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MAX3080 fiches techniques PDF

Maxim Integrated - Fail-Safe / High-Speed 10Mbps / Slew-Rate-Limited RS-485/RS-422 Transceivers

Numéro de référence MAX3080
Description Fail-Safe / High-Speed 10Mbps / Slew-Rate-Limited RS-485/RS-422 Transceivers
Fabricant Maxim Integrated 
Logo Maxim Integrated 





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MAX3080 fiche technique
EVALUATION KIT AVAILABLE
AVAILABLE
MAX3080–MAX3089
Fail-Safe, High-Speed (10Mbps),
Slew-Rate-Limited RS-485/RS-422 Transceivers
General Description
The MAX3080–MAX3089 high-speed transceivers for
RS-485/RS-422 communication 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 MAX3080/MAX3081/MAX3082 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
MAX3083/MAX3084/MAX3085 offer higher driver out-
put slew-rate limits, allowing transmit speeds up to
500kbps. The MAX3086/MAX3087/MAX3088’s driver
slew rates are not limited, making transmit speeds up
to 10Mbps possible. The MAX3089’s slew rate is
selectable between 115kbps, 500kbps, and 10Mbps
by driving a selector pin with a single three-state driver.
These transceivers typically draw 375µA of supply
current when unloaded, or when fully loaded with the
drivers disabled.
All devices have a 1/8-unit-load receiver input imped-
ance that allows up to 256 transceivers on the bus. The
MAX3082/MAX3085/MAX3088 are intended for half-
duplex communications, while the MAX3080/MAX3081/
MAX3083/MAX3084/MAX3086/MAX3087 are intended
for full-duplex communications. The MAX3089 is selec-
table between half-duplex and full-duplex operation. It
also features independently programmable receiver
and transmitter outputFpuhansecvtiiaosnepaalraDte ipaings.rams
Next Generation Device Features
For Fault-Tolerant Applications:
MAX3430: ±80V Fault-Protected, Fail-Safe, 1/4-
Unit Load, +3.3V RS-485 Transceiver
For Low-Voltage Applications:
MAX3362: +3.3V, High-Speed, RS-485/RS-422
Transceiver in a SOT23 Package
For Multiple Transceiver Applications:
MAX3030E–MAX3033E: ±15kV ESD-Protected,
+3.3V, Quad, RS-422 Transmitters
MAX3040–MAX3045: ±10kV ESD-Protected, Quad,
+5V, RS-485/RS-422 Transmitters
Applications
RS-422/RS-485 Communications
Level Translators
Transceivers for EMI-Sensitive Applications
Industrial-Control Local Area Networks
Ordering Information
PART
MAX3080CSD
MAX3080CPD
MAX3080ESD
MAX3080EPD
TEMP RANGE
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
Ordering Information continued at end of data sheet.
Selection Table
Part
Half/Full
Duplex
Data
Rate
(Mbps)
Slew
Rate
Limited
Low-
Power
Shutdown
Receiver/
Driver
Enable
Quiescent Transceivers
Current
On
(µA)
Bus
MAX3080
Full
0.115
Yes
Yes
Yes
375
MAX3081
Full
0.115
Yes
No
No
375
MAX3082
Half
0.115
Yes
Yes
Yes
375
MAX3083
Full
0.5
Yes Yes Yes 375
MAX3084
Full
0.5 Yes No
No
375
MAX3085
Half
0.5
Yes Yes Yes 375
MAX3086
Full
10
No Yes Yes 375
MAX3087
Full
10
No
No
No 375
MAX3088
Half
10
No Yes Yes 375
PiMn ACXon30fi8g9uratSioenlescatapbpleear aSteelencdtaobfldeataSsehleecetta.ble
Yes
Yes
375
*FPuinn-cctoiomnpaaltDibilaegwraithm7s5c1o80n,tiwniutheaddadtiteionndalofef adtautraessihmepelte.mented using pins 1, 6, 8, and 13.
UCSP is a trademark of Maxim Integrated Products, Inc.
256
256
256
256
256
256
256
256
256
256
Pin
Count
14
8
8
14
8
8
14
8
8
14
Industry-
Standard
Pinout
75180
75179
75176
75180
75179
75176
75180
75179
75176
75180*
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-1138; Rev 3; 12/05

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