Datasheet MAX 3082 ECPA Datasheet (FREI)

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Page 1

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

19-1800; Rev 1; 5/06

Ordering Information continued at end of data sheet.

Ordering Information

General Description

The MAX3080E–MAX3089E are ±15kV electrostatic discharge (ESD)-protected, high-speed transceivers for RS485/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 reflections 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’ driver 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 drivers 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 halfduplex 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 operation. 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

Bus

Count

IndustryStandard

Pinout

7518014256375YesYesYes0.115

75179

75176

75180

75179

75176

75180

75179

75176

75180*14

8256

256

256375

375

375No

Yes

YesYes

Yes

NoYes

Yes

SelectableSelectable

0.5

0.115

Selectable

Half

Full

Half

Full

Half

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.

Page 2

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

(VCC= +5V ±5%, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at VCC= +5V and TA= +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 (VCC) ............................................................+7V

Control Input Voltage (RE, DE)...................-0.3V to (V

+ 0.3V)

Special Input Voltage

(H/F, SRL, TXP, RXP)..............................-0.3V to (V

+ 0.3V)

Driver Input Voltage (DI).............................-0.3V to (V

+ 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

+ 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

= GND or 5.25V

DE = GND, VCC= GND or 5.25V

H/F, TXP, RXP, internal pulldown

DE, DI, RE

SRL = V

SRL

MAX3080E–MAX3085E, and MAX3089E with SRL = VCCor unconnected

DE, DI, RE, H/F, TXP, RXP

Figure 5, R = 50Ω or R = 27Ω

SRL (Note 3)

DE, DI, RE, H/F, TXP, RXP

SRL

CONDITIONS

µA

125

Output Leakage (Y and Z) Full Duplex

µA

125

IN4

Input Current (A and B)

µA

IN3

SRL Input Current

V0.8V

IL2

Input Low Voltage

V0.4V

0.6V

IM2

Input Middle Voltage

VVCC- 0.8V

IH2

Input High Voltage

2.0

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

Change-in-Magnitude of Differential Output Voltage (Note 2)

V3V

Driver Common-Mode Output Voltage

V0.2ΔV

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

VIN= 12V

VIN= -7V -100

-75VIN= -7V

Figure 5 V5V

OD1

Differential Driver Output (No Load)

mAV

OD1

Driver Short-Circuit Output Current (Note 4)

DRIVER

-7V ≤ V

OUT

≤ V

-250

0V ≤ V

OUT

≤ 12V

0V ≤ V

OUT

≤ V

±25

250

Page 3

MAX3080E–MAX3089E

±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps),

Slew-Rate-Limited RS-485/RS-422 Transceivers

_______________________________________________________________________________________ 3

DC ELECTRICAL CHARACTERISTICS (continued)

(VCC= +5V ±5%, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at VCC= +5V and TA= +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

and ΔVOCare the changes in VODand VOC, respectively, when the DI input changes state.

Note 3: The SRL pin is internally biased to V

/ 2 by a 100kΩ/100kΩ resistor-divider. It is guaranteed to be V

/ 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

475 1000

µA

420 800

DE = V

No load, RE = DI = GND or V

, SRL = GND

PARAMETER SYMBOL MIN TYP MAX UNITS

Receiver Output Low Voltage V

0.4 V

Receiver Output High Voltage V

VCC-1.5 V

Receiver Input Hysteresis ΔV

25 mV

Receiver Differential Threshold Voltage

-200 -125 -50 mV

Three-State Output Current at Receiver

OZR

±1 µA

Receiver Input Resistance R

96 kΩ

Receiver Output Short-Circuit Current

OSR

±7 ±95 mA

Supply Current I

µA

Supply Current in Shutdown Mode

SHDN

0.001 10 µA

CONDITIONS

No load, RE = DI = GND or V

, SRL = V

IO= 4mA, VID= -200mV

DE = GND, VRE= V

IO= -4mA, VID= -50mV

-7V ≤ VCM≤ 12V

0.4V ≤ VO≤ 2.4V

-7V ≤ VCM≤ 12V

0V ≤ VRO≤ V

ESD Protection for Y, Z, A, B ±15 kVHuman Body Model

RECEIVER

SUPPLY CURRENT

Page 4

MAX3080E–MAX3089E

±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers

4 _______________________________________________________________________________________

SWITCHING CHARACTERISTICS—MAX3080E/MAX3081E/MAX3082E, and MAX3089E with SRL = Unconnected

(VCC= +5V ±5%, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at VCC= +5V and TA= +25°C.)

500 2030 2600

DPHL

PARAMETER SYMBOL MIN TYP MAX UNITS

Driver Disable Time from Low t

DLZ

100 ns

Driver Enable to Output Low t

DZL

3500 ns

Driver Enable to Output High t

DZH

3500 ns

Maximum Data Rate f

MAX

115 kbps

Driver Disable Time from High t

DHZ

100 ns

Receiver Input to Output

RPLH

RPHL

127 200 ns

RPLH

- t

RPHL

Differential

Receiver Skew

RSKD

3±30ns

Receiver Enable to Output Low t

RZL

20 50 ns

Driver Output Skew

DPLH

- t

DPHL |

Driver Input-to-Output

DPLH

500 2030 2600

DSKEW

-3 ±200 ns

Driver Rise or Fall Time tDR, t

667 1320 2500 ns

Receiver Enable to Output High t

RZH

20 50 ns

Receiver Disable Time from Low t

RLZ

20 50 ns

Receiver Disable Time from High

RHZ

20 50 ns

Time to Shutdown t

SHDN

50 200 600 ns

Driver Enable from Shutdown to Output High

DZH(SHDN)

