DS1864T+

Overview

The DS1864T+ is a laser driver and diagnostic integrated circuit designed for SFP optical transceivers. It operates on a single power supply ranging from 2.9 V to 5.5 V with a typical quiescent current of 3 mA. The device is housed in a TQFN-28 surface-mount package and supports operation within an extended temperature range of -40°C to +95°C. This component integrates control logic and diagnostic monitoring capabilities required for high-speed serial data transmission applications.

Feature Summary

• Integrated laser driver functionality optimized for SFP form factor modules
• Built-in diagnostic monitoring interface for real-time performance tracking
• Single-supply operation supporting standard voltage levels
• Compact surface-mount packaging suitable for dense board layouts

Applications

• SFP optical transceiver modules
• High-speed serial data communication systems
• Fiber optic network interfaces

Procurement Notes

Verify the specific suffix designation against the manufacturer datasheet to confirm exact electrical characteristics and pinout compatibility. Confirm RoHS compliance status and lead times through authorized distributors, as availability may vary by region. Ensure the selected variant matches the required operating temperature range and package type for your specific design implementation.

Selection Notes

Select this component when designing SFP-based optical links requiring integrated laser control and diagnostics. Evaluate the power supply voltage constraints and thermal management requirements relative to the specified operating temperature range. Consider the TQFN-28 footprint dimensions during PCB layout to ensure adequate thermal dissipation and signal integrity for high-speed digital interfaces.

Part Context

This part belongs to the Maxim Integrated laser driver family, specifically engineered for small form-factor pluggable optical modules. It combines drive electronics with diagnostic feedback, simplifying the design of compliant SFP transceivers. The series supports various baud rates common in telecommunications and data networking standards.

Replacement Considerations

Consult official Analog Devices documentation for qualified substitute part numbers. Verify pin-to-pin compatibility and functional equivalence before substitution.