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MAX3082ECPA

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
Selector Guide
*
Pin compatible with 75180, with additional features implemented using pins 1, 6, 8, and 13.
MAX3080E–MAX3089E
±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps),
Slew-Rate-Limited RS-485/RS-422 Transceivers
________________________________________________________________
Maxim Integrated Products
1
19-1800; Rev 1; 5/06
Ordering Information continued at end of data sheet.
Ordering Information
General Description
The MAX3080E–MAX3089E are ±15kV electrostatic dis-
charge (ESD)-protected, high-speed transceivers for RS-
485/RS-422 communication that contain one driver and
one receiver. These devices feature fail-safe circuitry,
which guarantees a logic-high receiver output when the
receiver inputs are open or shorted. This means that the
receiver output will be a logic high if all transmitters on a
terminated bus are disabled (high impedance). The
MAX3080E/MAX3081E/MAX3082E feature reduced
slew-rate drivers that minimize EMI and reduce reflec-
tions caused by improperly terminated cables, allowing
error-free data transmission up to 115kbps. The
MAX3083E/MAX3084E/MAX3085E offer higher driver
output slew-rate limits, allowing transmit speeds up to
500kbps. The MAX3086E/MAX3087E/ MAX3088Es’ dri-
ver slew rates are not limited, making transmit speeds
up to 10Mbps possible. The MAX3089E’s slew rate is
selectable between 115kbps, 500kbps, and 10Mbps by
driving a selector pin with a single three-state driver. All
devices feature enhanced ESD protection. All transmitter
outputs and receiver inputs are protected to ±15kV
using the Human Body Model.
These transceivers typically draw 375µA of supply
current when unloaded, or when fully loaded with the dri-
vers disabled.
All devices have a 1/8-unit-load receiver input impedance
that allows up to 256 transceivers on the bus. The
MAX3082E/MAX3085E/MAX3088E are intended for half-
duplex communications, while the MAX3080E/MAX3081E/
MAX3083E/MAX3084E/MAX3086E/MAX3087E are
intended for full-duplex communications. The MAX3089E
is selectable between half-duplex and full-duplex opera-
tion. It also features independently programmable
receiver and transmitter output phase via separate pins.
Features
♦♦
ESD Protection for RS-485 I/O Pins
±15kV, Human Body Model
♦♦
True Fail-Safe Receiver While Maintaining
EIA/TIA-485 Compatibility
♦♦
Enhanced Slew-Rate Limiting Facilitates
Error-Free Data Transmission
(MAX3080E–MAX3085E/MAX3089E)
♦♦
1nA Low-Current Shutdown Mode (Except
MAX3081E/MAX3084E/MAX3087E)
♦♦
Pin-Selectable Full/Half-Duplex Operation
(MAX3089E)
♦♦
Phase Controls to Correct for Twisted-Pair
Reversal (MAX3089E)
♦♦
Allow Up to 256 Transceivers on the Bus
Applications
RS-422/RS-485 Communications
Level Translators
Transceivers for EMI-Sensitive Applications
Industrial-Control Local Area Networks
PART TEMP. RANGE PIN-PACKAGE
MAX3080ECSD
0°C to +70°C 14 SO
MAX3080ECPD 0°C to +70°C 14 Plastic DIP
MAX3080EESD -40°C to +85°C 14 SO
MAX3080EEPD -40°C to +85°C 14 Plastic DIP
Part
Half/Full
Duplex
Data
Rate
(Mbps)
Slew-
Rate
Limited
Low-
Power
Shutdown
Receiver/
Driver
Enable
Quiescent
Current
(µA)
Transceivers
On
Bus
Pin
Count
Industry-
Standard
Pinout
7518014256375YesYesYes0.115
75179
75176
75180
75179
75176
75180
75179
75176
75180*14
8
8
14
8
8
14
8
8256
256
256
256
256
256
256
256
256375
375
375
375
375
375
375
375
375No
Yes
Yes
No
Yes
Yes
No
Yes
YesYes
Yes
No
Yes
Yes
No
Yes
Yes
NoYes
Yes
Yes
Yes
Yes
No
No
No
SelectableSelectable
10
10
10
0.5
0.5
0.5
0.115
0.115
Selectable
Half
Full
Full
Half
Full
Full
Half
Full
Full
MAX3080E
MAX3081E
MAX3082E
MAX3083E
MAX3084E
MAX3085E
MAX3086E
MAX3087E
MAX3088E
MAX3089E
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
MAX3080E–MAX3089E
±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps),
Slew-Rate-Limited RS-485/RS-422 Transceivers
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +5V ±5%, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V and 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.
Supply Voltage (V
CC
) ............................................................+7V
Control Input Voltage (RE, DE)...................-0.3V to (V
CC
