Product category:
Analogue and Mixed Signal ICs
News Release from: Analog Devices | Subject: AD8304
Edited by the Electronicstalk Editorial
Team on 21 December 2001
Convertor improves optical measurements
Analog Devices is claiming the industry's most cost-effective integrated solution for optical power measurement, useful across a wide range of optical networking applications.
Analog Devices is claiming the industry's most cost-effective integrated solution for optical power measurement, useful across a wide range of optical networking applications The single-chip AD8304 logarithmic convertor directly interfaces to fibre-optic photodiodes and can be easily designed into optical amplifiers, optical switches, and transmit laser modules
This article was originally published on Electronicstalk on 2 Jul 2008 at 8.00am (UK)
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The AD8304 logarithmic convertor delivers very high performance while overcoming the expense associated with hybrids and the calibration complexities associated with switched-gain transimpedance amplifier solutions.
The result is an exceptionally flexible, easy to use, and cost-effective IC solution.
"The AD8304 improves optical system performance by offering greater precision and dynamic range than alternative solutions", said Jay Cormier, product line director, RF Standard Products Group, Analog Devices.
"By leveraging Analog Devices' proprietary, industry-leading logarithmic amplifier technology, we were able to offer a flexible IC solution with very precise power measurement capability that can be used throughout the optical network to address all the possible system variations".
The AD8304 is a monolithic logarithmic convertor that interfaces directly with a broad range of photodiodes.
It offers 160dB dynamic range, 0.1dB accuracy, and a 14-pin TSSOP package, and operates from a single 5V supply.
The DC output provides a log-scaled representation of the input current.
A proprietary adaptive photodiode bias function maximises photodiode performance.
The AD8304 will be released at the end of January 2002 and is priced at $19.80 in 1000-piece quantities.
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