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MAX3408EUK+T

P1-P3P4-P6
General Description
The MAX3406/MAX3407/MAX3408 are general-purpose
line-terminating networks designed to change the termi-
nation value of a line, depending on the state of a digi-
tal control line, allowing the connection to a coaxial
cable or a twisted pair wire. These devices are switch-
able between 75Ω , 100Ω, and 120Ω. The MAX3406
can switch from 75Ω to 100Ω, the MAX3407 can switch
from 75Ω to 120Ω, and the MAX3408 can switch from
100Ω to 120Ω termination. Termination resistance val-
ues are guaranteed to ±2.5% through -40°C to +85°C
and for signal levels of ±3.6V.
The MAX3406/MAX3407/MAX3408 consume only 50µA
supply current and are fully specified for operation from
a +4.5V to +5.5V power supply. These devices are avail-
able in a tiny 5-pin SOT23 package. All specifications
are guaranteed over the extended temperature range of
-40°C to +85°C.
Applications
Telecom E1/T1/J1 Coax/Twisted Pair Termination
Data Routers
Telecom Racks
Video Security
Industrial Networks
Ethernet Networks
Features
♦ Available in 5-Pin SOT Package
♦ ±2.5% Resistance Accuracy Over Extended
Temperature Range
♦ -3.6V to +3.6V Input Voltage Range
♦ 50µA Supply Current (max)
♦ Bipolar Input Range Off a Single Supply
♦ Switchable Termination
75Ω or 100Ω (MAX3406)
75Ω or 120Ω (MAX3407)
100Ω or 120Ω (MAX3408)
MAX3406/MAX3407/MAX3408
75Ω/100Ω/120Ω Switchable Termination
Networks
________________________________________________________________ Maxim Integrated Products 1
GND
BENABLE
15AV
CC
MAX3406
MAX3407
MAX3408
SOT23-5
TOP VIEW
2
34
Pin Configuration
Ordering Information
19-2141; Rev 0; 8/01
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
PA RT
TEMP.
RANGE
PIN-
PA CKA GE
TOP
MARK
MAX3406EUK
-40°C to +85°C
5 SOT23-5 ADSV
MAX3407EUK
-40°C to +85°C
5 SOT23-5 ADSW
MAX3408EUK
-40°C to +85°C
5 SOT23-5 ADSX
Selector Guide
TERMINATION
PA RT
ENABLE = 1 ENABLE = 0
MAX3406EUK
75Ω 100Ω
MAX3407EUK
75Ω 120Ω
MAX3408EUK
100Ω 120Ω
MAX3406/MAX3407/MAX3408
75Ω/100Ω/120Ω Switchable Termination
Networks
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= +4.5V to +5.5V, T
A
=T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V, T
A
= +25°C.) (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.
Note 1: All parameters tested at +25°C. Limits through temperature are guaranteed by design.
V
CC
...........................................................................-0.3V to +6V
ENABLE......................................................-0.3V to (V
CC
+ 0.3V)
A, B (applied individually) ...........................................-4V to +4V
Differential Voltage Across A-B ...................................-4V to +4V
Continuous Power Dissipation (T
A
= +70°C)
5-Pin SOT23 (derate 7.1mW/°C above +70°C)..........571mW
Operating Temperature Range ...........................-40°C to +85°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DC CHARACTERISTICS
