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DESCRIPTION

The Desktop Instruments Full-speed USB Isolator provides electrical isolation between a full-speed USB device and its host computer.  This isolation protects the computer against ground loops and other supply differences between the computer and the USB device.  Isolation also protects the device from noise and interference generated by the computer.  The Isolator is connected between the USB device and the host computer using standard USB cables, allowing the Isolator to be located away from the host computer.  No configuration or software is required - just connect and go.  The Full-speed USB Isolator does not support low-speed devices, such as a computer keyboard or mouse.

FEATURES

  • Electrically isolates a USB device from its host
  • Protects against ground loops and supply shifts
  • Blocks computer noise and interference
  • Over 1500V of isolation
  • Provides isolated data and power to the devic
  • No external power supply required
  • Provides up to 500mA of current to the device
  • Precision power regulation tolerates cable losses
  • Short-circuit protected with automatic recovery
  • Includes soft-start circuitry to limit turn-on surge
  • Uses standard USB cables (not included)
  • No configuration or software required
  • RoHS compliant (lead-free)

PERFORMANCE

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Operating Temperature

 

-40

 

85

°C

Electrical Isolation

 

1500

 

 

V

Isolation Resistance

 

1000

 

 

Isolation Capacitance

 

 

1000

 

pF

Output Supply Accuracy

Output Current ≤ 500mA

-3

±1

+3

%

Common-mode Transient Immunity

 

25

35

 

kV/µs

Dimensions (inches): 3.2L x 0.8W x 0.6H

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