HMC676LP3E
v00.1110
10 GHz LATCHED COMPARATOR
WITH RSECL OUTPUT STAGE
Features
propagation Delay: 100 ps
overdrive & slew rate Dispersion: 10 ps
minimum pulse Width: 60 ps
resistor programmable Hysteresis
Differential Latch control
active Gain: 45 dB
power Dissipation: 120 mW
rscmL and rspEcL Versions available
16 Lead 3x3mm smt package: 9mm
2
1
comparators - smt
Typical Applications
the Hmc676Lp3E is ideal for:
• atE applications
• High speed Instrumentation
• Digital receiver systems
• pulse spectroscopy
• High speed trigger circuits
• clock & Data restoration
Functional Diagram
General Description
the Hmc676Lp3E is a siGe monolithic, ultra fast
comparator which features reduced swing EcL output
drivers and latch inputs. the comparator supports 10
Gbps operation while providing 100 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 EcL output stage
is designed to directly drive 400 mV into 50 ohms
terminated to -2V. the Hmc676Lp3E features high
speed latch and programmable hysteresis and may
be configured to operate in either latch mode, or as a
tracking comparator.
Electrical Specifications
parameter
Input Voltage range
Input Differential Voltage
Input offset Voltage
T
A
= +25C
[1]
Vcci= +3.3V, Vcco = 0V, Vee = -3V, V
TERM
= -2V
conditions
min.
-2
-1.75
±5
15
15
50
4
50
350
15
45
80
rhys = ∞
±1
typ.
max
2
1.75
Units
V
V
mV
µV / °c
ua
na / °c
µa
Ω
KΩ
KΩ
dB
dB
mV
Input offset Voltage, temperature coefficient
Input Bias current
Input Bias current temperature coefficient
Input offset current
Input Impedance
common mode Input Impedance
Differential Input Impedance
active Gain
common mode rejection ratio
Hysteresis
1-1
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
HMC676LP3E
v00.1110
10 GHz LATCHED COMPARATOR
WITH RSECL OUTPUT STAGE
Latch Enable Characteristics
parameter
Latch Enable Input Impedance
Latch to output Delay, t
pDoL
, t
pDoH
Latch minimum pulse Width, t
pL
Latch Enable Input range
Latch setup time, t
s
Latch Hold time, t
H
conditions
Each pin
VoD = 200 mV
VoD = 200 mV
VoD = 200 mV
VoD = 200 mV
1.6
45
-42
min.
typ.
8
85
20
2.4
max
Units
KΩ
ps
ps
V
ps
ps
1
DC Output Characteristics,
with 50Ω to Vcco - 2V
parameter
output Voltage High Level, Voh
output Voltage Low Level, Vol
output Voltage Differential swing
conditions
min.
-0.89
-1.21
320
typ.
-0.89
-1.25
350
max
-0.95
-1.35
400
Units
V
V
mV
AC Performance
parameter
propagation Delay - t
pD
, t
pDL
, t
pDH
propagation Delay, temperature coefficient
propagation Delay skew
(rising to Falling transition)
VoD Dispersion
tpd vs. common mode Dispersion,
-1.75V <Vcm <1.75V
Noise (rtI)
Equivalent Input Bandwidth
[1]
Deterministic Jitter (pp)
random Jitter (rms)
minimum pulse Width
Q / QB rise time
Q / QB Fall time
From 20% to 80%
From 20% to 80%
Deterministic Jitter at 10 Gbps
with ±100mV overdrive
random Jitter at 10 Gbps
with ±100mV overdrive
9
VoD - 500 mV
50mV < VoD < 1V
VoD = 500 mV
conditions
VoD = 500 mV
min.
70
typ.
100
0.45
10
10
3
5.9
10
2
0.2
60
23
13
16
max
130
Units
ps
ps / °c
ps
ps
ps
nV/√(Hz) rtI
GHz
ps
ps rms
ps
ps
ps
Power Supply Requirements
parameter
Input supply current, Icci
output supply current, Icco
Vee current, lee
power Dissipation, pd
psrr, Vcci
psrr, Vee
conditions
min.
typ.
8
45
16
120
38
38
2
-trIN
2
)
max
Units
ma
ma
ma
mW
dB
dB
where trIN is the 20%/80%
Note 1: Equivalent Input Bandwidth is calculated with the following formula: Bweq=0.22/√ (trcomp
transition time of a quasi-Gaussian signal applied to the comparator input, and trcomp is the effective transition time digitized by the
comparator.
