HMC875LC3CTR-R5

Overview

The HMC875LC3CTR-R5 is a SiGe monolithic ultra-fast clocked comparator featuring reduced swing CML (RSCML) output drivers. It supports 20 Gbps operation with a typical clock-to-data output delay of 120 ps and 60 ps minimum pulse width. The device exhibits 0.2 ps rms random jitter and 10 ps overdrive/slew rate dispersion. It includes programmable hysteresis, differential clock control, and an input bandwidth of 10 GHz. Power dissipation is typically 130 mW. The component is housed in a 16-lead 3x3 mm SMT package.

Feature Summary

• Ultra-fast SiGe monolithic construction for high-speed signal comparison
• Integrated RSCML output stage designed to drive 400 mV into 50 ohms terminated to ground
• Programmable hysteresis via external resistor connection to Vee
• Differential clock inputs with dedicated return pin for precise timing control

Applications

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

Procurement Notes

Verify the specific suffix 'CTR-R5' against the manufacturer's current documentation, as datasheets may reference the base part number HMC875LC3C. Confirm RoHS compliance status and check for obsolete or limited supply notices directly from Analog Devices or authorized distributors before finalizing procurement plans.

Selection Notes

Select this component when applications require sub-nanosecond propagation delays and low jitter performance at multi-gigabit data rates. Ensure the design accommodates the required dual power supplies (+3.3V and -3V) and utilizes RF circuit design techniques for proper grounding and impedance matching.

Part Context

This device belongs to the HMC875 series of comparators manufactured by Analog Devices Inc., formerly Hittite Microwave Corporation. It is categorized under Amplifier ICs and Analog Comparators. The product line focuses on high-frequency signal processing components utilizing SiGe technology for superior speed and precision.

Replacement Considerations

Consult official Analog Devices documentation for confirmed substitute part numbers. Verify compatibility regarding package dimensions, pinout configurations, and electrical specifications if considering alternative models within the same family.

FAQ

How is hysteresis configured on the HMC875LC3CTR-R5?

Hysteresis is controlled by connecting a resistor between the HYS pin (Pin 14) and the Vee supply. Leaving the pin disconnected minimizes hysteresis.

What are the power supply requirements for this comparator?

The device requires a positive supply voltage (Vcci) of +3.3V and a negative supply voltage (Vee) of -3V.