Supply Range V
CC
4.5 5.5 V
Supply Current I
CC
V
CC
= +5.5V,
ENABLE = 0 or V
CC
30 50 µA
TERMINATOR NETWORK
MAX3406 97.5 100 102.5
-3.6V < V
AB
< ,+3.6V,
ENABLE = 0
MAX3407/
MAX3408
117 120 123
MAX3406 100
-3.6V < V
AB
< +3.6V,
ENABLE = 0,
frequency up to 36MHz
MAX3407/
MAX3408
120
MAX3406/
MAX3407
73.1 75 76.9
-3.6V < V
AB
< +3.6V,
ENABLE = 1
MAX3408 97.5 100 102.5
MAX3406/
MAX3407
75
On-Resistance R
ON
-3.6V < V
AB
< +3.6V,
ENABLE = 1, frequency
up to 36MHz
MAX3408 100
Ω
Turn-On Time t
ON
50 µs
Turn-Off Time t
OFF
50 µs
Input Low Voltage V
IL
0.8 V
Input High Voltage V
IH
2.0 V
Input Current I
IL
, I
IH
ENABLE = 0 or V
CC
-1 1 µA
Input Hysteresis V
HYST
200 mV
(All voltages referenced to GND unless otherwise noted.)
MAX3406/MAX3407/MAX3408
75Ω/100Ω/120Ω Switchable Termination
Networks
_______________________________________________________________________________________ 3
60
70
90
80
100
110
-50 0-25 255075100
RESISTANCE vs. TEMPERATURE
(MAX3406)
MAX3406/7/8 toc01
TEMPERATURE (
°
C)
RESISTANCE (Ω)
ENABLE = 0
ENABLE = V
CC
60
80
70
100
90
110
130
120
-50 0-25 25 50 75 100
RESISTANCE vs. TEMPERATURE
(MAX3407)
MAX3406/7/8 toc02
TEMPERATURE (
°
C)
RESISTANCE (Ω)
ENABLE = 0
ENABLE = V
CC
90
95
105
100
115
110
120
130
125
-50 0-25 25 50 75 100
RESISTANCE vs. TEMPERATURE
(MAX3408)
MAX3406/7/8 toc03
TEMPERATURE (
°
C)
RESISTANCE (Ω)
ENABLE = 0
ENABLE = V
CC
60
80
70
100
90
110
120
-3.6 0 1.2-2.4 -1.2 2.4 3.6
RESISTANCE vs. INPUT VOLTAGE
(MAX3406)
MAX3406/7/8 toc04
V
AB
(V)
RESISTANCE (Ω)
ENABLE = 0
ENABLE = V
CC
V
B
= 0
60
80
70
110
100
90
120
130
-3.6 0 1.2-2.4 -1.2 2.4 3.6
RESISTANCE vs. INPUT VOLTAGE
(MAX3407)
MAX3406/7/8 toc05
V
AB
(V)
RESISTANCE (Ω)
ENABLE = 0
ENABLE = V
CC
V
B
= 0
90
105
100
95
115
110
125
120
130
-3.6 0 1.2-2.4 -1.2 2.4 3.6
RESISTANCE vs. INPUT VOLTAGE
(MAX3408)
MAX3406/7/8 toc06
V
AB
(V)
RESISTANCE (Ω)
ENABLE = 0
ENABLE = V
CC
V
B
= 0
0
30
15
60
45
75
90
0.01 10.1 10 100
IMPEDANCE vs. FREQUENCY
75Ω MODE—MAX3406/MAX3407
MAX3406/7/8 toc07
FREQUENCY (MHz)
MAGNITUDE (Ω)
-90
-30
-60
30
0
60
90
PHASE (DEGREES)
MAGNITUDE
PHASE
0
40
20
80
60
100
120
0.01 10.1 10 100
IMPEDANCE vs. FREQUENCY
100Ω MODE—MAX3406/MAX3408
MAX3406/7/8 toc08
FREQUENCY (MHz)
MAGNITUDE (Ω)
-90
-30
-60
30
0
60
90
PHASE (DEGREES)
MAGNITUDE
PHASE
20
60
40
100
80
120
140
0.01 10.1 10 100
IMPEDANCE vs. FREQUENCY
120Ω MODE—MAX3407/MAX3408
MAX3406/7/8 toc09
FREQUENCY (MHz)
MAGNITUDE (Ω)
-90
-30
-60
30
0
60
90
PHASE (DEGREES)
MAGNITUDE
PHASE
Typical Operating Characteristics
(V
CC
= +5V, T
A
= +25°C, unless otherwise noted.)
P1-P3P4-P6

MAX3408EUK+T

Mfr. #:
Buy MAX3408EUK+T
Manufacturer:
Maxim Integrated
Description:
Communication ICs - Various 75/100/120Ohm Swx Termination Network
Lifecycle:
New from this manufacturer.
Delivery:
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