ADL5310ACP-R2

Overview

The ADL5310ACP-R2 is a dual logarithmic converter manufactured by Analog Devices Inc. It operates within a supply voltage range of 3 V to 12 V and consumes less than 10 mA of quiescent current. The device provides a 120 dB input dynamic range, supporting currents from 3 nA to 3 mA with a nominal slope of 10 mV/dB (200 mV/dec). It features two independent channels optimized for photodiode interfacing, housed in a space-efficient 24-lead 4 mm × 4 mm LFCSP package.

Feature Summary

• Dual independent channels optimized for photodiode interfacing
• Temperature-stable logarithmic outputs with externally scalable slope
• User-configurable output buffer amplifiers for signal processing

Applications

• Gain and absorbance measurements
• Multichannel power monitoring
• General-purpose baseband log compression

Procurement Notes

Verify the specific suffix 'R2' against official documentation to confirm packaging type and reel specifications. Ensure compatibility with single or dual-supply configurations as required by the system design. Confirm that the exposed pad connection requirements are met during assembly to maintain thermal performance and electrical grounding integrity.

Selection Notes

Select this component when wide dynamic range conversion is required for optical communication systems. It serves as an alternative to the AD8305 with enhanced range. Consider its low power consumption and compact footprint for space-constrained designs. Verify that the external resistor network aligns with the desired intercept and slope settings for the specific application.

Part Context

This part belongs to the ADL5310 series of dual logarithmic converters. It utilizes a translinear structure based on bipolar transistor characteristics. The device integrates internal bias circuitry shared between channels to improve power consumption and channel matching. It is designed for applications requiring precise logarithmic conversion over a broad current range.

Replacement Considerations

The ADL5310 is functionally equivalent to the dual AD8305 but offers an enhanced dynamic range of 120 dB. When substituting, verify that the pinout and package dimensions match the existing board layout. Ensure that the reference current setting resistors are adjusted to maintain the correct logarithmic intercept.