Product category:
Circuit Protection Devices
News Release from: Avago Technologies | Subject: 3.3 V, 15 MBd digital optocouplers
Edited by the Electronicstalk Editorial
Team on 11 November 2004
Devices reduce part count and board
space
Agilent Technologies has introduced what is said to be the industry's first 3.3 V, 15 MBd, multi-channel and bi-directional digital optocouplers for use in a wide range of applications.
Agilent Technologies has introduced what is said to be the industry's first 3.3 V, 15 MBd, multi-channel and bi-directional digital optocouplers for use in a wide range of consumer, computing, communications and industrial applications Agilent's patented manufacturing technology for stacking LEDs provided the integration breakthrough necessary to develop multi-channel optocouplers that allow OEMs to reduce part count, board space and system costs
This article was originally published on Electronicstalk on 8 Nov 2004 at 8.00am (UK)
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The integration of two, three and four optocouplers is achieved through stacking LED die and an insulating layer on a silicon substrate.
Optocouplers provide electrical (galvanic) isolation of signal lines to protect low-voltage circuitry from high-voltage surges.
They operate by converting electrical signals into optical signals that are transmitted across a transparent insulating material and then converted back to electrical signals.
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They also eliminate electrical noise and interference.
The ACSL-6xx0 series optocouplers provide minimum 10 MBd operating speeds, with 15 MBd typical performance.
With an insulating material between the LED and active circuitry, the optocoupler provides safe, high-voltage insulation performance.
The series includes dual-, triple- and quad-channel versions.
They are supplied in compact 8-pin (4.9 mm x 5.9 mm x 1.7 mm for dual-channel) and 16-pin (9.9 mm x 5.9 mm x 1.7 mm for triple- and quad-channel) thin small outline integrated circuit (SOIC) packages to further reduce board-space requirements.
The optocoupler's bi-directional capability simplifies signal routing on PC boards.
In computer systems, the Agilent ACSL series optocouplers provide the benefits of reduced part count and board space for parallel interfaces and serial interfaces such as RS232/485/422, SPI (serial peripheral interface), and Inter-Integrated Circuit (I2C) bus.
They offer the same benefits in industrial, test and measurement, and medical systems for PLC (programmable logic controllers), fieldbus interfaces and data acquisition; in communications applications such as POE (power-over-Ethernet) and networking boards; and for plasma display panels and other consumer appliances.
The Agilent optocouplers exhibit high common-mode rejection of 10 kV/microsecond minimum and operate from 3.0 V to 5.5 V supply voltages, with an operating temperature range of -40 C to +100 C.
These devices are pending safety regulatory approval.
They are designed to meet the most widely accepted international safety regulations: UL1577 (2500 Vrms), CSA Component Acceptance Notice No.
5, and the newly established standard to replace VDE 0884, IEC/EN/DIN EN 60747-5-2.
The Agilent ACSL-6400 is available now through Agilent's direct sales channel and worldwide distribution partners. Request a free brochure from Avago Technologies ...
Agilent plans to introduce the following optocouplers in the third quarter of 2005: * ACSL-6300 -- triple unidirectional channels * ACSL-6310 -- triple bi-directional (2/1) channels * ACSL-6410 -- quad bi-directional (3/1) channels * ACSL-6420 -- quad bi-directional (2/2) channels.
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