HMC676LP3ETR

Overview

The HMC676LP3ETR is a SiGe monolithic latched comparator featuring reduced swing ECL (RSECL) output drivers and latch inputs. It supports 10 Gbps operation with a typical propagation delay of 100 ps and a minimum pulse width of 60 ps. The device exhibits 0.2 ps rms random jitter and 10 ps overdrive dispersion. It operates on a +3.3 V input supply, -3 V negative supply, and 0 V output supply, dissipating 120 mW. The component is housed in a 16-lead 3x3 mm SMT package.

Feature Summary

• Features resistor-programmable hysteresis for customizable threshold control
• Supports differential latch control for precise timing acquisition
• Operates in either latch mode or tracking comparator configuration

Applications

• Automated Test Equipment (ATE)
• High Speed Instrumentation
• Digital Receiver Systems
• Pulse Spectroscopy
• Clock & Data Restoration

Procurement Notes

Verify the obsolete status of this component before procurement planning. Confirm if the specific tape-and-reel suffix 'TR' is available from authorized distributors or if only bulk packaging exists. Ensure compatibility with existing PCB land patterns for the 16-lead QFN package. Check for any product change notices regarding pinout or electrical specifications that may affect integration.

Selection Notes

Select this component when high-speed signal comparison with low jitter is required. The RSECL output stage allows direct driving of 50-ohm terminated loads. Consider the programmable hysteresis feature to mitigate noise sensitivity in noisy environments. Verify power supply requirements (+3.3V, -3V, 0V) align with system design constraints.

Part Context

This part belongs to the HMC676 series of ultra-fast comparators manufactured by Analog Devices Inc. (formerly Hittite Microwave Corporation). It is designed for applications demanding high bandwidth and fast response times. The device integrates an input amplifier, a high-speed latch, and an RSECL output buffer within a compact surface-mount package.

Replacement Considerations

HMC675LP3E is listed as a similar replacement option.