6000 ns

Driver Enable from Shutdown to Output Low

DZL(SHDN)

6000 ns

Receiver Enable from Shutdownto-Output High

RZH(SHDN)

3500 ns

Receiver Enable from Shutdownto-Output Low

RZL(SHDN)

3500 ns

CONDITIONS

Figures 6 and 12, CL= 100pF, S2 closed

Figures 8 and 10, CL= 15pF, S1 closed

Figures 6 and 12, CL= 100pF, S1 closed

Figures 8 and 10, CL= 100pF, S1 closed

Figures 8 and 10, CL= 100pF, S2 closed

Figures 8 and 10, CL= 15pF, S2 closed

Figures 11 and 13; |V

≥ 2.0V;

rise and fall time of V

≤ 15ns

Figures 6 and 12, CL= 100pF, S2 closed

(Note 5)

Figures 11 and 13; |V

≥ 2.0V;

rise and fall time of V

≤ 15ns

Figures 6 and 12, CL= 100pF, S1 closed

Figures 8 and 10, CL= 15pF, S2 closed

Figures 8 and 10, CL= 15pF, S1 closed

Figures 6 and 12, CL= 100pF, S2 closed

Figures 7 and 9, R

DIFF

= 54Ω,

CL1= CL2= 100pF

Figures 6 and 12, CL= 100pF, S1 closed

Figures 7 and 9, R

DIFF

= 54Ω,

= CL2= 100pF

Figures 7 and 9, R

DIFF

= 54Ω,

= CL2= 100pF

Page 5

MAX3080E–MAX3089E

±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps),

Slew-Rate-Limited RS-485/RS-422 Transceivers

_______________________________________________________________________________________ 5

SWITCHING CHARACTERISTICS—MAX3083E/MAX3084E/MAX3085E, and MAX3089E with SRL = V

(VCC= +5V ±5%, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at VCC= +5V and TA= +25°C.)

Receiver Enable from Shutdown-to-Output Low

RZL(SHDN)

Figures 6 and 12, CL= 100pF, S1 closed 3500 ns

ns3500Figures 6 and 12, CL= 100pF, S2 closedt

RZH(SHDN)

Receiver Enable from Shutdown-to-Output High

Driver Enable from Shutdown-to-Output Low

DZL(SHDN)

Figures 8 and 10, CL= 15pF, S1 closed 4500 ns

ns4500Figures 8 and 10, CL= 15pF, S2 closedt

DZH(SHDN)

Driver Enable from Shutdown-to-Output High

Time to Shutdown t

SHDN

(Note 5) 50 200 600 ns

ns20 50Figures 6 and 12, CL= 100pF, S2 closedt

RHZ

Receiver Disable Time from High

Receiver Disable Time from Low t

RLZ

Figures 6 and 12, CL= 100pF, S1 closed 20 50 ns

ns20 50Figures 6 and 12, CL= 100pF, S2 closedt

RZH

Receiver Enable to Output High

Receiver Enable to Output Low t

RZL

Figures 6 and 12, CL= 100pF, S1 closed 20 50 ns

ns3±30

Figures 11 and 13; |V

≥ 2.0V;

rise and fall time of V

≤ 15ns

RSKD

RPLH

- t

RPHL

Differential

Receiver Skew

Receiver Input to Output

RPLH

RPHL

Figures 11 and 13; |V

≥ 2.0V;

rise and fall time of V

≤ 15ns

127 200 ns

ns100Figures 8 and 10, CL= 15pF, S2 closedt

DHZ

Driver Disable Time from High

Driver Disable Time from Low t

DLZ

Figures 8 and 10, CL= 15pF, S1 closed 100 ns

ns2500Figures 8 and 10, CL= 100pF, S1 closedt

DZL

Driver Enable to Output Low

Driver Enable to Output High t

DZH

Figures 8 and 10, CL= 100pF, S2 closed 2500 ns

kbps500f

MAX

Maximum Data Rate

Driver Rise or Fall Time t

DR, tDF

Figures 7 and 9, R

DIFF

= 54Ω,

= CL2= 100pF

200 530 750 ns

ns-3 ±100

Figures 7 and 9, R

DIFF

= 54Ω,

CL1= CL2= 100pF

DSKEW

Driver Output Skew

DPLH

- t

DPHL |

Driver Input-to-Output

DPHL

DPLH

Figures 7 and 9, R

DIFF

= 54Ω,

CL1= CL2= 100pF

250 720 1000

UNITSMIN TYP MAXCONDITIONSSYMBOLPARAMETER

Page 6

MAX3080E–MAX3089E

±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers

6 _______________________________________________________________________________________

SWITCHING CHARACTERISTICS—MAX3086E/MAX3087E/MAX3088E, and MAX3089E with SRL = GND

(VCC= +5V ±5%, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at VCC= +5V and TA= +25°C.)

Note 5: The device is put into shutdown by bringing RE high and DE low. If the enable inputs are in this state for less than 50ns, the

device is guaranteed not to enter shutdown. If the enable inputs are in this state for at least 600ns, the device is guaranteed to have entered shutdown.

