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MAX1481

Description
LINE TRANSCEIVER, PDSO10
Categorysemiconductor    Analog mixed-signal IC   
File Size182KB,16 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Parametric Compare View All

MAX1481 Overview

LINE TRANSCEIVER, PDSO10

MAX1481 Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals10
Maximum operating temperature85 Cel
Minimum operating temperature-40 Cel
Maximum supply voltage 15.25 V
Minimum supply voltage 14.75 V
Rated supply voltage 15 V
Processing package descriptionMICRO MAX-10
stateACTIVE
packaging shapeSQUARE
Package SizeSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
surface mountYes
Terminal formGULL WING
Terminal spacing0.5000 mm
terminal coatingtin lead
Terminal locationpair
Packaging MaterialsPlastic/Epoxy
Temperature levelINDUSTRIAL
Max TPHL driver60 ns
Interface Typeline transceiver
Interface standardsEIA-422; EIA-485
Max TPHL receiver150 ns
Differential outputYes
Number of drive digits1
Input propertiesDifferential SCHMITT flip-flop
Number of receiver bits1
19-1312; Rev 0; 10/97
Software-Selectable, Half-/Full-Duplex, Slew-Rate-Limited,
12Mbps, RS-485/RS-422 Transceivers in µMAX Package
_______________General Description
The MAX1481/MAX1484/MAX1485/MAX1486 provide
software-selectable, half-/full-duplex, low-power, slew-
rate-limited, and high-speed (12Mbps) RS-485/RS-422
operation in a 10-pin µMAX package—the smallest
10-pin package available.
The software-selectable, half-/full-duplex MAX1485/
MAX1486 make obsolete the normally larger and more
expensive solutions required for selectable half-/full-
duplex RS-485/RS-422 operation: 1) a 14-pin, full-
duplex transceiver configured via jumpers between
receiver and transmitter lines, or 2) two 8-pin, half-
duplex transceivers, which require an additional invert-
er logic gate for software selectability.
The MAX1481/MAX1484 are functionally equivalent to
the industry-standard MAX491 and 75180, and are
designed for space-constrained, full-duplex RS-422
applications.
All parts contain one driver and one receiver and fea-
ture a 1/8-unit-load receiver input impedance, allowing
up to 256 transceivers on the bus. The MAX1481/
MAX1485 feature reduced-slew-rate drivers that mini-
mize EMI and reduce reflections caused by improperly
terminated cables, allowing error-free data transmission
up to 250kbps. The MAX1484/MAX1486 driver slew
rates are not limited, allowing them to transmit up to
12Mbps.
The MAX1481/MAX1484/MAX1485/MAX1486 draw only
300µA of supply current. The MAX1481 has a low-power
shutdown mode that reduces supply current to only
0.1µA. All devices operate from a single 5V supply.
Drivers are output short-circuit current limited and are
protected 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 the
input is open circuit.
____________________________Features
o
10-Pin µMAX Package: Smallest 10-Pin Package
o
Software-Selectable Half-/Full-Duplex Operation
(MAX1485/MAX1486)
o
0.1µA Low-Current Shutdown Mode (MAX1481)
o
Slew-Rate Limiting Allows Error-Free Data
Transmission (MAX1481/MAX1485)
o
12Mbps High-Speed Operation
(MAX1484/MAX1486)
o
Allow up to 256 Transceivers on the Bus
MAX1481/MAX1484/MAX1485/MAX1486
______________Ordering Information
PART
MAX1481CUB
MAX1481EUB
MAX1484CUB
MAX1484EUB
MAX1485CUB
MAX1485EUB
MAX1486CUB
MAX1486EUB
TEMP. RANGE
0°C to +70°C
-40°C to +85°C
0°C to +70°C
-40°C to +85°C
0°C to +70°C
-40°C to +85°C
0°C to +70°C
-40°C to +85°C
PIN-PACKAGE
10 µMAX
10 µMAX
10 µMAX
10 µMAX
10 µMAX
10 µMAX
10 µMAX
10 µMAX
________________________Applications
Low-Power RS-422/RS-485 Communications
Level Translators
Hand-Held Equipment
Battery-Powered Equipment
Transceiver for EMI-Sensitive Applications
Industrial-Control Local Area Networks
______________________________________________________________Selection Table
Part
MAX1481
MAX1484
MAX1485
MAX1486
Half/Full
Duplex
Full
Full
Selectable
Selectable
Data
Rate
(Mbps)
0.250
12
0.250
12
Slew-
Rate
Limited
Yes
No
Yes
No
Low-
Power
Shutdown
Yes
No
No
No
Driver
Enable
Yes
Yes
Yes
Yes
Receiver
Enable
Yes
Yes
No
No
Quiescent
Current
(µA)
300
300
300
300
Transceivers
on Bus
256
256
256
256
Pin-
Package
10 µMAX
10 µMAX
10 µMAX
10 µMAX
1
________________________________________________________________
Maxim Integrated Products
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.

MAX1481 Related Products

MAX1481 MAX1481-MAX1486
Description LINE TRANSCEIVER, PDSO10 LINE TRANSCEIVER, PDSO10
Number of functions 1 1
Number of terminals 10 10
Maximum operating temperature 85 Cel 85 Cel
Minimum operating temperature -40 Cel -40 Cel
Maximum supply voltage 1 5.25 V 5.25 V
Minimum supply voltage 1 4.75 V 4.75 V
Rated supply voltage 1 5 V 5 V
Processing package description MICRO MAX-10 MICRO MAX-10
state ACTIVE ACTIVE
packaging shape SQUARE SQUARE
Package Size SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
surface mount Yes Yes
Terminal form GULL WING GULL WING
Terminal spacing 0.5000 mm 0.5000 mm
terminal coating tin lead tin lead
Terminal location pair pair
Packaging Materials Plastic/Epoxy Plastic/Epoxy
Temperature level INDUSTRIAL INDUSTRIAL
Max TPHL driver 60 ns 60 ns
Interface Type line transceiver line transceiver
Interface standards EIA-422; EIA-485 EIA-422; EIA-485
Max TPHL receiver 150 ns 150 ns
Differential output Yes Yes
Number of drive digits 1 1
Input properties Differential SCHMITT flip-flop Differential SCHMITT flip-flop
Number of receiver bits 1 1
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