ADL5306ACP-R2

Overview

The ADL5306ACP-R2 is a low-cost logarithmic converter designed for fiber optic photodiode interfacing. It measures input current over a 60 dB dynamic range (100 nA to 100 µA) with a nominal slope of 10 mV/dB and intercept at 1 nA. The device operates on a single supply from 3 V to 5.5 V or dual supplies up to ±5.5 V, consuming approximately 5 mA quiescent current. It features a 16-lead LFCSP package.

Feature Summary

• Optimized for direct interfacing with fiber optic photodiodes
• Supports full log-ratio measurement capabilities
• Includes an integrated buffer amplifier for signal conditioning
• Temperature stable operation across industrial ranges

Applications

• Low cost optical power measurement
• Wide range baseband logarithmic compression
• Measurement of current and voltage ratios
• Optical absorbance measurement

Procurement Notes

Verify the specific suffix 'R2' against official Analog Devices documentation to confirm reel packaging specifications. Ensure compatibility with the standard LFCSP-16 footprint. Confirm RoHS compliance status through the manufacturer's latest product data sheet before finalizing procurement plans.

Selection Notes

Select this component when designing systems requiring precise logarithmic conversion of small photocurrents. It is suitable for battery-operated applications due to its low quiescent current consumption. Consider the external resistor requirements for setting the reference current and adjusting the logarithmic slope if higher sensitivity is needed.

Part Context

Derived from the AD8304 and AD8305 translinear logarithmic converters, the ADL5306 provides wide measurement dynamic range in a microminiature form factor. It utilizes a translinear core to convert input current into a precise logarithmic voltage output, facilitating easy integration into supervisory systems.

Replacement Considerations

The ADL5304 and ADL5305 are related devices within the same family offering similar translinear logarithmic conversion functions. Verify pinout compatibility and dynamic range specifications when considering these alternatives.