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High Speed Latched Comparator-RSPECL SMT, 10 GHz

Product Details

Data Sheet
Application Notes
Package Layout
Tape & Reel

Quality & Reliability

Environmental Data Sheet
Qualification Test Reports

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Featured Article
Product Press Release

Life Cycle Status

Production, Recommended for New Designs

Analog Input Bandwidth (GHz) Function Deter-
ministic Jitter (ps)
DC Power Consumption (mW) Vcci, Vcco, Vterm, Vee Power Supply (Vdc) Package
10 Latched Comparator-RSPECL 2 140 +3.3, +3.3, +1.3, -3 LC3C


• Propagation Delay: 85 ps
• Overdrive & Slew Rate Dispersion: 10 ps
• Minimum Pulse Width: 60 ps
• Resistor Programmable Hysteresis
• Differential Latch Control
• Active Gain: 48 dB
• Power Dissipation: 140 mW
• RSCML and RSECL Versions Available
• 16 Lead Ceramic 3x3mm 
   SMT Package: 9mm²

Typical Applications

• ATE Applications
• High Speed Instrumentation
• Digital Receiver Systems
• Pulse Spectroscopy
• High Speed Trigger Circuits
• Clock & Data Restoration

Functional Diagram

HMC674LC3C Functional Diagram

General Description

The HMC674LC3C is a SiGe monolithic, ultra fast comparator which features reduced swing PECL output drivers and latch inputs. The comparator supports 10 Gbps operation while providing 85 ps propagation delay and 60 ps minimum pulse width with 0.2 ps rms random jitter (RJ). Overdrive and slew rate dispersion are typically 10 ps, making the device ideal for a wide range of applications from ATE to broadband communications.

The reduced swing PECL output stages are designed to directly drive 400 mV into 50 Ohms terminated to +1.3V while maintaining compatibility with other PECL logic families. The HMC674LC3C features high speed latch and programmable hysteresis and may be configured to operate in either latch mode, or as a tracking comparator.