MAX3747AEUB+

Overview

The MAX3747AEUB+ is a multirate limiting amplifier designed for optical receivers. It operates at data rates from 155Mbps to 3.2Gbps and provides over 57dB of gain. The device accepts differential inputs with amplitudes between 4mVP-P and 1200mVP-P, delivering constant-level CML outputs with an 800mVP-P swing. It features programmable loss-of-signal detection and a disable function. Supply current is typically 18mA excluding output current, operating within a -40°C to +85°C temperature range in a 10-pin µMAX package.

Feature Summary

• Pin-compatible with Micrel SY88993V
• Chatter-free LOS with programmable threshold
• Output DISABLE function

Applications

• Gigabit Ethernet SFP/SFF Optical Transceiver Modules
• 1G/2G Fibre-Channel SFP/SFF Optical Transceiver Modules
• Multirate OC-3 to OC-48 FEC SFP/SFF Optical Transceiver Modules
• 10G LX4 Transceiver Modules

Procurement Notes

Verify the component matches the specific MAX3747A variant rather than the MAX3747B, as the latter includes enhanced LOS operation under overload conditions. Confirm the package type is the 10-pin µMAX configuration. Ensure the ordering suffix indicates lead(Pb)-free/RoHS compliance. Check for any specific revision history updates regarding electrical characteristics before finalizing procurement.

Selection Notes

Select this component when designing optical transceivers requiring pin-for-pin compatibility with Micrel SY88993V devices. It is suitable for applications needing low power consumption and high gain across multirate standards. Consider the MAX3747B if enhanced performance under input overload conditions is required for the loss-of-signal detection circuitry.

Part Context

This part belongs to the MAX3747A/MAX3747B family of low-power SFP limiting amplifiers manufactured by Analog Devices Inc./Maxim Integrated. These devices are specifically engineered for small form-factor receiver modules, providing signal quantization for synchronous optical networks and fiber channel applications.

Replacement Considerations

The datasheet explicitly states that the MAX3747A/MAX3747B are pin-for-pin compatible with the SY88993V from Micrel Semiconductor, Inc.