HMC974LC3C Datasheet, PDF (1/8 Pages) Hittite Microwave Corporation – 10 GHz, HIGH SPEED WINDOW COMPARATOR

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Typical Applications
The HMC974LC3C is ideal for:
• ATE Applications
7
• High Speed Instrumentation
• Clock and Data Restoration
• Semiconductor Test Systems
• EW Systems - Threshold Detection
HMC974LC3C
10 GHz, HIGH SPEED
WINDOW COMPARATOR
Features
Propagation delay: 88 ps
Overdrive & Slew Rate Dispersion: 20 ps
Minimum Detectable Pulse Width: 60 ps
Differential Latch Control
Power Dissipation: 240 mW
16 Lead 3x3mm SMT Package: 9mm²
7-1
Functional Diagram
General Description
The HMC974LC3C is a SiGe monolithic, ultra fast
window comparator with level latched output driver with
reduced swings. The window comparator is based on
the HMC674LC3C single comparator and incorporates
two such comparators and additional output logic.
Three output ports detect whether an analog input
signal is above, below or between two reference levels
supplied at its input as shown on the timing diagram
herein.
The outputs are single-ended negative logic. Incor-
porating two proven comparators at the input provides
good DC and dynamic matching and reduces the
input capacitance. The reduced swing output stages
are designed to directly drive 400 mV into 50 Ohms
terminated to a voltage Vterm = Vcco-2 V.
HMC974LC3C features high speed latches that can
either be enabled to latch the output data, or can be
left in the transparent mode to implement a tracking
window comparator.
Electrical Specifications, T_A = +25 °C
NS = -3V, PS = +3.3V, Vcco = +2V, V_TERM = 0V, VCM = 0V, VOD = 50mV ^[1]
Parameter
DC INPUT CHARACTERISTICS
Offset voltage
Bias current
Differential voltage (max)
Input impedance WIN to WIT
Input impedance RT to WIT
Input impedance RB to WIT
Common Mode Input Voltage Range
Input Capacitance
Conditions
Min.
Typ.
Max
Units
-10
±4
10
mV
WIT Termination Open
-30
20
30
uA
-2
2
V
50
Ohms
50
Ohms
50
Ohms
-1.5
1.5
V
1
pF
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Order On-line at www.hittite.com