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
1-2
comparators - smt
HMC676LP3E
v00.1110
10 GHz LATCHED COMPARATOR
WITH RSECL OUTPUT STAGE
Propagation Delay vs. Common Mode
15
12.5
10
1
comparators - smt
Dispersion vs. Overdrive Voltage
11
9
DISPERSION (ps)
7
5
3
1
-1
0
10
20
30
40
50
60
70
80
90
100
OVERDRIVE VOLTAGE (mV)
Rising Edge
Falling Edge
Δt
PD
7.5
5
2.5
0
Rising Edge
Falling Edge
-2.5
-5
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
COMMON MODE VOLTAGE (mV)
Output Voltage vs. Temperature
-0.6
Comparator Hysteresis
vs. Rhys Control Resistor
20
-0.8
HYSTERESIS (mV)
46
59
72
85
VOLTAGE (Volts)
16
12
-1
VOH
VOL
8
-1.2
4
-1.4
-45
0
-32
-19
-6
7
20
33
10
100
1000
10000
TEMPERATURE (C)
RESISTANCE (Ohm)
Eye Diagram
1-3
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
HMC676LP3E
v00.1110
10 GHz LATCHED COMPARATOR
WITH RSECL OUTPUT STAGE
Timing Diagram
1
Timing Descriptions
symbol
t
pDH
t
pDL
t
pLDH
t
pLDL
t
H
t
pL
t
s
t
r
t
r
V
oD
timing
Input to output high delay
Input to output low delay
Latch enable to output high delay
Latch enable to output low delay
minimum hold time
minimum latch enable pulse width
minimum setup time
output rise time
output fall time
Voltage overdrive
Description
propagation delay measured from the time the input signal crosses the reference
(± the input offset voltage) to the 50% point of an output low-to-high transition.
propagation delay measured from the time the input signal crosses the reference
(± the input offset voltage) to the 50% point of an output high-to-low transition.
propagation delay measured from the 50% point of the latch enable signal low-to-high
transition to the 50% point of an output low-to-high transition.
propagation delay measured from the 50% point of the latch enable signal low-to-high
transition to the 50% point of an output high-to-low transition.
minimum time after the negative transition of the latch enable signal that the input
signal must remain unchanged to be acquired and held at the outputs.
minimum time that the latch enable signal must be high to acquire an input signal
change.
minimum time before the negative transition of the latch enable signal that an input
signal change must be present to be acquired and held at the outputs.
amount of time required to transition from a low to a high output as measured at the
20% and 80% points.
amount of time required to transition from a high to a low output as measured at the
20% and 80% points.
Difference between the input voltages V
a
and V
B-
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
1-4
comparators - smt
HMC676LP3E
v00.1110
10 GHz LATCHED COMPARATOR
WITH RSECL OUTPUT STAGE
1
comparators - smt
Absolute Maximum Ratings
Input supply Voltage (Vcci to GND)
output supply Voltage (Vcco to GND)
positive supply Differential (Vcci - Vcco)
Input Voltage
Differential Input Voltage
Input Voltage, Latch Enable
applied Voltage (HYs)
maximum Input current
output current
storage temperature
Junction temperature
continuous pdiss (t = 85°c)
(Derate 43.5 mW/°c above 85°c)
thermal resistance (rth) (Junction to Lead)
operating temperature
EsD sensitivity (HBm)
-0.5V to +4V
-0.5V to +4V
-0.5V to +3V
-2V to +2V
-2V to +2V
-0.5V to Vcci +0.5V
Vee to GND
±1 ma
40 ma
-65°c to +150°c
125°c
1.74 W
23 °c/W
-40°c to +85°c
class 1a
ELEctrostatIc sENsItIVE DEVIcE
oBsErVE HaNDLING prEcaUtIoNs
Outline Drawing
NotEs:
1. LEaDFramE matErIaL: coppEr aLLoY
2. DImENsIoNs arE IN INcHEs [mILLImEtErs]
3. LEaD spacING toLEraNcE Is NoN-cUmULatIVE
4. paD BUrr LENGtH sHaLL BE 0.15mm maXImUm.
paD BUrr HEIGHt sHaLL BE 0.05mm maXImUm.
5. pacKaGE Warp sHaLL Not EXcEED 0.05mm.
6. aLL GroUND LEaDs aND GroUND paDDLE mUst BE
soLDErED to pcB rF GroUND.
7. rEFEr to HIttItE appLIcatIoN NotE For sUGGEstED
LaND pattErN.
Package Information
part Number
Hmc676Lp3E
package Body material
roHs-compliant Low stress Injection molded plastic
Lead Finish
100% matte sn
msL rating
msL1
[1]
package marking
[2]
H676
XXXX
[1] max peak reflow temperature of 260 °c
[2] 4-Digit lot number XXXX
1-5
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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