UNITSMIN TYP MAXCONDITIONSSYMBOLPARAMETER

Driver Input-to-Output

DPLH

DPHL

Figures 7 and 9, R

DIFF

= 54Ω,

CL1= CL2= 100pF

34 60

ns-2.5 ±10

Figures 7 and 9, R

DIFF

= 54Ω,

CL1= CL2= 100pF

DSKEW

Driver Output Skew

DPLH

- t

DPHL |

Driver Rise or Fall Time t

DR, tDF

Figures 7 and 9, R

DIFF

= 54Ω,

= CL2= 100pF

14 25 ns

Maximum Data Rate f

MAX

10 Mbps

Driver Enable to Output High t

DZH

Figures 8 and 10, CL= 100pF, S2 closed 150 ns

ns150Figures 8 and 10, CL= 100pF, S1 closedt

DZL

Driver Enable to Output Low

Driver Disable Time from Low t

DLZ

Figures 8 and 10, CL= 15pF, S1 closed 100 ns

ns100Figures 8 and 10, CL= 15pF, S2 closedt

DHZ

Driver Disable Time from High

Receiver Input-to-Output

RPLH

RPHL

Figures 11 and 13; |V

≥ 2.0V;

rise and fall time of V

≤ 15ns

106 150 ns

ns0±10

Figures 11 and 13; |V

ID |

≥ 2.0V;

rise and fall time of V

≤ 15ns

RSKD

RPLH

- t

RPHL |

Differential

Receiver Skew

RZL

Figures 6 and 12, CL= 100pF, S1 closed 20 50 ns

ns3500

3500

250

50 200 600

20 50

20 50Figures 6 and 12, CL= 100pF, S2 closed

Figures 6 and 12, CL= 100pF, S1 closed

Figures 6 and 12, CL= 100pF, S2 closed

(Note 5)

Figures 8 and 10, CL= 15pF, S2 closed

Figures 8 and 10, CL= 15pF, S1 closed

Figures 6 and 12, CL= 100pF, S2 closed

Figures 6 and 12, CL= 100pF, S1 closedt

RZL(SHDN)

RZH(SHDN)

DZL(SHDN)

DZH(SHDN)

SHDN

RHZ

RLZ

RZH

Receiver Enable to Output Low

Receiver Enable to Output High

Receiver Disable Time from Low

Receiver Disable Time from High

Time to Shutdown

Driver Enable from Shutdown-to-Output High

Driver Enable from Shutdown-to-Output Low

Receiver Enable from Shutdown-to-Output High

Receiver Enable from Shutdown-to-Output Low

Page 7

MAX3080E–MAX3089E

±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps),

Slew-Rate-Limited RS-485/RS-422 Transceivers

_______________________________________________________________________________________

Typical Operating Characteristics

(VCC= +5V, TA = +25°C, unless otherwise noted.)

NO-LOAD SUPPLY CURRENT

vs. TEMPERATURE

525

A: MAX3086E/MAX3087E/MAX3088E, MAX3089E WITH

500

SRL = GND

475

450

425

400

375

350

NO-LOAD SUPPLY CURRENT (μA)

325

300

-60 100

-40 -20 20 80

B: MAX3080E–MAX3085E, MAX3089E WITH SRL = OPEN OR V

060

TEMPERATURE (°C)

DE = V

DE = GND

MAX3080/3089 TOC-16

OUTPUT CURRENT (mA)

SHUTDOWN CURRENT

vs. TEMPERATURE

SHUTDOWN CURRENT (nA)

-60 100

-40 -20 20 80 TEMPERATURE (°C)

060

MAX3080/3089 TOC-1

OUTPUT LOW VOLTAGE (V)

vs. RECEIVER OUTPUT LOW VOLTAGE

OUTPUT CURRENT

OUTPUT LOW VOLTAGE (V)

MAX3080/3089 TOC-2

OUTPUT CURRENT (mA)

RECEIVER OUTPUT LOW VOLTAGE

vs. TEMPERATURE

0.50 IRO = 8mA

0.45

0.40

0.35

0.30

0.25

0.20

0.15

0.10

-60 80 100

-40 -20 60

040

TEMPERATURE (°C)

4.5

4.4

MAX3080/3089 TOC-5

4.3

4.2

4.1

OUTPUT VOLTAGE (V)

4.0

3.9

3.8

-60 80 100

OUTPUT CURRENT

vs. RECEIVER OUTPUT HIGH VOLTAGE

OUTPUT HIGH VOLTAGE (V)

RECEIVER OUTPUT HIGH VOLTAGE

vs. TEMPERATURE

IRO = 8mA

-40 -20 60

040

TEMPERATURE (°C)

MAX3080/3089 TOC-3

MAX3080/3089 TOC-4

RECEIVER PROPAGATION DELAY

(500kbps MODE) vs. TEMPERATURE

140

= 100pF

LOAD

135

130

125

PROPAGATION DELAY (ns)

120

115

-60 100

-40 -20 20 80 TEMPERATURE (°C)

060

112

110

MAX3080/3089 TOC-7

108

106

104

102

100

PROPAGATION DELAY (ns)

-60 100

RECEIVER PROPAGATION DELAY

(10Mbps MODE) vs. TEMPERATURE

= 100pF

LOAD

-40 -20 20 80

060

TEMPERATURE (°C)

MAX3080/3089 TOC-8

PROPAGATION DELAY (μs)

DRIVER PROPAGATION DELAY

(115kbps MODE) vs. TEMPERATURE

2.20

Rt = 54Ω

2.15

2.10

2.05

2.00

1.95

1.90

-60 100

-40 -20 20 80 TEMPERATURE (°C)

060

MAX3080/3089 TOC-9

Page 8

MAX3080E–MAX3089E

±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers

8 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

(VCC= +5V, TA = +25°C, unless otherwise noted.)