+ 0.3V)
Special Input Voltage
(H/F, SRL, TXP, RXP)..............................-0.3V to (V
CC
+ 0.3V)
Driver Input Voltage (DI).............................-0.3V to (V
CC
+ 0.3V)
Driver Output Voltage (A, B, Y, Z)........................................±13V
Receiver Input Voltage (A, B) ..............................................±13V
Receiver Input Voltage, Full Duplex (A, B) ..........................±25V
Receiver Output Voltage (RO)....................-0.3V to (V
CC
+ 0.3V)
Continuous Power Dissipation
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ...727mW
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
14-Pin Plastic DIP (derate 10.0mW/°C above +70°C) ....800mW
14-Pin SO (derate 8.33mW/°C above +70°C)..............667mW
Operating Temperature Ranges
MAX308_EC_ _ ...................................................0°C to +70°C
MAX308_EE_ _ ................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Figure 5, R = 50Ω (RS-422)
DE = GND,
V
CC
= GND or 5.25V
DE = GND,
V
CC
= GND or 5.25V
H/F, TXP, RXP, internal pulldown
DE, DI, RE
SRL = V
CC
SRL
MAX3080E–MAX3085E, and MAX3089E with
SRL = V
CC
or unconnected
DE, DI, RE, H/F, TXP, RXP
Figure 5, R = 50Ω or R = 27Ω
Figure 5, R = 50Ω or R = 27Ω
Figure 5, R = 50Ω or R = 27Ω
SRL (Note 3)
DE, DI, RE, H/F, TXP, RXP
SRL
CONDITIONS
µA
125
I
O
Output Leakage (Y and Z)
Full Duplex
µA
125
I
IN4
Input Current (A and B)
µA
75
I
IN3
SRL Input Current
V0.8V
IL2
Input Low Voltage
V0.4V
CC
0.6V
CC
V
IM2
Input Middle Voltage
VV
CC
- 0.8V
IH2
Input High Voltage
V
2.0
V
OD2
Differential Driver Output
10 40I
IN2
µA
±2I
IN1
SRL Input Current
mV100V
HYS
DI Input Hysteresis
V0.8V
IL1
Input Low Voltage
V0.2ΔV
OD
Change-in-Magnitude of
Differential Output Voltage
(Note 2)
V3V
OC
Driver Common-Mode Output
Voltage
V0.2ΔV
OC
Change-in-Magnitude of
Common-Mode Voltage (Note 2)
V2.0V
IH1
Input High Voltage
UNITSMIN TYP MAXSYMBOLPARAMETER
Figure 5, R = 27Ω (RS-485) 1.5
SRL = GND (Note 3) -75
V
IN
= 12V
V
IN
= 12V
V
IN
= -7V -100
-75V
IN
= -7V
Figure 5 V5V
OD1
Differential Driver Output
(No Load)
mAV
OD1
Driver Short-Circuit Output
Current (Note 4)
DRIVER
-7V ≤ V
OUT
≤ V
CC
-250
0V ≤ V
OUT
≤ 12V
0V ≤ V
OUT
≤ V
CC
±25
250
MAX3080E–MAX3089E
±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps),
Slew-Rate-Limited RS-485/RS-422 Transceivers
_______________________________________________________________________________________ 3
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V ±5%, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V and T
A
= +25°C.) (Note 1)
Note 1: All currents into the device are positive; all currents out of the device are negative. All voltages are referred to device
ground unless otherwise noted.
Note 2: ΔV
OD
and ΔV
OC
are the changes in V
OD
and V
OC
, respectively, when the DI input changes state.
Note 3: The SRL pin is internally biased to V
CC
/ 2 by a 100kΩ/100kΩ resistor-divider. It is guaranteed to be V
CC
/ 2 if left
unconnected.
Note 4: Maximum current level applies to peak current just prior to foldback-current limiting; minimum current level applies during
current limiting.
375 600
430 900
DE = GND
DE = GND
475 1000
µA
420 800
DE = V
CC
DE = V
CC
No load,
RE = DI = GND
or V
CC
, SRL = GND
PARAMETER SYMBOL MIN TYP MAX UNITS
Receiver Output Low Voltage V
OL
0.4 V
Receiver Output High Voltage V
OH
V
CC
-1.5 V
Receiver Input Hysteresis ΔV
TH
25 mV
Receiver Differential Threshold
Voltage
V
TH
-200 -125 -50 mV
Three-State Output Current at
Receiver
I
OZR
±1 µA
Receiver Input Resistance R
IN
96 kΩ
Receiver Output Short-Circuit
Current
I
OSR
±7 ±95 mA
Supply Current I
CC
µA
Supply Current in Shutdown
Mode
I
SHDN
0.001 10 µA
CONDITIONS
No load,
RE = DI = GND
or V
CC
, SRL = V
CC
I
O
= 4mA, V
ID
= -200mV
DE = GND, V
RE
= V
CC
I
O
= -4mA, V
ID
= -50mV
-7V ≤ V
CM
≤ 12V
0.4V ≤ V
O
≤ 2.4V
-7V ≤ V
CM
≤ 12V
0V ≤ V
RO
≤ V
CC
ESD Protection for Y, Z, A, B ±15 kVHuman Body Model
RECEIVER
SUPPLY CURRENT
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

MAX3082ECPA

Mfr. #:
Buy MAX3082ECPA
Manufacturer:
Maxim Integrated
Description:
RS-422/RS-485 Interface IC 15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers
Lifecycle:
New from this manufacturer.
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