HMC674LP3E

Overview

The HMC674LP3E is a silicon germanium monolithic ultrafast comparator featuring RSPECL output drivers and latch inputs. It supports 10 Gbps operation with an equivalent input bandwidth of 9.3 GHz typical and propagation delay of 85 ps typical. The device operates on VCCI (3.135–3.465 V), VCCO (1.8–3.465 V), and VEE (-3.15 to -2.85 V) supplies, dissipating 140 mW typical power. It includes resistor-programmable hysteresis, differential latch control, and an offset voltage of ±5 mV. Packaged in a 16-lead LFCSP.

Feature Summary

• Features reduced swing positive emitter-coupled logic (RSPECL) output stages capable of directly driving 400 mV into a 50 Ω resistor terminated to VTT.
• Includes a high-speed latch and resistor-programmable hysteresis for configurable noise immunity and signal holding capabilities.
• Supports both track mode, where the output follows logical input values, and latch mode, where outputs hold the comparison result upon enable transition.

Applications

• Automatic test equipment (ATE) applications
• High speed instrumentation
• Digital receiver systems
• Pulse spectroscopy
• Clock and data restoration

Procurement Notes

Verify the specific package option when ordering, as the HMC674 series includes both ceramic leadless chip carrier and plastic lead frame chip scale package variants. Confirm that the selected component matches the required MSL rating and lead finish specifications for your assembly process. Ensure supply chain documentation aligns with Analog Devices manufacturing standards for this silicon germanium technology node.

Selection Notes

Select the HMC674LP3E for designs requiring sub-nanosecond response times and precise timing resolution in high-frequency environments. Consider the 85 ps propagation delay and low jitter characteristics when designing clock distribution or data recovery circuits. Evaluate the power supply requirements carefully, noting the distinct voltages needed for the input stage, output stage, and negative rail to ensure proper biasing and performance stability.

Part Context

This component belongs to the HMC674 family of ultrafast comparators manufactured by Analog Devices using silicon germanium technology. It is functionally paired with the HMC674LC3C, which shares identical electrical specifications but utilizes a different ceramic package. Both devices are designed for broadband communications and high-speed digital applications requiring minimal signal distortion.

Replacement Considerations

HMC674LC3C