MAX3272/MAX3272A
+3.3V, 2.5Gbps Low-Power
Limiting Amplifiers
2
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ELECTRICAL CHARACTERISTICS
(VCC = +3.0V to +3.6V, TA = -40°C to +85°C. Typical values are at VCC = +3.3V and TA = +25°C, unless otherwise noted.) (Note 1)
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.
Power-Supply Voltage (VCC) .................................-0.5V to +6.0V
Voltage at IN+, IN- ..........................(VCC - 2.4V) to (VCC + 0.5V)
Voltage at SQUELCH, CAZ1, CAZ2,
TH, CLOS ...............................................-0.5V to (VCC + 0.5V)
Voltage at LOS, LOS (MAX3272)...........................-0.5V to +6.0V
Voltage at LOS, LOS (MAX3272A) .............-0.5V to (VCC + 0.5V)
Voltage at LEVEL...................................................-0.5V to +2.0V
Voltage at OUTPOL ...............................................-0.5V to +6.0V
Current into LOS, LOS ..........................................-1mA to +9mA
Differential Input Voltage (IN+ - IN-).................................2.5VP-P
Continuous Current at IN+, IN- ...........................................50mA
Continuous Current at
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
Range (TSTG) .................................................-55°C to +150°C
Operating Junction Temperature
Range (TJ) .....................................................-55°C to +150°C
Die Attach Temperature...................................................+400°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Current
ICC
(Note 2)
33
44
mA
Input Data Rate
2.5
Gbps
Input Voltage Range
VIN
Differential
15
1200
mVP-P
Output Deterministic Jitter
(Notes 3, 4, 5)
5
27
psP-P
Random Jitter
(Notes 4, 6)
3
psRMS
15mVP-P < VIN
≤ 30mVP-P
90
130
Data Output Edge Speed
(20% to 80%)
(Notes 3, 4)
30mVP-P
≤ VIN ≤ 1200mVP-P
90
115
ps
Differential Input Resistance
RIN
IN+ to IN-
95
100
105
Input-Referred Noise
220
VRMS
CML Output Voltage
VOUT
LEVEL open, RLOAD = 50
550
750
1200
mVP-P
Output Signal when Squelched
Outputs AC-coupled
2.2
mVP-P
Power-Supply Noise Rejection
PSNR
f
≤ 2MHz (Note 7)
30
dB
CAZ = open
0.9
MHz
Low Frequency Cutoff
fOC
CAZ = 0.1F
1.5
kHz
Output Resistance
ROUT
Single ended to VCC
42.5
50
57.5
≤ 2.5GHz
10
Single-Ended Output Return
Loss
2.5GHz to 4.0GHz
9
dB
Differential Input Return Loss
4.0GHz
10
dB
VIL
0.8
OUTPOL Input Limits
VIH
2.4
V
LOS Hysteresis
(Notes 3, 4, 8)
2
3.3
dB
CCLOS = open (Notes 3, 9, 10)
1
LOS Assert/Deassert Time
CCLOS = 0.01F (Notes 3, 9, 10)
2.3
50
100
s
Low LOS Assert Level
RTH = 20k
(Notes 3, 10)
4.5
6.5
mVP-P
Low LOS Deassert Level
RTH = 20k
(Notes 3, 10)
9.5
12.7
mVP-P
Medium LOS Assert Level
RTH = 1k
(Notes 3, 10)
7.8
12.9
mVP-P
Medium LOS Deassert Level
RTH = 1k
(Notes 3, 10)
17.4
22.4
mVP-P
High LOS Assert Level
RTH = 80
(Notes 3, 10)
24.3
48
mVP-P
ABSOLUTE MAXIMUM RATINGS