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Datasheet> All Categories > Analog mixed-signal IC> Drivers and interfaces> MAX3291ESD+T
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MAX3291ESD+T

Description
RS-422/RS-485 interface IC for long-distance communication
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size284KB，16 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
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MAX3291ESD+T Overview

RS-422/RS-485 interface IC for long-distance communication

MAX3291ESD+T Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMaxim
Parts packaging codeSOIC
package instructionSOP, SOP14,.25
Contacts14
Reach Compliance Codecompli
ECCN codeEAR99
Factory Lead Time6 weeks

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19-1405; Rev 1; 4/99
RS-485/RS-422 Transceivers with Preemphasis
for High-Speed, Long-Distance Communication
________________General Description
The MAX3291/MAX3292 high-speed RS-485/RS-422
transceivers feature driver preemphasis circuitry, which
extends the distance and increases the data rate of reli-
able communication by reducing intersymbol interfer-
ence (ISI) caused by long cables. The MAX3291 is
programmable for data rates of 5Mbps to 10Mbps,
while the MAX3292 is programmable for data rates up
to 10Mbps by using a single external resistor.
The MAX3291/MAX3292 are full-duplex devices that
operate from a single +5V supply and offer a low-cur-
rent shutdown mode that reduces supply current to
100nA. They feature driver output short-circuit current
limiting and a fail-safe receiver input that guarantees a
logic-high output if the input is open circuit. A 1/4-unit-
load receiver input impedance allows up to 128 trans-
ceivers on the bus.
____________________________Features
o
Preemphasis Increases the Distance and Data
Rate of Reliable RS-485/RS-422 Communication
o
Data Rate
Optimized for 5Mbps to 10Mbps (MAX3291)
Programmable up to 10Mbps (MAX3292)
o
100nA Low-Current Shutdown Mode
o
Allow Up to 128 Transceivers on the Bus
o
-7V to +12V Common-Mode Input Voltage Range
o
Pin-Compatible with ’75180, MAX489, MAX491
MAX3080, MAX3083, MAX3086, MAX1482
MAX3291/MAX3292
_______________Ordering Information
PART
MAX3291CSD
TEMP. RANGE
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
14 SO
14 Plastic DIP
14 SO
14 Plastic DIP
14 SO
14 Plastic DIP
14 SO
14 Plastic DIP
________________________Applications
Long-Distance, High-Speed RS-485/RS-422
Communications
Telecommunications
Industrial-Control Local Area Networks
MAX3291CPD
MAX3291ESD
MAX3291EPD
MAX3292CSD
MAX3292CPD
MAX3292ESD
MAX3292EPD
Typical Operating Circuit and Functional Diagram
R
PSET
*
R
PSET
*
1µF
PEE
(PSET)
C
PSET
*
V
CC
14
1
(V
CCD
)
RO
RE
DE
DI
2
3
4
5
Z 10
Y 9
R = Z
O
R = Z
O
11
12
B
A
13
R = Z
O
R = Z
O
9
10
Y
Z
A 12
B 11
PEE
(PSET)
C
PSET
*
V
CC
14
1
(V
CCD
)
1µF
13
5
DI
4 DE
3
RE
2
RO
( ) ARE FOR MAX3292
* MAX3292 ONLY
Z
O
= THE CHARACTERISTIC
IMPEDANCE OF THE CABLE
MAX3291
MAX3292
7(6)
GND
MAX3291
MAX3292
7(6)
GND
Pin Configuration appears at end of data sheet.
________________________________________________________________
Maxim Integrated Products
1
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.

