3.3V Optocoupler from Avago is Industry's Fastest

29th May 2006
Posted By : ES Admin
3.3V Optocoupler from Avago is Industry's Fastest

Avago Technologies has just introduced what is said to be the industry's fastest 3.3 V/5 V CMOS-compatible optocoupler, capable of transmitting data at 25 megabaud (MBd). This speed makes it ideal for high-speed, data-line transmission applications, such as those in industrial networking, including PROFIBUS and DeviceNet.

These fieldbus networks which interconnect sensors, actuators and controllers, typically need isolation at each interface location to increase data integrity and provide protection from power faults and ground-loop effects.

Avago Technologies' new ACPL-072L high-speed optocoupler is also used in applications such as analog-to-digital conversion, digital I/O ports, computer peripheral interfaces and microprocessor system interfaces. Optocouplers separate and protect sensitive circuitry, allowing for a safe interface between high and low voltages in electronic systems.

"Our new high-speed optocoupler provides dual operating voltages with performance across the wide industrial operating temperature range," said Kheng-Jam, Lee, worldwide marketing manager for isolation products in Avago Technologies' Optical Communication Solutions Division. "This device provides reinforced isolation and offers designers greater flexibility to select supply voltages, reduces level-shifting circuitry and lowers the power consumption."

Built with the latest CMOS IC technology, the Avago ACPL-072L optocoupler achieves exceptional high-speed performance with compatible CMOS and TTL logic. The optocoupler's CMOS output eliminates the need for a pull-up resistor at the output stage. The ACPL-072L operates at either 3.3 V or 5 V and features 6 nanosecond (ns) maximum pulse width distortion, which helps to maintain high data integrity over longer distances. The device exhibits high common-mode rejection of 10 kV/microsecond minimum, with 40 ns maximum propagation delay, and 20 ns maximum propagation delay skew over an operating temperature range of -40 C to +105 C.

The ACPL-072L high-speed optocoupler is supplied in the SO-8 package in 10,000-piece quantities.

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