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MAX1490E

Description
LINE TRANSCEIVER, PDIP28
Categorysemiconductor    Analog mixed-signal IC   
File Size1MB,19 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Parametric Compare View All

MAX1490E Overview

LINE TRANSCEIVER, PDIP28

MAX1490E Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals28
Maximum operating temperature70 Cel
Minimum operating temperature0.0 Cel
Maximum supply voltage 15.5 V
Minimum supply voltage 14.5 V
Rated supply voltage 15 V
Processing package descriptionPLASTIC, DIP-28
stateACTIVE
packaging shapeRECTANGULAR
Package SizeIN-LINE
Terminal formTHROUGH-HOLE
Terminal spacing2.54 mm
terminal coatingTIN LEAD
Terminal locationDUAL
Packaging MaterialsPLASTIC/EPOXY
Temperature levelCOMMERCIAL
Interface TypeLINE TRANSCEIVER
Interface standardsEIA-422; EIA-485
Differential outputYes
Number of drive digits1
Number of receiver bits1
19-1940; Rev 0; 4/01
±15kV ESD-Protected, Isolated RS-485/RS-422
Data Interfaces
_________________General Description
The MAX1480EA/MAX1480EC/MAX1490EA/MAX1490EB
are complete, electrically isolated, RS-485/RS-422 data
communications interface solutions in a hybrid microcir-
cuit. The RS-485/RS-422 I/O pins are protected against
±15kV electrostatic discharge (ESD) shocks, without
latchup. Transceivers, optocouplers, and a transformer
provide a complete interface in a standard DIP package.
A single +5V supply on the logic side powers both sides
of the interface.
The MAX1480EC/MAX1490EB feature reduced-slew-rate
drivers that minimize EMI and reduce reflections caused
by improperly terminated cables, allowing error-free data
transmission at data rates up to 160kbps. The
MAX1480EA/MAX1490EA driver slew rate is not limited,
allowing transmission rates up to 2.5Mbps. The
MAX1480EA/MAX1480EC are designed for half-duplex
communication, while the MAX1490EA/MAX1490EB fea-
ture full-duplex communication.
Drivers are short-circuit current limited and protected
against excessive power dissipation by thermal shut-
down circuitry that places the driver outputs into a high-
impedance state. The receiver input has a fail-safe
feature that guarantees a known output (RO low for the
MAX1480EA/MAX1480EC, RO high for the MAX1490EA/
MAX1490EB) if the input is open circuit.
The MAX1480EA/MAX1480EC/MAX1490EA/MAX1490EB
withstand 1260V
RMS
(1min) or 1520V
RMS
(1s). Their iso-
lated outputs meet all RS-485/RS-422 specifications. The
MAX1480EA/MAX1480EC are available in a 28-pin DIP
package, and the MAX1490EA/MAX1490EB are available
in a 24-pin DIP package.
.
____________________________Features
o
Isolated Data Interface, Guaranteed to 1260V
RMS
(1min)
o
±15kV ESD Protection on I/O Pins
o
Slew-Rate Limited for Errorless Data
Transmission (MAX1480EC/MAX1490EB)
o
High-Speed, Isolated, 2.5Mbps RS-485/RS-422
Interface (MAX1480EA/MAX1490EA)
o
Full-Duplex Data Communication
(MAX1490EA/MAX1490EB)
o
Single +5V Supply
o
Current Limiting and Thermal Shutdown for
Driver Overload Protection
o
Standard 0.6in DIP Packages
28-Pin DIP (MAX1480EA/MAX1480EC)
24-Pin DIP (MAX1490EA/MAX1490EB)
MAX1480E/MAX1490E
_______________Ordering Information
PART
MAX1480EACPI
MAX1480EAEPI
TEMP. RANGE
0°C to +70°C
-40°C to +85°C
PIN-PACKAGE
28 Wide Plastic DIP*
28 Wide Plastic DIP*
Ordering Information continued at end of data sheet.
Data rate for A parts is up to 2.5Mbps. Data rate for C parts is
up to 250kbps.
*See Reliability section at end of data sheet.
Pin Configurations
TOP VIEW
V
CC1
V
CC2
D1
D2
GND1
1
2
3
4
5
MAX845E
MAX488E
MAX490E
24 AC1
23 AC2
________________________Applications
Isolated RS-485/RS-422 Data Interface
Transceivers for EMI-Sensitive Applications
Industrial-Control Local Area Networks
Automatic Test Equipment
HVAC/Building Control Networks
Telecom
MAX1490EA/
MAX1490EB
22 ISO V
CC1
21 ISO RO DRV
20 A
19 B
18 Z
17 Y
16 ISO COM1
15 ISO DI DRV
14 ISO V
CC2
13 ISO RO LED
ISOLATION BARRIER
FS 6
SD
7
V
CC3
8
DI
9
V
CC4
10
RO 11
GND2 12
DIP
Selector Guide appears at end of data sheet.
Pin Configurations continued at end of data sheet.
1
________________________________________________________________
Maxim Integrated Products
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.

MAX1490E Related Products

MAX1490E MAX1480E MAX1480E-MAX1490E MAX1480E/MAX1490E
Description LINE TRANSCEIVER, PDIP28 LINE TRANSCEIVER, PDIP28 LINE TRANSCEIVER, PDIP28 LINE TRANSCEIVER, PDIP28
Number of functions 1 1 1 1
Number of terminals 28 28 28 28
Maximum operating temperature 70 Cel 70 Cel 70 Cel 70 Cel
Minimum operating temperature 0.0 Cel 0.0 Cel 0.0 Cel 0.0 Cel
Maximum supply voltage 1 5.5 V 5.5 V 5.5 V 5.5 V
Minimum supply voltage 1 4.5 V 4.5 V 4.5 V 4.5 V
Rated supply voltage 1 5 V 5 V 5 V 5 V
Processing package description PLASTIC, DIP-28 PLASTIC, DIP-28 PLASTIC, DIP-28 PLASTIC, DIP-28
state ACTIVE ACTIVE ACTIVE ACTIVE
packaging shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package Size IN-LINE IN-LINE IN-LINE IN-LINE
Terminal form THROUGH-HOLE THROUGH-HOLE THROUGH-HOLE THROUGH-HOLE
Terminal spacing 2.54 mm 2.54 mm 2.54 mm 2.54 mm
terminal coating TIN LEAD TIN LEAD TIN LEAD TIN LEAD
Terminal location DUAL DUAL DUAL DUAL
Packaging Materials PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
Temperature level COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL
Interface Type 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
Differential output Yes Yes Yes Yes
Number of drive digits 1 1 1 1
Number of receiver bits 1 1 1 1
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