520

560

-60 100

DRIVER PROPAGATION DELAY

(500kbps MODE) vs. TEMPERATURE

600

640

920

MAX3080/3089 TOC-10

TEMPERATURE (°C)

PROPAGATION DELAY (ns)

760

800

720

680

060

840

880

-40 -20 20 80

Rt = 54Ω

-60 100

DRIVER PROPAGATION DELAY

(10Mbps MODE) vs. TEMPERATURE

MAX3080/3089 TOC-11

TEMPERATURE (°C)

PROPAGATION DELAY (ns)

060

-40 -20 20 80

Rt = 54Ω

DRIVER OUTPUT CURRENT

vs. DIFFERENTIAL OUTPUT VOLTAGE

100

OUTPUT CURRENT (mA)

0.1

0.01 01

DIFFERENTIAL OUTPUT VOLTAGE (V)

234 5

MAX3080 TOC-12

OUTPUT CURRENT (mA)

DRIVER OUTPUT LOW VOLTAGE

140

120

100

024681012

OUTPUT CURRENT vs.

OUTPUT LOW VOLTAGE (V)

DRIVER DIFFERENTIAL OUTPUT VOLTAGE

1.90

1.89

1.88

1.87

1.86

OUTPUT VOLTAGE (V)

1.85

1.84

1.83

-60 100

-100

-90

MAX3080-25

-80

-70

-60

-50

-40

-30

OUTPUT CURRENT (mA)

-20

-10

-8 -2

vs. TEMPERATURE

Rt = 54Ω

-40 -20 20 80

060

TEMPERATURE (°C)

OUTPUT CURRENT vs.

DRIVER OUTPUT HIGH VOLTAGE

OUTPUT HIGH VOLTAGE (V)

MAX3080/3089 TOC-13

MAX3080/3089 TOC-27

642-6 -4 0

Page 9

MAX3080E–MAX3089E

±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps),

Slew-Rate-Limited RS-485/RS-422 Transceivers

_______________________________________________________________________________________

Typical Operating Characteristics (continued)

(VCC= +5V, TA = +25°C, unless otherwise noted.)

RECEIVER PROPAGATION DELAY

MAX3086E/MAX3087E/MAX3088E AND MAX3089E

VA - V

WITH SRL = GND

50ns/div

MAX3080/3089 TYP-18

MAX3080E/MAX3081E/MAX3082E AND MAX3089E

RECEIVER PROPAGATION DELAY

MAX3080E–MAX3085E AND MAX3089E

2V/div

5V/div

DRIVER PROPAGATION DELAY

WITH SRL = OPEN

VA - V

MAX3080/3089 TYP-20

WITH SRL = OPEN OR V

50ns/div

5V/div

MAX3080/3089 TYP-17

2V/div

5V/div

- V

DRIVER PROPAGATION DELAY

MAX3083E/MAX3084E/MAX3085E AND MAX3089E

WITH SRL = V

- V

500ns/div

MAX3080/3089 TYP-21

5V/div

2.5V/div

2μs/div

2.5V/div

DRIVER PROPAGATION DELAY

MAX3086E/MAX3087E/MAX3088E AND MAX3089E

WITH SRL = GND

- V

50ns/div

MAX3080/3089 TYP-22

5V/div

2.5V/div

Page 10

MAX3080E–MAX3089E

±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers

10 ______________________________________________________________________________________

Pin Description

MAX3081E MAX3084E MAX3087E

MAX3080E MAX3083E MAX3086E

MAX3082E MAX3085E MAX3088E

FULL-DUPLEX

DEVICES

HALF-

DUPLEX

MODE

FULL-

DUPLEX

MODE

HALF-

DUPLEX

DEVICES

—95 — Noninverting Driver OutputY9

—

Driver Input. With DE high, a low on DI forces noninverting output low and inverting output high. Similarly, a high on DI forces non-inverting output high and inverting output low.

DI5

Slew-Rate-Limit Selector Pin. Connect SRL to GND for 10Mbps communication rate; connect to VCCfor 500kbps communication rate. Leave unconnected for 115kbps communication rate.

SRL—

GroundGND6, 7

88— — TXP—

44— 3

Driver Output Enable. Drive DE high to enable driver outputs. These outputs are high impedance when DE is low. Drive RE high and DE low to enter low-power shutdown mode.

DE4

—

Receiver Output. When RE is low and if A - B ≥ -50mV, RO will be high; if A - B ≤ -200mV, RO will be low.

RO2

Receiver Output Enable. Drive RE low to enable RO; RO is high impedance when RE is high. Drive RE high and DE low to enter low-power shutdown mode.

FUNCTIONNAME

Half/Full-Duplex Selector Pin. Connect H/F to VCCfor halfduplex mode; connect to GND or leave unconnected for full-duplex mode.

H/F

—

Transmitter Phase. Connect TXP to GND, or leave floating for normal transmitter phase/polarity. Connect to V

invert the transmitter phase/polarity.

