HMC876LC3C
v04.0810
20 Gbps Clocked COMPARATOR
with RSECL OUTPUT STAGE
1
Typical Applications
Features
The HMC876LC3C is ideal for:
• ATE Applications
Propagation Delay Clock to Output: 120 ps
Overdrive & Slew Rate Dispersion: 10 ps
Minimum Pulse Width: 60 ps
• High Speed Instrumentation
• Digital Receiver Systems
• Pulse Spectroscopy
Resistor Programmable Hysteresis
Differential Clock Control
Input Bandwidth: 10 GHz
• High Speed Trigger Circuits
• Clock & Data Restoration
Power Dissipation: 150 mW
RSCML and RSPECL Versions Available
16 Lead 3x3mm SMT Package: 9mm2
Functional Diagram
General Description
The HMC876LC3C is a SiGe monolithic, ultra fast
comparator which features reduced swing ECL output
drivers and clock inputs. The comparator supports 20
Gbps operation while providing 120 ps clock to data
output delay and 60 ps minimum pulse width with 0.2
ps rms random jitter (RJ). 25 Gbps operation can be
achieved with reduced output voltage swing. 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
ECL output stage is designed to directly drive 400 mV
into 50 Ohms terminated to -2V. The HMC876LC3C
features high speed latches with programmable
hysteresis, and is configured to operate as a clocked
comparator.
Electrical Specifications
[1]
TA = +25C , Vcci = +3.3V, Vcco = 0V, CLK/ CLK = 1.6 to 2.4V, Vee = -3V, VTERM = -2V
Parameter
Input Voltage Range
Conditions
Min.
-2
Typ.
Max
2
Units
V
Input Differential Voltage
Input Offset Voltage
-1.75
1.75
V
5
15
15
50
4
mV
Input Offset Voltage, Temperature Coefficient
Input Bias Current
µV / °C
uA
Input Bias Current Temperature Coefficient
Input Offset Current
nA / °C
µA
Input Impedance
50
350
15
1
Ω
Common Mode Input Impedance
Differential Input Impedance
Hysteresis
KΩ
KΩ
Rhys = ∞
mV
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
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