Based on the iCoupler® and isoPower® chip scale transformer
technology, the ADM3260 is a hot swappable digital and power
isolator with two nonlatching, bidirectional communication
channels, supporting a complete isolated I2C interface, and an
integrated isolated dc-to-dc converter, supporting up to
150 mW of isolated power conversion.
iCoupler is a chip scale transformer technology with functional,
performance, size, and power consumption advantages as
compared to optocouplers. The bidirectional I2C channels eliminate the need for splitting I2C signals into separate transmit
and receive signals for use with standalone optocouplers.
Based on the Analog Devices, Inc., isoPower technology, the
on-chip isolated dc-to-dc converter provides a regulated, isolated
voltage of 3.15 V to 5.25 V with up to 150 mW of output power.
With the ADM3260, the iCoupler and isoPower channels, along
with the I2C transceivers, can be integrated with semiconductor
circuitry, which enables a complete isolated I2C interface and
allows the power converter to be implemented in a small form
factor. The ADM3260 is available in 20-lead SSOP package and
has an operating temperature range of −40°C to+105°C.
isoPower uses high frequency switching elements to transfer power
through its transformer. Special care must be taken during printed
circuit board (PCB) layout to meet emissions standards. See the
AN-0971 Application Note for board layout recommendations
Applications
- Isolated I2C, SMBus, and PMBus interfaces
- Multilevel I2C interfaces
- Central office switching
- Telecommunication and data communication equipment
- −48 V distributed power systems
- −48 V power supply modules
- Networking
