ONET2804TY

Overview

The ONET2804TY is a four-channel limiting transimpedance amplifier (TIA) from Texas Instruments, designed for high-speed optical interconnects. It supports data rates up to 28 Gbps per channel with a gain-bandwidth product of 9 GHz and a slew rate of 1100 V/µs. The device operates on a single supply voltage ranging from 3.0 V to 3.63 V, consuming typical supply currents between 27 mA and 30 mA. It features low input bias current and noise current density, housed in a compact WQFN-24 package suitable for surface mount applications across industrial temperature ranges.

Feature Summary

• Integrates four independent limiting TIA channels optimized for high-speed serial optical links
• Provides wide bandwidth and fast transient response for signal integrity at multi-gigabit rates
• Supports flexible power management with adjustable supply voltage requirements

Applications

• High-speed optical transceivers for data center interconnects
• Long-reach and short-reach optical communication modules
• Multi-lane optical backplane interfaces

Procurement Notes

Verify the specific suffix 'TY' against official Texas Instruments documentation to confirm exact packaging, tape-and-reel specifications, and environmental compliance status. Ensure compatibility with existing PCB footprints for the WQFN-24 package. Cross-reference thermal dissipation requirements with system-level cooling designs due to the multi-channel power consumption profile.

Selection Notes

Select this component when designing systems requiring four parallel high-speed optical receive paths. Compare performance metrics such as input noise current density and bandwidth against alternative TI models like the ONET2804TLP if lower power consumption is critical. Evaluate the trade-off between the 28 Gbps capability and the required supply voltage range for your specific power budget constraints.

Part Context

This part belongs to the ONET series of limiting amplifiers and TIAs from Texas Instruments. It complements other high-speed optical interface components by providing the initial signal conditioning stage for photodetectors. The family includes variants with different power profiles and packaging options to suit diverse form factors in optical networking equipment.

Replacement Considerations

The ONET2804TLP is a documented low-power variant within the same functional family. Verify pinout compatibility and electrical parameter differences before substitution.