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AD8305 - Logarithmic Converter

General Description

The AD83051 is an inexpensive microminiature logarithmic converter optimized for determining optical power in fiber optic systems.

It uses an advanced implementation of a classic translinear (junction based) technique to provide a large dynamic range in a versatile and easily used form.

Key Features

  • Optimized for fiber optic photodiode interfacing Measures current over 5 decades Law conformance 0.1 dB from 10 nA to 1 mA Single- or dual-supply operation (3 V to 12 V total) Full log-ratio capabilities Nominal slope of 10 mV/dB (200 mV/decade) Nominal intercept of 1 nA (set by external resistor) Optional adjustment of slope and intercept Complete and temperature stable Rapid response time for a given current level Miniature 16-lead chip scale package (LFCSP 3 mm × 3 mm) Low power: ~5 mA quiesc.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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FEATURES Optimized for fiber optic photodiode interfacing Measures current over 5 decades Law conformance 0.