MAX3747A/MAX3747B
155Mbps to 3.2Gbps, Low-Power SFP
Limiting Amplifiers
ABSOLUTE MAXIMUM RATINGS
Power-Supply Voltage (V ).................................-0.5V to +4.5V
Continuous Power Dissipation (T = +70°C)
A
CC
Voltage at IN+, IN- ..........................(V
- 2.4V) to (V
+ 0.5V)
+ 0.5V)
10-Pin µMAX (derate 6.9mW/°C above +70°C) ...........552mW
CC
CC
CC
Voltage at DISABLE, LOS, TH, V
..........-0.5V to (V
Operating Junction Temperature Range (T ) .......-55°C to +150°C
REF
J
Current into LOS ...................................................-1mA to +9mA
Current into V ..................................................................2mA
Storage Ambient Temperature Range (T )...........-55°C to +150°C
S
Lead Temperature (soldering, 10s)......................................+300°C
Soldering Temperature (reflow)............................................+260°C
REF
Differential Input Voltage (IN+ - IN-) .....................................2.5V
Continuous Current at CML Outputs
(OUT+, OUT-) ..............................................-25mA to +25mA
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
CC
unless otherwise specified.) (Note 1)
(V
= +2.97V to +3.63V, CML output load is 50Ω to V , T = -40°C to +85°C. Typical values are at V
= +3.3V and T = +25°C,
CC A
CC
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
POWER SUPPLY
MAX3747A including the CML output current
MAX3747B including the CML output current
36
38
41
43
MAX3747A excluding the CML output
current
Supply Current (Note 2)
I
mA
dB
CC
18
24
26
MAX3747B excluding the CML output
current
20
30
Power-Supply Noise Rejection
INPUT SPECIFICATION
Input Sensitivity
PSNR
f < 2MHz
V
(Note 3)
(Note 3)
4
mV
P-P
IN-MIN
Input Overload
V
1200
42
mV
P-P
IN-MAX
OUTPUT SPECIFICATION
Output Resistance
R
OUT
(Note 4)
50
15
58
Ω
Differential Output Return Loss
DUT is powered on, f < 3GHz
dB
MAX3747A/MAX3747B
CML Differential Output Voltage
600
800
1000
mV
mV
P-P
4mV
≤ V ≤ 1200mV
IN P-P
P-P
Differential Output Signal When
Disabled
AC-coupled outputs, V
input (Note 4)
applied to the
IN-MAX
15
P-P
Data-Output Transition Time
20% to 80% (Note 4)
70
120
ps
TRANSFER CHARACTERISTIC
K28.5 pattern at 3.2Gbps
23
13.2
14
19
25
17
150
5
PRBS 2 - 1 equivalent pattern at 2.7Gbps
(Note 6)
Deterministic Jitter (Notes 4, 5)
DJ
ps
P-P
K28.5 pattern at 2.1Gbps
12
23
PRBS 2 - 1 equivalent pattern at 155Mbps
85
(Note 6)
Random Jitter
V
= 4mV
(Notes 4, 7)
3.5
ps
RMS
IN
P-P
Maxim Integrated
2