MAX13085EASA+ Maxim Integrated Products, MAX13085EASA+ Datasheet

IC TXRX RS485/422 8-SOIC

MAX13085EASA+

Manufacturer Part Number
MAX13085EASA+
Description
IC TXRX RS485/422 8-SOIC
Manufacturer
Maxim Integrated Products
Type
Transceiverr
Datasheet
1.MAX13082ECSA.pdf (24 pages)

Specifications of MAX13085EASA+

Number Of Drivers/receivers
1/1
Protocol
RS422, RS485
Voltage - Supply
4.5 V ~ 5.5 V
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX13080E–MAX13089E +5.0V, ±15kV ESD-protect-
ed, RS-485/RS-422 transceivers feature one driver and
one receiver. These devices include fail-safe circuitry,
guaranteeing a logic-high receiver output when receiver
inputs are open or shorted. The receiver outputs a logic-
high if all transmitters on a terminated bus are disabled
(high impedance). The MAX13080E–MAX13089E include
a hot-swap capability to eliminate false transitions on the
bus during power-up or hot insertion.
The MAX13080E/MAX13081E/MAX13082E feature
reduced slew-rate drivers that minimize EMI and
reduce reflections caused by improperly terminated
cables, allowing error-free data transmission up to
250kbps. The MAX13083E/MAX13084E/MAX13085E
also feature slew-rate-limited drivers but allow transmit
speeds up to 500kbps. The MAX13086E/MAX13087E/
MAX13088E driver slew rates are not limited, making
transmit speeds up to 16Mbps possible. The
MAX13089E slew rate is pin selectable for 250kbps,
500kbps, and 16Mbps.
The MAX13082E/MAX13085E/MAX13088E are intended
for half-duplex communications, and the MAX13080E/
MAX13081E/MAX13083E/MAX13084E/MAX13086E/
MAX13087E are intended for full-duplex communica-
tions. The MAX13089E is selectable for half-duplex or
full-duplex operation. It also features independently
programmable receiver and transmitter output phase
through separate pins.
The MAX13080E–MAX13089E transceivers draw 1.2mA
of supply current when unloaded or when fully loaded
with the drivers disabled. All devices have a 1/8-unit
load receiver input impedance, allowing up to 256
transceivers on the bus.
The MAX13080E/MAX13083E/MAX13086E/MAX13089E
are available in 14-pin PDIP and 14-pin SO packages.
The MAX13081E/MAX13082E/MAX13084E/MAX13085E/
MAX13087E/MAX13088E are available in 8-pin PDIP and
8-pin SO packages. The devices operate over the com-
mercial, extended, and automotive temperature ranges.
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.
19-3590; Rev 1; 4/05
Utility Meters
Lighting Systems
Industrial Control
Telecom
Security Systems
Instrumentation
Profibus
________________________________________________________________ Maxim Integrated Products
Hot-Swap, RS-485/RS-422 Transceivers
+5.0V, ±15kV ESD-Protected, Fail-Safe,
General Description
Applications
♦ +5.0V Operation
♦ Extended ESD Protection for RS-485/RS-422 I/O Pins
♦ True Fail-Safe Receiver While Maintaining
♦ Hot-Swap Input Structures on DE and RE
♦ Enhanced Slew-Rate Limiting Facilitates Error-
♦ Low-Current Shutdown Mode (Except
♦ Pin-Selectable Full-/Half-Duplex Operation
♦ Phase Controls to Correct for Twisted-Pair
♦ Allow Up to 256 Transceivers on the Bus
♦ Available in Industry-Standard 8-Pin SO Package
Ordering Information continued at end of data sheet.
Selector Guide, Pin Configurations, and Typical Operating
Circuits appear at end of data sheet.
MAX13080ECPD
MAX13080ECSD
MAX13080EEPD
MAX13080EESD
MAX13080EAPD
MAX13080EASD
EIA/TIA-485 Compatibility
Free Data Transmission
(MAX13080E–MAX13085E/MAX13089E)
MAX13081E/MAX13084E/MAX13087E)
(MAX13089E)
Reversal (MAX13089E)
±15kV Human Body Model
PART
-40°C to +85°C
-40°C to +85°C
-40°C to +125°C
-40°C to +125°C
TEMP RANGE
0°C to +70°C
0°C to +70°C
Ordering Information
PIN-
PACKAGE
14 PDIP
14 SO
14 PDIP
14 SO
14 PDIP
14 SO
Features
PKG
CODE
P14-3
S14-2
P14-3
S14-2
P14-3
S14-2
1

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MAX13085EASA+ Summary of contents

Page 1

... Industrial Control Telecom Security Systems Instrumentation Profibus ________________________________________________________________ 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. ♦ +5.0V Operation ♦ Extended ESD Protection for RS-485/RS-422 I/O Pins ±15kV Human Body Model ♦ ...

Page 2

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers ABSOLUTE MAXIMUM RATINGS (All Voltages Referenced to GND) Supply Voltage (V ).............................................................+6V CC Control Input Voltage (RE, DE, SLR, H/F, TXP, RXP)......................................................-0.3V to +6V Driver Input Voltage (DI)...........................................-0.3V to +6V Driver Output Voltage ...

