ADL5308ACCZ-R7

Overview

The ADL5308ACCZ-R7 is a logarithmic transimpedance amplifier optimized for wide dynamic range signal level monitoring in fiber optic systems. It produces an accurate, temperature-compensated output voltage proportional to the logarithm of the ratio between the input current at pin INP and a reference current. The device features a fast transient response with rise/fall times under 2.4 µs and settling times under 3.5 µs. It offers a logarithmic slope of 200 mV/decade and operates over an input current range from 10 pA to 25 mA.

Feature Summary

• Fast transient response with flat frequency response and no undershoot
• Accurately trimmed logarithmic response with low conformance error
• Built-in comparator with adjustable hysteresis and latch enable
• Adaptive photodiode biasing to minimize dark current and saturation

Applications

• Optical power monitoring
• Erbium-doped fiber amplifiers (EDFA)

Procurement Notes

Verify the specific ordering suffix R-7 indicates reel packaging when sourcing components. Confirm that the manufacturer part number matches the requested specifications exactly. Ensure compatibility with I2C interface requirements for configuration. Check for any regional shipping restrictions or availability limitations before finalizing procurement plans.

Selection Notes

Select this component for applications requiring high-speed optical signal monitoring with wide dynamic range. Consider the small LGA package size for space-constrained designs. Evaluate the need for adaptive photodiode biasing to optimize performance across varying light levels. Ensure the system can support the required 5V supply voltage and I2C communication protocols.

Part Context

This device belongs to the ADL5308 series of logarithmic converters manufactured by Analog Devices Inc. It is designed specifically for fiber optic applications where precise signal level monitoring is critical. The component integrates multiple functions into a single chip to reduce external component count and simplify circuit design.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.