ADL5306

PRODUCTION

60 dB-RANGE (100 nA-100 µA) Low-Cost Logarithmic Converter

Data Sheet (Rev. 0) Product Selection Table

Part Models: 2
1ku List Price: Starting From $5.59

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Overview

Optimized for fiber optic photodiode interfacing
Measures current over 3 decades
Law conformance 0.1 dB from 100 nA to 100 µA
Single- or dual-supply operation (3 V to ±5.5 V total)
Nominal slope of 10 mV/dB (200 mV/decade)
Nominal intercept of 1 nA (set by external resistor)
Optional adjustment of slope and intercept
Full log-ratio capabilities
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 quiescent current

The ADL5306 is a low cost micro-miniature logarithmic converter optimized for the determination of 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. A single supply voltage of between 3 V and 5.5 V is adequate; dual supplies may optionally be used. The low quiescent current (typically 5 mA) permits use in battery-operating applications

The input current I_PD of 100 nA to 100 µA applied to the INPT pin is the collector current of an optimally-scaled NPN transistor, which converts this current to a voltage (its V_BE) with a precise logarithmic relationship. A second such converter is used to handle the reference current, I_REF, applied to pin IREF. These input nodes are biased slightly above ground (0.5 V). This is generally acceptable for photodiode applications where the anode does not need to be grounded. Similarly, this bias voltage is easily accounted for in generating I_REF. The output of the logarithmic front-end is available at pin VLOG.

Part Models: 2
1ku List Price: Starting From $5.59

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADL5306ACPZ-R2	16-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADL5306ACPZ-REEL7	16-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Feb 13, 2014 - 14_0038 Conversion of 3x3mm body Size LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to Amkor Philippines.
		PCN14_0038_Form Material_Report Detailed Change Description Package Outline Drawing Qualification Report Summary
ADL5306ACPZ-R2	PRODUCTION
ADL5306ACPZ-REEL7	PRODUCTION