MAX3291ESD+T Related Products

MAX3291ESD+T MAX4583EEE+ MAX3292ESD+ MAX3291ESD+ MAX3291CSD+ MAX3292CSD+ MAX3292EPD+ MAX3292CSD+T MAX3291EPD+ MAX3292ESD+T
Description RS-422/RS-485 interface IC for long-distance communication analog switch ics 3ch spdt low V analog switch RS-422/RS-485 interface IC for long-distance communication RS-422/RS-485 interface IC for long-distance communication RS-422/RS-485 interface IC for long-distance communication RS-422/RS-485 interface IC for long-distance communication RS-422/RS-485 interface IC for long-distance communication RS-422/RS-485 interface IC for long-distance communication RS-422/RS-485 interface IC for long-distance communication RS-422/RS-485 interface IC for long-distance communication
Is it lead-free? Lead free Lead free Lead free Lead free Lead free Lead free Lead free Lead free Lead free Lead free
Is it Rohs certified? conform to conform to conform to conform to conform to conform to conform to conform to conform to conform to
Parts packaging code SOIC SOIC SOIC SOIC SOIC SOIC DIP SOIC DIP SOIC
package instruction SOP, SOP14,.25 SSOP, SSOP16,.25 0.150 INCH, MS-012B, SOIC-14 SOP, SOP14,.25 0.150 INCH, MS-012B, SOIC-14 SOP, SOP14,.25 DIP, DIP14,.3 SOP, DIP, SOP,
Contacts 14 16 14 14 14 14 14 14 14 14
Reach Compliance Code compli compli compliant compli compliant compli compli compli compli compliant
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Factory Lead Time 6 weeks 6 weeks 6 weeks 6 weeks 6 weeks 6 weeks 1 week 6 weeks 1 week 6 weeks
Maker Maxim - Maxim - Maxim Maxim Maxim Maxim Maxim Maxim
JESD-30 code - R-PDSO-G16 R-PDSO-G14 R-PDSO-G14 R-PDSO-G14 R-PDSO-G14 R-PDIP-T14 R-PDSO-G14 R-PDIP-T14 R-PDSO-G14
JESD-609 code - e3 e3 e3 e3 e3 e3 e3 e3 e3
length - 4.89 mm 8.65 mm 8.65 mm 8.65 mm 8.65 mm 19.05 mm 8.65 mm 19.05 mm 8.65 mm
Humidity sensitivity level - 1 1 1 1 1 1 1 1 1
Number of functions - 3 1 1 1 1 1 1 1 1
Number of terminals - 16 14 14 14 14 14 14 14 14
Maximum operating temperature - 85 °C 85 °C 85 °C 70 °C 70 °C 85 °C 70 °C 85 °C 85 °C
Minimum operating temperature - -40 °C -40 °C -40 °C - - -40 °C - -40 °C -40 °C
Package body material - PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code - SSOP SOP SOP SOP SOP DIP SOP DIP SOP
Encapsulate equivalent code - SSOP16,.25 SOP14,.25 SOP14,.25 SOP14,.25 SOP14,.25 DIP14,.3 - - -
Package shape - RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form - SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE IN-LINE SMALL OUTLINE IN-LINE SMALL OUTLINE
Peak Reflow Temperature (Celsius) - 260 260 260 260 260 260 260 260 260
power supply - 3/5/+-5 V 5 V 5 V 5 V 5 V 5 V - - -
Certification status - Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height - 1.73 mm 1.75 mm 1.75 mm 1.75 mm 1.75 mm 4.572 mm 1.75 mm 4.572 mm 1.75 mm
surface mount - YES YES YES YES YES NO YES NO YES
Temperature level - INDUSTRIAL INDUSTRIAL INDUSTRIAL COMMERCIAL COMMERCIAL INDUSTRIAL COMMERCIAL INDUSTRIAL INDUSTRIAL
Terminal surface - Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) TIN TIN Tin (Sn)
Terminal form - GULL WING GULL WING GULL WING GULL WING GULL WING THROUGH-HOLE GULL WING THROUGH-HOLE GULL WING
Terminal pitch - 0.635 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 2.54 mm 1.27 mm 2.54 mm 1.27 mm
Terminal location - DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature - 30 30 30 30 30 30 30 NOT SPECIFIED 30
width - 3.9 mm 3.9 mm 3.9 mm 3.9 mm 3.9 mm 7.62 mm 3.9 mm 7.62 mm 3.9 mm
Differential output - - YES YES YES YES YES YES YES YES
Number of drives - - 1 1 1 1 1 1 1 1
Input properties - - DIFFERENTIAL SCHMITT TRIGGER DIFFERENTIAL SCHMITT TRIGGER DIFFERENTIAL SCHMITT TRIGGER DIFFERENTIAL SCHMITT TRIGGER DIFFERENTIAL SCHMITT TRIGGER DIFFERENTIAL SCHMITT TRIGGER DIFFERENTIAL SCHMITT TRIGGER DIFFERENTIAL SCHMITT TRIGGER
Interface integrated circuit type - - LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER
Interface standards - - EIA-422; EIA-485 EIA-422; EIA-485 EIA-422; EIA-485 EIA-422; EIA-485 EIA-422; EIA-485 EIA-422; EIA-485 EIA-422; EIA-485 EIA-422; EIA-485
Maximum receive delay - - 85 ns 85 ns 85 ns 85 ns 85 ns 85 ns 85 ns 85 ns
Number of receiver bits - - 1 1 1 1 1 1 1 1
Maximum supply voltage - - 5.25 V 5.25 V 5.25 V 5.25 V 5.25 V 5.25 V 5.25 V 5.25 V
Minimum supply voltage - - 4.75 V 4.75 V 4.75 V 4.75 V 4.75 V 4.75 V 4.75 V 4.75 V
Nominal supply voltage - - 5 V 5 V 5 V 5 V 5 V 5 V 5 V 5 V
maximum transmission delay - - 65 ns 65 ns 65 ns 65 ns 65 ns 65 ns 65 ns 65 ns

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