— — — — 9 Y

Noninverting Receiver Input and Noninverting Driver Output*

10 6 — 10 — Z Inverting Driver Output

— — — — 10 Z Inverting Receiver Input and Inverting Driver Output*

11 7 — 11 — B Inverting Receiver Input

—

— — — 11 B Receiver Input Resistors*

— 7 — — B Inverting Receiver Input and Inverting Driver Output

MAX3089E

Page 11

MAX3080E–MAX3089E

±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps),

Slew-Rate-Limited RS-485/RS-422 Transceivers

______________________________________________________________________________________ 11

Pin Description (continued)

Function Tables

TRANSMITTING

INPUTS OUTPUTS

DE DI Z Y

X 1 1 0 1

X 1 0 1 0

0 0 X High- Z High-Z

1 0 X Shutdown

RECEIVING

INPUTS OUTPUT

DE A - B RO

0 X ≥ -0.05V 1

0 X ≤ -0.2V 0

0 X Open/shorted 1

1 1 X High- Z

1 0 X Shutdown

TRANSMITTING

INPUT OUTPUTS

DI Z Y

1 0 1

0 1 0

RECEIVING

INPUTS OUTPUT

A - B RO

≥ -0.05V 1

≤ -0.2V 0

Open/shorted 1

X = Don’t care Shutdown mode, driver and receiver outputs high impedance

(MAX3089E only). In half-duplex mode, the driver outputs serve as receiver inputs. The full-duplex receiver inputs (A and B) will still

have a 1/8-unit load, but are not connected to the receiver.

MAX3081E/MAX3084E/MAX3087EMAX3080E/MAX3083E/MAX3086E

FUNCTIONNAME

Not Connected. Not internally connected.N.C.————1, 8, 13

Positive Supply 4.75V ≤ VCC≤ 5.25VV

14148114

Receiver Phase. Connect RXP to GND, or leave unconnected for normal receiver phase/polarity. Connect to V

to invert the receiver phase/polarity.

RXP1313———

Noninverting Receiver Input and Noninverting Driver Output

A——6——

Receiver Input Resistors*

HALF-

DUPLEX

DEVICES

FULL-

DUPLEX

MODE

HALF-

DUPLEX

MODE

A12————

Noninverting Receiver InputA—12—812

MAX3081E MAX3084E MAX3087E

MAX3080E MAX3083E MAX3086E

MAX3082E MAX3085E MAX3088E

MAX3089E

FULL-DUPLEX

DEVICES

Page 12

MAX3080E–MAX3089E

±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers

12 ______________________________________________________________________________________

Function Tables (continued)

TRANSMITTING

INPUTS OUTPUTS

DE DI B/Z A/Y

X 1 1 0 1

X 1 0 1 0

0 0 X High- Z High-Z

1 0 X Shutdown

RECEIVING

INPUTS OUTPUT

DE A - B RO

0 X ≥ -0.05V 1

0 X ≤ -0.2V 0

0 X Open/shorted 1

1 1 X High- Z

1 0 X Shutdown

MAX3089E

TRANSMITTING

INPUTS OUTPUTS

TXP

DE DI Z Y

0 X 1 1 0 1

0 X 1 0 1 0

1 X 1 1 1 0

1 X 1 0 0 1

X 0 0 X High- Z High-Z

X 1 0 X Shutdown

INPUTS OUTPUT

H/F

RXP

DE A - B Y - Z RO

0 0 0 X ≥ -0.05V X 1

0 0 0 X ≤ -0.2V X 0

0 1 0 X ≥ -0.05V X 0

0 1 0 X ≤ -0.2V X 1

1 0 0 0 X ≥ -0.05V 1

1 0 0 0 X ≤ -0.2V 0

1 1 0 0 X ≥ -0.05V 0

1 1 0 0 X ≤ -0.2V 1

0 0 0 X

Open/

shorted

X 1

1 0 0 0 X

Open/

shorted

0 1 0 X

Open/

shorted

X 0

1 1 0 0 X

Open/

shorted

X X 1 1 X X High-Z

X X 1 0 X X Shutdown

RECEIVING

X = Don’t care Shutdown mode, driver and receiver outputs high impedance

MAX3082E/MAX3085E/MAX3088E

Page 13

MAX3080E–MAX3089E

±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps),

Slew-Rate-Limited RS-485/RS-422 Transceivers

______________________________________________________________________________________ 13

Figure 2. MAX3081E/MAX3084E/MAX3087E Pin Configuration and Typical Full-Duplex Operating Circuit

Figure 1. MAX3080E/MAX3083E/MAX3086E Pin Configuration and Typical Full-Duplex Operating Circuit

Figure 3. MAX3082E/MAX3085E/MAX3088E Pin Configuration and Typical Half-Duplex Operating Circuit

TOP VIEW

N.C.

GND

1, 8, 13

N.C.

DIP/SO

TOP VIEW

GND

DIP/SO

144

0.1μF

MAX3080E

MAX3083E

3 6, 7

GND

0.1μF

MAX3086E

GND DE

MAX3081E MAX3084E MAX3087E

GND

TOP VIEW

0.1μF

MAX3082E MAX3085E

GND

MAX3088E

DIP/SO

NOTE: PIN LABELS Y AND Z ON TIMING, TEST, AND WAVEFORM DIAGRAMS. REFER TO PINS A AND B WHEN DE IS HIGH.

Page 14

MAX3080E–MAX3089E

Detailed Description

The MAX3080E–MAX3089E 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, or when they are connected to a terminated transmission line with all drivers disabled (see the

Fail-Safe

section). The MAX3080E/MAX3081E/MAX3082E feature reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission up to 115kbps (see the

Reduced EMI and Reflections

section). The MAX3083E/MAX3084E/MAX3085E offer higher driver output slew-rate limits, allowing transmit speeds up to 500kbps. The MAX3086E/MAX3087E/MAX3088E’s driver 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 three-state driver.

The MAX3082E/MAX3085E/MAX3088E are half-duplex transceivers, while the MAX3080E/MAX3081E/ MAX3083E/MAX3084E/MAX3086E/MAX3087E are fullduplex transceivers. The MAX3089E is selectable between half- and full-duplex communication by driving a selector pin high or low, respectively.