Page 3

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers DC ELECTRICAL CHARACTERISTICS (continued +5.0V ±10 MIN MAX PARAMETER SYMBOL Driver Short-Circuit Output Current Driver Short-Circuit Foldback Output Current Thermal-Shutdown Threshold Thermal-Shutdown Hysteresis Input ...

Page 4

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers DRIVER SWITCHING CHARACTERISTICS MAX13080E/MAX13081E/MAX13082E/MAX13089E WITH SRL = UNCONNECTED (250kbps +5.0V ±10 MIN MAX PARAMETER SYMBOL Driver Propagation Delay Driver Differential Output Rise or Fall ...

Page 5

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers DRIVER SWITCHING CHARACTERISTICS MAX13083E/MAX13084E/MAX13085E/MAX13089E WITH SRL = +5.0V ±10 MIN MAX PARAMETER SYMBOL Driver Propagation Delay Driver Differential Output Rise or Fall Time ...

Page 6

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers DRIVER SWITCHING CHARACTERISTICS MAX13086E/MAX13087E/MAX13088E/MAX13089E WITH SRL = GND (16Mbps +5.0V ±10 MIN MAX PARAMETER SYMBOL Driver Propagation Delay Driver Differential Output Rise or Fall ...

Page 7

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers (V = +5.0V +25°C, unless otherwise noted SUPPLY CURRENT vs. TEMPERATURE 1.60 NO LOAD 1.50 1.40 1. 1.00 0.90 0.80 ...

Page 8

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers (V = +5.0V +25°C, unless otherwise noted SHUTDOWN CURRENT vs. TEMPERATURE -40 -25 - ...

Page 9

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers (V = +5.0V +25°C, unless otherwise noted DRIVER PROPAGATION DELAY (500kbps) MAX13080E-89E toc18 R = 100Ω 2V/div V Y 5V/div 400ns/div ...

Page 10

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers GENERATOR DZH DZH(SHDN) OUT Figure 4. Driver Enable and Disable Times (t GENERATOR DZL DZL(SHDN OUT V OL Figure 5. Driver Enable and ...

Page 11

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers V ATE ID Figure 6. Receiver Propagation Delay Test Circuit +1.5V -1.5V S1 OPEN S2 CLOSED S3 = +1. OPEN S2 CLOSED S3 = +1. ...

Page 12

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers PIN MAX13080E MAX13081E MAX13082E MAX13083E MAX13084E MAX13085E MAX13086E MAX13087E MAX13088E HALF- FULL-DUPLEX DUPLEX DEVICES DEVICES — — — — — — — ...

Page 13

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers PIN MAX13080E MAX13081E MAX13082E MAX13083E MAX13084E MAX13085E MAX13086E MAX13087E MAX13088E HALF- FULL-DUPLEX DUPLEX DEVICES DEVICES 12 8 — — — — — — 6 — — — *MAX13089E only. In ...

Page 14

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers MAX13082E/MAX13085E/MAX13088E TRANSMITTING INPUTS MAX13089E RE TXP ...

Page 15

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Detailed Description The MAX13080E–MAX13089E high-speed transceivers for RS-485/RS-422 communication contain one driver and one receiver. These devices feature fail-safe circuit- ry, which guarantees a logic-high receiver output when the receiver inputs are open ...

Page 16

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers V CC 10µs TIMER TIMER 5kΩ DE 100µA 500µ Figure 9. Simplified Structure of the Driver Enable Pin (DE) MAX13089E Programming The MAX13089E has several programmable operating modes. Transmitter rise and ...

Page 17

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 1MΩ 1500Ω DISCHARGE CHARGE-CURRENT- RESISTANCE LIMIT RESISTOR HIGH STORAGE VOLTAGE 100pF CAPACITOR DC SOURCE Figure 10a. Human Body ESD Test Model I 100 90% ...

Page 18

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Low-Power Shutdown Mode (Except MAX13081E/MAX13084E/MAX13087E) Low-power shutdown mode is initiated by bringing both RE high and DE low. In shutdown, the devices typically draw only 2.8µA of supply current. RE and DE can ...

Page 19

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers A 120Ω 120Ω NOTE: RE AND DE ON MAX13080E/MAX13083E/MAX13086E/MAX13089E ONLY. Figure 13. Typical Full-Duplex RS-485 Network HALF/FULL DATA RATE PART DUPLEX (Mbps) MAX13080E Full ...

Page 20

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers N. N. GND N.C. GND 7 8 DIP/SO V ...

Page 21

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Pin Configurations and Typical Operating Circuits (continued) RO TOP VIEW H RXP RXP MAX13089E H ...

Page 22

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers PART TEMP RANGE MAX13081ECPA 0°C to +70°C MAX13081ECSA 0°C to +70°C MAX13081EEPA -40°C to +85°C MAX13081EESA -40°C to +85°C MAX13081EAPA -40°C to +125°C MAX13081EASA -40°C to +125°C MAX13082ECPA 0°C to +70°C MAX13082ECSA 0°C ...

Page 23

ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) ______________________________________________________________________________________ Package Information (continued) 23 ...

Page 24

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 24 © 2005 Maxim Integrated Products ...

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