V
Input Pulse 0V – 24V
146 • Technical Specifications
Current
Protection
Limiter
Minimum
+3 V
4.9 mA
2.4 V
Minimum
–36 Volts
Description
Input Pulse width High
Input Pulse width Low
Max Frequency
Input Pulse width High
Input Pulse width Low
Max Frequency
Input Pulse width High
Input Pulse width Low
Max Frequency
Input Pulse width High
Input Pulse width Low
Max Frequency
Maximum
+36 V
12 mA
0.8 V
Maximum
+36 Volts
Min
100
50
4.5
140
30
3.5
250
20
1.9
360
30
1.5
FLIR A68/A38 Series IR Camera User's Manual
Unit
ns
ns
MHz
ns
ns
MHz
ns
ns
MHz
ns
ns
MHz