Instruction Manual

MAX3744/MAX3745
2.7Gbps SFP Transimpedance
Amplifiers with RSSI
_______________________________________________________________________________________ 5
Typical Operating Characteristics (continued)
(V
CC
= +3.3V, C
IN
= 0.85pF, T
A
= +25°C, unless otherwise noted.)
0
1.0
0.5
2.5
1.5
3.5
4.0
-40 20-20 40 60 100
BANDWIDTH vs. TEMPERATURE
MAX3744 toc14
TEMPERATURE (°C)
3dB BANDWIDTH (GHz)
3.0
2.0
080
C
IN
= 0.6pF
DIFFERENTIAL S22 vs. FREQUENCY
MAX3744 toc10
FREQUENCY (MHz)
S22 (dB)
350030002500200015001000500
-25
-20
-15
-10
-5
0
-30
0 4000
MAX3744
MAX3745
0
20
10
40
30
60
50
70
-40 0 20-20 40 60 80 100
SUPPLY CURRENT
vs. TEMPERATURE
MAX3744 toc11
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
-200
-150
-100
-50
0
50
100
150
200
-100 -50 0 50 100
DC TRANSFER FUNCTION
(V
FILT
= 0V)
MAX3744 toc12
INPUT CURRENT (mA
P-P
)
OUTPUT VOLTAGE (mV
P-P
)
150
200
250
300
350
400
450
500
550
0 500 1000 1500 2000
RSSI
MAX3744, MAX3748A
MAX3744 toc13
AVERAGE INPUT CURRENT (µA)
MAX3748 RSSI OUTPUT (µA)
T
A
= -40°C
T
A
= +85°C
60ps/div
EYE DIAGRAM
TEMPERATURE = +100°C INPUT = 20µA
P-P
DATA RATE = 2.7Gbps
6mV/div
MAX3744 toc15
2
23
-1 PRBS