MAX3747AEUB-T

Overview

The MAX3747AEUB+T is a multirate limiting amplifier IC designed for optical receiver applications. It operates within a supply voltage range of +2.97V to +3.63V and supports data rates from 155Mbps to 3.2Gbps. The device provides approximately 57dB to 61dB of gain with a typical supply current of 18mA excluding output current. It features PECL-compatible differential inputs and CML outputs with an 800mV peak-to-peak swing. The component is housed in a 10-pin µMAX package and functions as a data quantizer for SONET, Fibre-Channel, and Gigabit Ethernet systems.

Feature Summary

• Pin-for-pin compatible with Micrel SY88993V
• Programmable loss-of-signal detect with chatter-free operation
• Optional disable function for squelch implementation
• Enhanced LOS operation under overload conditions (MAX3747B variant)

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 specific suffix against the manufacturer's official documentation to confirm lead-free status and temperature range. Confirm that the ordering code matches the exact functional variant required, as different suffixes may indicate distinct performance characteristics or packaging types. Ensure compatibility with existing board layouts due to the specific pin configuration.

Selection Notes

Select this component for designs requiring low-power limiting amplification in small form-factor transceivers. Consider the MAX3747B variant if enhanced loss-of-signal behavior under input overload conditions is necessary. Verify that the system can accommodate the 10-pin µMAX package dimensions and thermal requirements for industrial temperature ranges.

Part Context

This part belongs to the MAX3747 family of low-power SFP limiting amplifiers manufactured by Maxim Integrated, now part of Analog Devices Inc. The series is engineered for high-speed optical communication receivers, providing signal conditioning and quantization for various fiber optic standards.

Replacement Considerations

The datasheet explicitly states pin-for-pin compatibility with the Micrel SY88993V.