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Digital CMOS Optocoupler

BioPhotonics
Oct 2012
Avago Technologies Fiber Austria GmbHRequest Info
 
BOEBLINGEN, Germany, July 13, 2012 — Avago Technologies has announced the ACNW261L ultralow-power 10-MBd digital CMOS optocoupler for high-voltage insulation requirements. It consumes <18 mW and features 5-kV reinforced insulation voltage.

In renewable energy generation systems, industrial, medical equipment, and electrical equipment used in harsh environments applications, there may be requirements to support internal system communication speed of 10 MBd with lower power consumption and high insulation voltage. The ACNW261L’s supply current is <1.5 mA over the −40 to 105 °C temperature range. Both 3.3- and 5-V applications are supported. The input LED current is 4 mA.

The ACNW261L features input-to-output insulation voltage of 5000 volts rms. With reinforced insulation, the optocoupler meets the IEC 607475-5-5 working voltage requirement of 1414 volts peak, internal clearance of 1 mm, external creepage of 10 mm and external clearance of 9.6 mm. By using an internal Faraday shield, it delivers common mode transient rejection performance of 20 kV/µs minimum, 35 kV/µs typical, at 1000-V common mode voltage.

An enable pin sets the CMOS output stage to a high impedance state for bus interface versatility. Slew rate-controlled output ensures stable rise and fall times over temperature and operating conditions, which is important for parallel interface applications.

Applications include CANBus, RS-232, RS-485, I2C, digital Fieldbus, and analog-to-digital and digital-to-analog converter interfaces. By meeting medical equipment standard IEC 60601-1 rev 3 requirements, medical equipment suppliers can also use the digital optocoupler with 1-mm internal clearance.

The single-channel ACNW261L is available in a 400-mil-wide 8-lead dual-in-line package.

For more information, visit: www.avagotech.com


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