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OM-USB-TC-AI User's Guide
Specifications
23
Microcontroller
Table 15. Microcontroller specifications
Parameter
Specification
Type
Two high-performance 8-bit RISC microcontrollers
USB +5V voltage
Table 16. USB +5V voltage specifications
Parameter
Specification
USB +5V (VBUS) input
voltage range
4.75 V min to 5.25 V max
Power
Table 17. Power specifications
Parameter
Conditions
Specification
Supply current
USB enumeration
<100 mA
Supply current
(Note 14)
Continuous mode with all inputs configured for
Disabled mode.
270 mA typ
User +5V output voltage range
(terminal block pin 21)
4.9 V min to 5.1 V max
User +5V output current
(terminal block pin 21)
Bus-powered and connected to a self-powered hub.
(Note 14)
5 mA max
Isolation
Measurement system to PC
500 VDC min
Note 14:
This is the total current requirement for the OM-USB-TC-AI which includes up to 10 mA for the
status LED.
USB specifications
Table 18. USB specifications
Parameter
Specification
USB device type
USB 2.0 (full-speed)
Device compatibility
USB 1.1, USB 2.0
Device power capability
Self-powered
USB cable type
A-B cable, UL type AWM 2725 or equivalent. (min 24 AWG VBUS/GND,
min 28 AWG D+/D–)
USB cable length
3 meters max
Environmental
Table 19. Environmental specifications
Parameter
Specification
Operating temperature range
0 °C to 55 °C max
Storage temperature range
–40 °C to 85 °C max
Humidity
0% to 90% non-condensing max
Содержание OM-USB-TC-AI
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