HMC855LC5

Analog Switches, Multiplexers, Demultiplexers Overview

The HMC855LC5 is a 1:4 demultiplexer designed for data deserialization up to 28 Gbps. It samples input data using both rising and falling edges of a half-rate clock, latching data onto four differential outputs. The device operates from a single -3.3V supply with a typical power consumption of 644 mW. Key electrical parameters include a maximum data rate of 28 Gbps, a maximum half-rate clock frequency of 14 GHz, and a propagation delay of 149 ps. The output voltage swing is programmable between 450 mV and 1144 mV via the VR pin. It features fast rise and fall times of 22 ps and supports DC or AC coupling on all inputs and outputs.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Supports high-speed data deserialization up to 28 Gbps using half-rate clock sampling.
• Features a programmable output level control pin (VR) for signal optimization and loss compensation.
• Generates an internal quarter-rate reference clock output for downstream device synchronization.
• Provides flexible interface options with DC or AC coupling capabilities for both clock and data lines.

Analog Switches, Multiplexers, Demultiplexers Applications

• SONET OC-192 systems
• Broadband test and measurement equipment
• Serial data transmission links operating up to 28 Gbps
• FPGA interfacing

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify component authenticity through authorized Analog Devices channels or certified distributors. Confirm RoHS compliance status and MSL rating before assembly. Ensure proper ESD handling procedures are followed due to the sensitivity of the device. Review the datasheet for specific soldering thermal profiles and ground plane requirements to maintain signal integrity.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when designing systems requiring high-speed serial data deserialization at rates up to 28 Gbps. It is suitable for applications needing precise timing with low propagation delay and programmable output drive levels. Consider the 32-lead ceramic package constraints and the requirement for a single -3.3V negative supply during system architecture planning.

Analog Switches, Multiplexers, Demultiplexers Part Context

The HMC855LC5 belongs to the HMC855 series of high-speed multiplexers and demultiplexers manufactured by Analog Devices. This series targets demanding telecommunications and test equipment markets where high bandwidth and low jitter are critical. The LC5 variant specifically provides the 1:4 demux functionality within a compact surface-mount package.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Consult official Analog Devices documentation for verified substitute part numbers. Do not assume functional equivalence with other logic ICs without cross-referencing electrical specifications and pinouts.