All of these parts operate from a single +5V supply. Drivers are output short-circuit current limited. Thermal shutdown circuitry protects drivers against excessive power dissipation. When activated, the thermal shutdown circuitry places the driver outputs into a highimpedance state.

Receiver Input Filtering

The receivers of the MAX3080E–MAX3085E, and the MAX3089E when operating in 115kbps or 500kbps mode, incorporate input filtering in addition to input hysteresis. This filtering enhances noise immunity with differential signals that have very slow rise and fall times. Receiver propagation delay increases by 20% due to this filtering.

Fail-Safe

The MAX3080E family guarantees a logic-high receiver output when the receiver inputs are shorted or open, or when they are connected to a terminated transmission line with all drivers disabled. This is done by setting the receiver threshold between -50mV and -200mV. If the differential receiver input voltage (A - B) is greater than or equal to -50mV, RO is logic high. If A - B is less than or equal to -200mV, RO is logic low. In the case of a terminated bus with all transmitters disabled, the receiver’s differential input voltage is pulled to 0V by

the termination. With the receiver thresholds of the MAX3080E family, this results in a logic high with a 50mV minimum noise margin. Unlike previous fail-safe devices, the -50mV to -200mV threshold complies with the ±200mV EIA/TIA-485 standard.

MAX3089E Programming

The MAX3089E has several programmable operating modes. Transmitter rise and fall times are programmable between 2500ns, 750ns, and 25ns, resulting in maximum data rates of 115kbps, 500kbps, and 10Mbps, respectively. To select the desired data rate, drive SRL to one of three possible states by using a three-state driver, by connecting it to VCCor GND, or by leaving it unconnected. For 115kbps operation, set the three-state device in high-impedance mode or leave SRL unconnected. For 500kbps operation, drive SRL high or connect it to VCC. For 10Mbps operation, drive SRL low or connect it to GND. SRL can be changed during operation without interrupting data communications.

Occasionally, twisted-pair lines are connected backward from normal orientation. The MAX3089E has two pins that invert the phase of the driver and the receiver to correct for this problem. For normal operation, drive TXP and RXP low, connect them to ground, or leave them unconnected (internal pulldown). To invert the driver phase, drive TXP high or connect it to VCC. To invert the receiver phase, drive RXP high or connect it to VCC. Note that the receiver threshold is positive when RXP is high.

The MAX3089E can operate in full- or half-duplex mode. Drive the H/F pin low, leave it unconnected (internal pulldown), or connect it to GND for full-duplex operation, and drive it high for half-duplex operation. In full-duplex mode, the pin configuration of the driver and receiver is the same as that of a MAX3080E (Figure 4). In half-duplex mode, the receiver inputs are switched to the driver outputs, connecting outputs Y and Z to inputs A and B, respectively. In half-duplex mode, the internal full-duplex receiver input resistors are still connected to pins 11 and 12.

±15kV ESD Protection

As with all Maxim devices, ESD-protection structures are incorporated on all pins to protect against electrostatic discharges encountered during handling and assembly. The driver outputs and receiver inputs of the MAX3080E–MAX3089E family have extra protection against static electricity. Maxim’s engineers have developed state-of-the-art structures to protect these pins against ESD of ±15kV without damage.

±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers

14 ______________________________________________________________________________________

Page 15

The ESD-protected pins are tested with reference to the ground pin in a powered-down condition. They are tested to ±15kV using the Human Body Model.

ESD Test Conditions

ESD performance depends on a variety of conditions. Contact Maxim for a reliability report that documents test setup, test methodology, and test results.

Human Body Model

Figure 14a shows the Human Body Model, and Figure 14b shows the current waveform it generates when dis-

charged into a low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of interest, which is then discharged into the test device through a 1.5kΩ resistor.

Machine Model

The Machine Model for ESD tests all pins using a 200pF storage capacitor and zero discharge resistance. The objective is to emulate the stress caused when I/O pins are contacted by handling equipment during test and assembly. All pins require this protection, not just RS-485 inputs and outputs.

MAX3080E–MAX3089E

±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps),

Slew-Rate-Limited RS-485/RS-422 Transceivers

______________________________________________________________________________________ 15

Figure 5. Driver DC Test Load

Figure 6. Receiver Enable/Disable Timing Test Load

Figure 4. MAX3089E Pin Configuration and Functional Diagram

TOP VIEW

H/F

SRL

GND

NOTE: SWITCH POSITIONS INDICATED FOR H/F = GND

MAX3089E

DIP/SO

MAX3089E

RXP

TXP

H/F

TXP

GND DE SRL

RECEIVER

OUTPUT

TEST POINT

15pF

Page 16

MAX3080E–MAX3089E

±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers

16 ______________________________________________________________________________________

Figure 7. Driver Timing Test Circuit Figure 8. Driver Enable and Disable Timing Test Load

Figure 9. Driver Propagation Delays Figure 10. Driver Enable and Disable Times (Except

MAX3081E/MAX3084E/MAX3087E)

Figure 11. Receiver Propagation Delays Figure 12. Receiver Enable and Disable Times (Except

MAX3081E/MAX3084E/MAX3087E)

OD2

DIFF

OUTPUT

500Ω

UNDER TEST

DIFF

1.5V

DPLH

DPHL

1.5V

1/2 V

-V

10%

DIFF

90%

SKEW = | tDPLH

= V (Y) - V (Z)

- t

DPHL

90%

10%

1.5V 1.5V

Y, Z

, t

DZL(SHDN)

