Agilent's 50-MBd optocouplers protect high-speed data circuits

Palo Alto, CA—Agilent Technologies Inc. introduced Dec. 2 what it states are its industry's fastest optocouplers—capable of transmitting data at 50 megabaud (MBd), which is reported to be ideal for use in a variety of industrial and commercial applications.

12/06/2002


Palo Alto, CA— Agilent Technologies Inc.

Optocouplers separate and protect sensitive circuitry to allow safe interface between high and low voltages in electronic systems. Agilent's HCPL-7723/0723 optocouplers suring absolute isolation.

'Agilent's new high-speed devices allow effective high-speed data collection and control in industrial automation applications where isolation is required,' said Chong Tze Siong, vp and gm of Agilent's Isolation Products division.

Fieldbus communication networks, such as Profibus and DeviceNet, make possible effective data collection and control in industrial automation. These networks, interconnecting 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. As these communication networks migrate to higher speed data transmission rates, higher speed optocouplers are required.

Besides being useful in communication settings, Agilent's new HCPL-7723/0723 optocouplers are suited for other applications, such as digital isolation for analog-to-digital conversion, digital I/O ports, computer peripheral interfaces and microprocessor system interfaces.

In addition, HCPL-7723/0723 optocouplers meet the widely accepted international safety regulations. They are recognized under UL1577; approved under CSA Component Acceptance Notice No. 5; and approved according to VDE 0884/06.92, including Certificate R9650938 for TUV/ Rhineland.

Available in either eight-pin DIP (HCPL-7723) or more-compact SO-8 package style (HCPL-0723), Agilent adds that its optocouplers feature CMOS IC technology to achieve high-speed performance. Both HCPL-7723/0723 high-speed optocouplers combine a CMOS LED driver IC, a high-speed LED and a CMOS detector IC in one package. A CMOS logic input signal controls the LED driver IC, which supplies current to the LED. The detector IC incorporates an integrated photodiode, a high-speed transimpedance amplifier, and a voltage comparator with an output driver.

Control Engineering Daily News Desk
Jim Montague, news editor
jmontague@reedbusiness.com





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