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ADUM1201 2 Channel Magnetic Isolator

  • Image 1
Price:
$5.95
SKU:
COM-CB0242
Current Stock:
8
Quantity:


Product Description

This is a dual channel digital isolators based on Analog Devices iCoupler technology. Combining high speed CMOS and monolithic transformer technology, these isolation components provide outstanding performance characteristics superior to alternatives such as optocoupler devices.

By avoiding the use of LEDs and photodiodes, this device removes the design difficulties commonly associated with optocouplers. The typical optocoupler concerns regarding uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects are eliminated with the simple digital performance characteristics. The need for external drivers and other discrete components is eliminated with these component. Also this electromagnetic-based isolation method is superior to the optocoupler in terms of resistance to high temperatures.

This digital isolator has a higher data transfer rate, higher isolation voltage, better timing accuracy and transient common mode rejection than typical optocoupler. In addition, unlike the optocoupler, this technology provides both forward and reverse communication channels in the same chip, which makes the transmission direction of the signal more flexible and simplifies the hardware connection between the chips.

This device includes two fully isolated channels in the same circuit board and it's area is about ​​40% of the traditional optical isolators.

Specifications:

  • Input signal voltage: 2.7-5.5 V,
  • Output port voltage: 2.7-5.5 V,
  • Data rate: up to 125 Mbps,
  • Dimensions (in mm): 21 X 10.2 X 3.1

 

The ADUM1201 has two power supplies and reference ground, and the supply voltage range is between 2.7V and 5.5V, which enables low-voltage operation, further reducing system power consumption. Between the power supply and the reference ground need to access 0.01μF to 0.1μF capacitor to filter out high-frequency interference, the distance between the capacitor and the power should be within 20mm, so you can achieve better filtering results. It should be noted that GND1 and GND2 are two different references, otherwise it will not achieve the effect of isolation.


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