2.3V

OUTPUT NORMALLY LOW

OUTPUT NORMALLY HIGH

2.3V

DZH(SHDN)

, t

DZL

DZH

DLZ

DHZ

-1V

1.5V 1.5V

RPHL

OUTPUT

RPLH

INPUT

1.5V 1.5V

, t

RZL(SHDN)

RZL

1.5V

OUTPUT NORMALLY LOW

OUTPUT NORMALLY HIGH

1.5V

, t

RZH(SHDN)

RZH

RLZ

RHZ

+0.5V

-0.5V

VOL + 0.5V

- 0.5V

Page 17

MAX3080E–MAX3089E

±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps),

Slew-Rate-Limited RS-485/RS-422 Transceivers

______________________________________________________________________________________ 17

Figure 13. Receiver Propagation Delay Test Circuit

Figure 15. Driver Output Waveform and FFT Plot of MAX3086E/MAX3087E/MAX3088E, and MAX3089E with SRL = GND, Transmitting a 20kHz Signal

Figure 14a. Human Body ESD Test Model

Figure 14b. Human Body Current Waveform

Figure 16. Driver Output Waveform and FFT Plot of MAX3083E/MAX3084E/MAX3085E, and MAX3089E with SRL = V

CC,

Transmitting a 20kHz Signal

Figure 17. Driver Output Waveform and FFT Plot of MAX3080E/MAX3081E/MAX3082E, and MAX3089E with SRL = Unconnected, Transmitting a 20kHz Signal

1MΩ

1500Ω

ATE

PEAK-TO-PEAK RINGING

(NOT DRAWN TO SCALE)

AMPERES

IP 100%

90%

36.8%

10%

TIME

CURRENT WAVEFORM

RECEIVER OUTPUT

DISCHARGE

RESISTANCE

STORAGE

CAPACITOR

HIGH-

VOLTAGE

SOURCE

CHARGE-CURRENT

LIMIT RESISTOR

100pF

20dB/div

100kHz/div0Hz 1MHz

DEVICE UNDER

TEST

MAX3080/3089 FIG-14

20dB/div

100kHz/div0Hz 1MHz

MAX3080/3089 FIG-15

20dB/div

100kHz/div0Hz 1MHz

MAX3080/3089 FIG-16

Page 18

MAX3080E–MAX3089E

Applications Information

256 Transceivers on the Bus

The standard RS-485 receiver input impedance is 12kΩ (one-unit load), and the standard driver can drive up to 32 unit loads. The MAX3080E family of transceivers have a 1/8-unit-load receiver input impedance (96kΩ), allowing up to 256 transceivers to be connected in parallel on one communication line. Any combination of these devices and/or other RS-485 transceivers with a total of 32 unit loads or less can be connected to the line.

Reduced EMI and Reflections

The MAX3080E–MAX3085E, and MAX3089E with SRL = V

or unconnected, are slew-rate limited, minimizing EMI and reducing reflections caused by improperly terminated cables. Figure 15 shows the driver output waveform and its Fourier analysis of a 20kHz signal transmitted by a MAX3086E/MAX3087E/MAX3088E, and MAX3089E with SRL = GND. High-frequency harmonic components with large amplitudes are evident. Figure 16 shows the same signal displayed for a MAX3083E/MAX3084E/MAX3085E, and MAX3089E with SRL = V

CC, transmitting under the same conditions.

Figure 16’s high-frequency harmonic components are much lower in amplitude, compared with Figure 15’s, and the potential for EMI is significantly reduced. Figure 17 shows the same signal displayed for a MAX3080E/ MAX3081E/MAX3082E, and MAX3089E with SRL = unconnected, transmitting under the same conditions. Figure 17’s high-frequency harmonic components are even lower.

In general, a transmitter’s rise time relates directly to the length of an unterminated stub, which can be driven with only minor waveform reflections. The following equation expresses this relationship conservatively:

Length = t

RISE

/ (10 x 1.5ns/ft)

where t

RISE

is the transmitter’s rise time.

For example, the MAX3080E’s rise time is typically 1320ns, which results in excellent waveforms with a stub length up to 90 feet. A system can work well with longer unterminated stubs, even with severe reflections, if the waveform settles out before the UART samples them.

Low-Power Shutdown Mode

(Except MAX3082E/MAX3085E/MAX3088E)

Low-power shutdown mode is initiated by bringing both RE high and DE low. In shutdown, the devices typically draw only 1nA of supply current.

RE and DE may be driven simultaneously; the parts are guaranteed not to enter shutdown if RE is high and DE is low for less than 50ns. If the inputs are in this state for at least 600ns, the parts are guaranteed to enter shutdown.

Enable times tZHand tZLin the

Switching Char-

acteristics

tables assume the part was not in a low-

power shutdown state. Enable times t

ZH(SHDN)

and

ZL(SHDN)

assume the parts were shut down. It takes drivers and receivers longer to become enabled from low-power shutdown mode (t

ZH(SHDN)

, t

ZL(SHDN)

) than

from driver/receiver-disable mode (tZH, tZL).

±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers

18 ______________________________________________________________________________________

Figure 18. Line Repeater for MAX3080E/MAX3081E/MAX3083E/ MAX3084E/MAX3086E/MAX3087E, and MAX3089E in Full-Duplex Mode

Figure 19. MAX3080E/MAX3081E/MAX3082E, and MAX3089E with SRL = Unconnected, System Differential Voltage at 50kHz Driving 4000ft of Cable

MAX3080/3089 FIG-18

MAX3080E/MAX3081E/MAX3083E/ MAX3084E/MAX3086E/MAX3087E/

MAX3089E (FULL DUPLEX)

A RO RE

120Ω

DATA IN

DATA OUT

VA - V

5V/div

1V/div

5V/div

NOTE: RE AND DE ON MAX3080E/MAX3083E/MAX3086E/MAX3089E ONLY.

