+3.3V, 2.5Gbps Low-Power
Limiting Amplifiers
ABSOLUTE MAXIMUM RATINGS
Power-Supply Voltage (V ).................................-0.5V to +6.0V
Continuous Current at
CC
Voltage at IN+, IN- ..........................(V
Voltage at SQUELCH, CAZ1, CAZ2,
TH, CLOS ...............................................-0.5V to (V
Voltage at LOS, LOS (MAX3272)...........................-0.5V to +6.0V
Voltage at LOS, LOS (MAX3272A) .............-0.5V to (V + 0.5V)
- 2.4V) to (V
+ 0.5V)
CML Outputs (OUT+, OUT-).........................-25mA to +25mA
Continuous Power Dissipation at +85°C
20-Pin Thin QFN (derate 16.9mW/°C above +85°C) ......1.1W
20-Pin QFN (derate 20mW/°C above +85°C) .................1.3W
Storage Ambient Temperature
CC
CC
+ 0.5V)
CC
CC
Voltage at LEVEL...................................................-0.5V to +2.0V
Voltage at OUTPOL...............................................-0.5V to +6.0V
Current into LOS, LOS ..........................................-1mA to +9mA
Range (T
Operating Junction Temperature
).................................................-55°C to +150°C
STG
Range (T ) .....................................................-55°C to +150°C
J
Differential Input Voltage (IN+ - IN-).................................2.5V
Die Attach Temperature...................................................+400°C
Lead Temperature (soldering, 10s) .................................+300°C
P-P
Continuous Current at IN+, IN- ...........................................50mA
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
= +3.0V to +3.6V, T = -40°C to +85°C. Typical values are at V
= +3.3V and T = +25°C, unless otherwise noted.) (Note 1)
CC A
CC
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
33
MAX
UNITS
mA
Supply Current
I
(Note 2)
44
CC
Input Data Rate
2.5
Gbps
Input Voltage Range
Output Deterministic Jitter
Random Jitter
V
Differential
15
1200
27
mV
IN
IN
P-P
P-P
(Notes 3, 4, 5)
(Notes 4, 6)
5
3
ps
ps
RMS
15mV
30mV
< V ≤ 30mV
P-P
90
90
100
220
750
2.2
30
0.9
1.5
50
10
9
130
115
105
P-P
IN
Data Output Edge Speed
(20% to 80%)
(Notes 3, 4)
IN+ to IN-
ps
≤ V ≤ 1200mV
P-P
IN
P-P
Differential Input Resistance
Input-Referred Noise
R
95
Ω
µV
RMS
CML Output Voltage
V
LEVEL open, R
= 50Ω
550
1200
mV
OUT
LOAD
P-P
P-P
Output Signal when Squelched
Power-Supply Noise Rejection
Outputs AC-coupled
mV
PSNR
f ≤ 2MHz (Note 7)
dB
C
C
= open
= 0.1µF
MHz
kHz
Ω
AZ
AZ
Low Frequency Cutoff
f
OC
Output Resistance
R
Single ended to V
42.5
57.5
0.8
OUT
CC
≤ 2.5GHz
Single-Ended Output Return
Loss
dB
dB
V
2.5GHz to 4.0GHz
4.0GHz
Differential Input Return Loss
OUTPOL Input Limits
LOS Hysteresis
10
V
IL
V
2.4
2
IH
(Notes 3, 4, 8)
3.3
1
dB
µs
C
C
= open (Notes 3, 9, 10)
= 0.01µF (Notes 3, 9, 10)
CLOS
CLOS
LOS Assert/Deassert Time
2.3
4.5
50
100
12.7
22.4
Low LOS Assert Level
R
R
R
R
R
= 20kΩ (Notes 3, 10)
= 20kΩ (Notes 3, 10)
= 1kΩ (Notes 3, 10)
= 1kΩ (Notes 3, 10)
= 80Ω (Notes 3, 10)
6.5
9.5
12.9
17.4
48
mV
mV
mV
mV
mV
TH
TH
TH
TH
TH
P-P
P-P
P-P
P-P
P-P
Low LOS Deassert Level
Medium LOS Assert Level
Medium LOS Deassert Level
High LOS Assert Level
7.8
24.3
2
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