9.3 GHz Latched Comparator
with RSPECL Output Stage
HMC674LC3C/HMC674LP3E
Data Sheet
FEATURES
FUNCTIONAL BLOCK DIAGRAM
HMC674LC3C/HMC674LP3E
Equivalent input bandwidth: 9.3 GHz typical
Propagation delay: 85 ps typical
Overdrive and slew rate dispersion: 10 ps typical
Input signal minimum pulse width: 60 ps typical
Resistor programmable hysteresis
Differential latch control
Power dissipation: 140 mW typical
VTP
INP
1
2
3
4
12
11
10
9
V
CCO
50Ω
50Ω
Q
Q
INN
VTN
V
CCO
16-terminal, 3 mm × 3 mm, ceramic leadless chip carrier (LCC)
16-lead lead frame chip scale package (LFCSP)
PACKAGE
BASE
V
EE
APPLICATIONS
Figure 1. HMC674LC3C/HMC674LP3E Functional Block Diagram
Automatic test equipment (ATE) applications
High speed instrumentation
Digital receiver systems
Pulse spectroscopy
High speed trigger circuits
Clock and data restoration
GENERAL DESCRIPTION
The HMC674LC3C/HMC674LP3E are silicon germanium
(SiGe), monolithic, ultrafast comparators that feature reduced
swing positive emitter-coupled logic (RSPECL) output drivers
and latch inputs. These comparators support 10 Gbps operation
and provide 85 ps propagation delay and an input signal
minimum pulse width of 60 ps with 0.2 ps rms of random jitter
(RJ). Overdrive and slew rate dispersion is typically 10 ps, making
the HMC674LC3C/HMC674LP3E ideal for a wide range of
applications from ATE to broadband communications. The
RSPECL output stages directly drive 400 mV into a 50 Ω resistor
terminated to VTT = (VCCO − 2.0 V), where VTT is the PECL
termination voltage (see Figure 16). The HMC674LC3C/
HMC674LP3E feature a high speed latch and programmable
hysteresis. These devices can operate in either latch mode or as
a tracking comparator.
Rev. K
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rightsof third parties that may result fromits use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks andregisteredtrademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Technical Support
©2016 Analog Devices, Inc. All rights reserved.
www.analog.com