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MAX3483E Datasheet(PDF) 1 Page - Maxim Integrated Products

Part No. MAX3483E
Description  3.3V-Powered, ±15kV ESD-Protected, 12Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX3483E Datasheet(HTML) 1 Page - Maxim Integrated Products

 
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General Description
Devices in the MAX3483E family (MAX3483E/MAX3485E/
MAX3486E/MAX3488E/MAX3490E/MAX3491E) are
±15kV ESD-protected, +3.3V, low-power transceivers for
RS-485 and RS-422 communications. Each device con-
tains one driver and one receiver. The MAX3483E and
MAX3488E feature slew-rate-limited drivers that minimize
EMI and reduce reflections caused by improperly termi-
nated cables, allowing error-free data transmission at
data rates up to 250kbps. The partially slew-rate-limited
MAX3486E transmits up to 2.5Mbps. The MAX3485E,
MAX3490E, and MAX3491E transmit at up to 12Mbps.
All devices feature enhanced electrostatic discharge
(ESD) protection. All transmitter outputs and receiver
inputs are protected to ±15kV using IEC 1000-4-2 Air-
Gap Discharge, ±8kV using IEC 1000-4-2 Contact
Discharge, and ±15kV using the Human Body Model.
Drivers are short-circuit current limited and are protect-
ed against excessive power dissipation by thermal
shutdown circuitry that places the driver outputs into a
high-impedance state. The receiver input has a fail-safe
feature that guarantees a logic-high output if both
inputs are open circuit.
The MAX3488E, MAX3490E, and MAX3491E feature
full-duplex communication, while the MAX3483E,
MAX3485E, and MAX3486E are designed for half-
duplex communication.
Applications
Telecommunications
Industrial-Control Local Area Networks
Transceivers for EMI-Sensitive Applications
Integrated Services Digital Networks
Packet Switching
Features
o ESD Protection for RS-485 I/O Pins
±15kV—Human Body Model
±8kV—IEC 1000-4-2, Contact Discharge
±15kV—IEC 1000-4-2, Air-Gap Discharge
o Operate from a Single +3.3V Supply—
No Charge Pump Required
o Interoperable with +5V Logic
o Guaranteed 12Mbps Data Rate
(MAX3485E/MAX3490E/MAX3491E)
o Slew-Rate Limited for Errorless Data Transmission
(MAX3483E/MAX3488E)
o 2nA Low-Current Shutdown Mode
(MAX3483E/MAX3485E/MAX3486E/MAX3491E)
o -7V to +12V Common-Mode Input Voltage Range
o Full-Duplex and Half-Duplex Versions Available
o Industry-Standard 75176 Pinout
(MAX3483E/MAX3485E/MAX3486E)
o Current-Limiting and Thermal Shutdown for
Driver Overload Protection
3.3V-Powered, ±15kV ESD-Protected, 12Mbps and
Slew-Rate-Limited True RS-485/RS-422 Transceivers
________________________________________________________________
Maxim Integrated Products
1
19-1474; Rev 0; 4/99
PART
MAX3483ECSA
MAX3483ECPA
0°C to +70°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
8 SO
8 Plastic DIP
PART
NUMBER
GUARANTEED
DATA RATE
(Mbps)
SUPPLY
VOLTAGE
(V)
HALF/FULL
DUPLEX
SLEW-RATE
LIMITED
DRIVER/
RECEIVER
ENABLE
SHUTDOWN
CURRENT
(nA)
PIN
COUNT
MAX3483E
0.25
Half
Yes
Yes
2
8
MAX3485E
12
Half
No
Yes
2
8
MAX3486E
2.5
Half
Yes
Yes
2
8
MAX3488E
0.25
Full
Yes
No
8
MAX3490E
12
Full
No
No
8
MAX3491E
12
3.0 to 3.6
Full
No
Yes
2
14
Selector Guide
MAX3483EESA
MAX3483EEPA
-40°C to +85°C
-40°C to +85°C
8 SO
8 Plastic DIP
MAX3485ECSA
MAX3485ECPA
0°C to +70°C
0°C to +70°C
8 SO
8 Plastic DIP
MAX3485EESA
MAX3485EEPA
-40°C to +85°C
-40°C to +85°C
8 SO
8 Plastic DIP
Ordering Information
Ordering Information continued at end of data sheet.
±15kV
ESD
PROTECTION
Yes
Yes
Yes
Yes
Yes
Yes
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.


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