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.