NT24L55-WP

Overview

The NT24L55 is a high-performance CMOS transimpedance amplifier (TIA) designed for optical communication applications. It operates at a data rate of 1.25Gbps and features an ultra-high sensitivity with a dynamic operating range of 35dB. The device provides a gain of 46kΩ and a bandwidth of 0.75GHz, powered by a single 3.3V supply. With a noise specification of 74nA, it is optimized for FTTH systems such as GEPON transceivers and long-haul telecom or datacom applications.

Feature Summary

• Ultra-high sensitivity CMOS architecture
• Wide dynamic operating range
• Integrated automatic gain control

Applications

• FTTH GEPON transceivers
• Long haul telecom applications
• Datacom fiber applications

Procurement Notes

Verify the specific ordering suffix to confirm package type and temperature range. Ensure compatibility with existing photodiode interfaces. Confirm that the 3.3V supply voltage aligns with system power requirements. Check for any required external components for optimal performance.

Selection Notes

Select this component for designs requiring high sensitivity at 1.25Gbps. The integrated AGC simplifies receiver design in varying optical power conditions. Consider the 35dB dynamic range for link budget flexibility. Evaluate thermal management needs based on the CMOS process characteristics.

Part Context

Semtech offers a comprehensive portfolio of optical ICs including TIAs, laser drivers, and CDRs. The NT24L55 belongs to the TIA family, which provides wideband, low-noise pre-amplification for PIN photodiodes or APDs. This product line supports standards from OC-3 to 100Gbps, targeting PON, Ethernet, and CPRI markets.

Replacement Considerations

The NT24L50 is a similar 1.25Gbps TIA with AGC but offers different gain and noise specifications. Verify pinout compatibility and electrical parameters before substitution.