ADUM1201 Dual-channel digital magnetic isolator instead of optocoupler


Analog Devices Inc. ADuM1201 Dual-Channel Digital Isolators
Analog Devices ADuM1201 Dual-Channel Digital Isolators provide outstanding performance characteristics superior to optocouplers. These devices are based on proprietary iCoupler® technology that combines high-speed CMOS and monolithic transformer technologies. The iCoupler devices consume one-tenth to one-sixth the power requirement of optocouplers and eliminate the requirement LEDs, photodiodes, external drivers, and other discrete components. The ADuM1201 Digital Isolators offer 3V/5V level translation, low power operation, bidirectional communication, 3ns precise-timing characteristics, and high-temperature operation at 125°C.
The ADuM1201 isolators provide two independent isolation channels in a variety of channel configurations and data rates. The automotive grade versions that are qualified for 125°C operation per AEC-Q100 of ADuM1201 Series are also available. Typical applications include RS-232/RS-422/RS-485 transceiver isolation, size-critical multichannel isolation, SPI interface/data converter isolation, hybrid electric vehicles, battery monitor, and motor drives.
Description
magnetic insulator is a two-channel analog device based on the iCoupler. It combines high-speed CMOS and monolithic transformer technology. By avoiding the LEDs and photodiodes, it removes problems such as linear transfer functions of temperature. All these are effaced by iCoupler digital interface. The module offers two independent insulating channels and can be used in any configuration.
Specifications
Package: 8-lead SOIC
bidirectional communication
Operating temperature: up to 105 ℃
Transfer speed: 25 Mbps
Voltage: 5V
1.1 mA per channel maximum @ 0 Mbps – 2 Mbps
3.7 mA per channel maximum @ 10 Mbps
8.2 mA per channel maximum @ 25 Mbps
0.8 mA per channel maximum @ 0 Mbps – 2 Mbps
2.2 mA per channel maximum @ 10 Mbps
4.8 mA per channel maximum @ 25 Mbps
Pins
VDD1 – supply voltage insulator 1.
VOA – A logic output
VIB – Entry logic B
GND1 – one insulator pin table
GND2 – pin insulator table for two
VOB – logic output B
VIA – A logical entry
VDD2 – supply voltage insulator 2.
APPLICATIONS
- Size-critical multichannel isolation
- SPI interface/data converter isolation
- RS-232/RS-422/RS-485 transceiver isolation
- Digital field bus isolation
- Hybrid electric vehicles, battery monitor, and motor drives