Analog Devices Inc. ADuM140x Quad-Channel Digital Isolators

Analog Devices Inc. ADuM140x Quad-Channel Digital Isolators feature 4/0 channel directionality based on iCoupler® technology. A digital isolator is used to eliminate ground-loop errors that can cause noise, hum and interference in digital components. iCoupler devices remove the design difficulties commonly associated with optocouplers by avoiding the use of light-emitting diodes and photodiodes. The need for external drivers and other discrete components is eliminated with iCoupler products. The digital isolators can be used in general-purpose multichannel isolation, Serial Peripheral Interface (SPI)/data converter isolation, industrial field bus isolation, transceivers and automotive systems.

Features

Qualified for automotive applications
Low-power operation
- 5V operation
  - 1.0mA per channel maximum at 0Mbps to 2Mbps
  - 3.5mA per channel maximum at 10Mbps
  - 31mA per channel maximum at 90Mbps
- 3V operation
  - 0.7mA per channel maximum at 0Mbps to 2Mbps
  - 2.1mA per channel maximum at 10Mbps
  - 20mA per channel maximum at 90Mbps

Bidirectional communication
3V/5V level translation
125°C high-temperature operation
dc to 90Mbps (NRZ) high-data rate
Precise timing characteristics
- 2ns maximum pulse width distortion
- 2ns maximum channel-to-channel matching
High common-mode transient immunity: >25kV/μs
Output enable function
16-lead SOIC wide body package
RoHS-compliant models available