5μs/div

Page 19

Driver Output Protection

Two mechanisms prevent excessive output current and power dissipation caused by faults or by bus contention. The first, a foldback current limit on the output stage, provides immediate protection against short circuits over the whole common-mode voltage range (see

Typical Operating Characteristics

). The second, a thermal shutdown circuit, forces the driver outputs into a high-impedance state if the die temperature becomes excessive.

Line Length vs. Data Rate

The RS-485/RS-422 standard covers line lengths up to 4000 feet. For line lengths greater than 4000 feet, use the repeater application shown in Figure 18.

Figures 19, 20, and 21 show the system differential voltage for the parts driving 4000 feet of 26AWG twistedpair wire at 110kHz into 120Ω loads.

Typical Applications

The MAX3082E/MAX3085E/MAX3088E/MAX3089E transceivers are designed for bidirectional data communications on multipoint bus transmission lines. Figures 22 and 23 show typical network applications circuits. These parts can also be used as line repeaters, with cable lengths longer than 4000 feet, as shown in Figure 18.

To minimize reflections, the line should be terminated at both ends in its characteristic impedance, and stub lengths off the main line should be kept as short as possible. The slew-rate-limited MAX3082E/MAX3085E, and the two modes of the MAX3089E, are more tolerant of imperfect termination.

MAX3080E–MAX3089E

±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps),

Slew-Rate-Limited RS-485/RS-422 Transceivers

______________________________________________________________________________________ 19

Figure 20. MAX3083E/MAX3084E/MAX3085E, and MAX3089E with SRL = V

CC,

System Differential Voltage at 50kHz Driving

4000ft of Cable

Figure 21. MAX3086E/MAX3087E/MAX3088E, and MAX3089E with SRL = GND, System Differential Voltage at 200kHz Driving 4000ft of Cable

Figure 22. Typical Half-Duplex RS-485 Network

MAX3080/3089 FIG-19

5V/div

1V/div

5V/div

VA - V

2μs/div

120Ω

MAX3082E MAX3085E MAX3088E

*MAX3089E (HALF-DUPLEX)

B/Z*

A/Y*

DI RO DE

MAX3080/3089 FIG-20

VA - V

1μs/div

120Ω

RERE

5V/div

1V/div

5V/div

RO RE

Page 20

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

MAX3080E–MAX3089E

±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers

Figure 23. Typical Full-Duplex RS-485 Network

8 Plastic DIP-40°C to +85°CMAX3085EEPA

14 SO-40°C to +85°CMAX3083EESD

14 Plastic DIP0°C to +70°CMAX3083ECPD

14 SO0°C to +70°C

MAX3083ECSD

8 Plastic DIP-40°C to +85°CMAX3082EEPA

8 SO-40°C to +85°CMAX3082EESA

8 Plastic DIP0°C to +70°CMAX3082ECPA

8 SO0°C to +70°C

MAX3082ECSA

8 Plastic DIP-40°C to +85°CMAX3081EEPA

8 SO-40°C to +85°CMAX3081EESA

8 Plastic DIP0°C to +70°CMAX3081ECPA

8 SO0°C to +70°C

MAX3081ECSA

PIN-PACKAGETEMP. RANGEPART

14 Plastic DIP-40°C to +85°CMAX3083EEPD 8 SO0°C to +70°C

MAX3084ECSA

8 Plastic DIP0°C to +70°CMAX3084ECPA 8 SO-40°C to +85°CMAX3084EESA

8 Plastic DIP-40°C to +85°CMAX3084EEPA 8 SO0°C to +70°C

MAX3085ECSA

8 Plastic DIP0°C to +70°CMAX3085ECPA 8 SO-40°C to +85°CMAX3085EESA

Ordering Information (continued)

PART TEMP. RANGE PIN-PACKAGE

MAX3086ECSD

0°C to +70°C 14 SO MAX3086ECPD 0°C to +70°C 14 Plastic DIP MAX3086EESD -40°C to +85°C 14 SO MAX3086EEPD -40°C to +85°C 14 Plastic DIP MAX3087ECSA

0°C to +70°C 8 SO

8 Plastic DIP0°C to +70°CMAX3087ECPA

MAX3087EESA -40°C to +85°C 8 SO

8 Plastic DIP-40°C to +85°CMAX3087EEPA

MAX3088ECSA

0°C to +70°C 8 SO

8 Plastic DIP0°C to +70°CMAX3088ECPA

MAX3088EESA -40°C to +85°C 8 SO

8 Plastic DIP-40°C to +85°CMAX3088EEPA

MAX3089ECSD

0°C to +70°C 14 SO

14 Plastic DIP0°C to +70°CMAX3089ECPD

MAX3089EESD -40°C to +85°C 14 SO

14 Plastic DIP-40°C to +85°CMAX3089EEPD

Revision History

Pages changed at Rev 1: 1, 19, 20

RO RE

NOTE: RE AND DE ON MAX3080E/MAX3083E/MAX3086E/MAX3089E ONLY.

120Ω

DI DIRO RO

DE DE

120Ω

MAX3089E (FULL-DUPLEX)

MAX3080E MAX3081E MAX3083E MAX3084E MAX3086E MAX3087E

RE RO