MAX3040ESE+T Datasheet MAX3045BESE+T, MAX3040EWE+, MAX3041EUE+ | P1-P3

General Description

The MAX3040–MAX3045 is a family of 5V quad RS-

485/RS-422 transmitters designed for digital data trans-

mission over twisted-pair balanced lines. All transmitter

outputs are protected to ±10kV using the Human Body

Model. In addition the MAX3040–MAX3045 withstand

±4kV per IEC 1000-4-4 Electrical Fast Transient/Burst

Stressing. The MAX3040/MAX3043 (250kbps) and the

MAX3041/MAX3044 (2.5Mbps) are slew-rate limited

transmitters that minimize EMI and reduce reflections

caused by improperly terminated cables, thus allowing

error-free transmission.

The MAX3040–MAX3045 feature a hot-swap capability

that eliminates false transitions on the data cable during

power-up or hot insertion. The MAX3042B/MAX3045B

are optimized for data transfer rates up to 20Mbps, the

MAX3041/MAX3044 for data rates up to 2.5Mbps, and

the MAX3040/MAX3043 for data rates up to 250kbps.

The MAX3040–MAX3045 offer optimum performance

when used with the MAX3093E or MAX3095 5V quad

differential line receivers or MAX3094E/MAX3096 3V

quad differential line receivers.

The MAX3040–MAX3045 are ESD-protected pin-compat-

ible, low-power upgrades to the industry-standard

‘SN75174 and ‘DS26LS31C. They are available in space-

saving TSSOP, narrow SO, and wide SO packages.

Applications

Telecommunications Equipment

Industrial Motor Control

Transmitter for ESD-Sensitive Applications

Hand-Held Equipment

Industrial PLCs

Networking

Features

♦ ESD Protection: ±10kV—Human Body Model

♦ Single +5V Operation

♦ Guaranteed Device-to-Device Skew

(MAX3040/MAX3041/MAX3043/MAX3044)

♦ Pin-Compatible with ‘SN75174, ‘26LS31C and

LTC487

♦ Hot-Swappable for Telecom Applications

♦ Up to 20Mbps Data Rate (MAX3042B/MAX3045B)

♦ Slew-Rate Limited (Data Rates at 2.5Mbps and

250kbps)

♦ 2nA Low-Power Shutdown Mode

♦ 1mA Operating Supply Current

♦ ±4kV EFT Fast Transient Burst Immunity per IEC

1000-4-4

♦ Level 2 Surge Immunity per IEC 1000-4-5,

Unshielded Cable Model

♦ Ultra-Small 16-Pin TSSOP, 16-Pin Narrow SO, and

Wide 16-Pin SO

MAX3040–MAX3045

±10kV ESD-Protected, Quad 5V RS-485/RS-422

Transmitters

________________________________________________________________ Maxim Integrated Products 1

Pin Configurations

Selector Guide

Ordering Information

19-2143; Rev 1; 12/01

Ordering Information continued at end of data sheet.

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.

PART

TEMP RANGE

PIN-PACKAGE

DATA

RATE

MAX3040CUE

0°C to +70°C

16 TSSOP

250kbps

MAX3040CSE

0°C to +70°C

16 Narrow SO

250kbps

MAX3040CWE

0°C to +70°C

16 Wide SO

250kbps

MAX3040EUE

-40°C to +85°C

16 TSSOP

250kbps

MAX3040ESE

-40°C to +85°C

16 Narrow SO

250kbps

MAX3040EWE

-40°C to +85°C

16 Wide SO

250kbps

T1IN V

T4IN

EN34

T3IN

TOP VIEW

MAX3040

MAX3041

MAX3042B

16 TSSOP/SO

EN12

T2IN

GND

PART

DATA RATE

(bps)

INDUSTRY STANDARD

PINOUT

MAX3040 250k 75174, 34C87, LTC487

MAX3041 2.5M 75174, 34C87, LTC487

MAX3042B 20M 75174, 34C87, LTC487

MAX3043 250k 26LS31

MAX3044 2.5M 26LS31

MAX3045B 20M 26LS31

Pin Configurations continued at end of data sheet.

MAX3040–MAX3045

±10kV ESD-Protected, Quad 5V RS-485/RS-422

Transmitters

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

= +5V ±5%, T

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at V

= +5V and T

= +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.

All voltages referenced to ground (GND).

Supply Voltage (V

).............................................................+7V

Control Input Voltage (EN,

EN, EN_) .........-0.3V to (V

+ 0.3V)

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

+ 0.3V)

Driver Output Voltage (Y_, Z_)

(Driver Disabled) .............................................-7.5V to +12.5V

Driver Output Voltage (Y_, Z_)

(Driver Enabled) .................................................-7.5V to +10V

Continuous Power Dissipation (T

= +70°C)

16-Pin TSSOP (derate 9.4mW/°C above +70°C) ..........755mW

16-Pin Narrow SO (derate 8.70mW/°C above +70°C) ..696mW

16-Pin Wide SO (derate 9.52mW/°C above +70°C) .....762mW

Operating Temperature Range

MAX304_C_E .......................................................0°C to +70°C

MAX304_E_E ....................................................-40°C to +85°C

Maximum Junction Temperature .....................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX

UNITS

DRIVER

Figure 1, R = 50Ω 2.0

Driver Differential Output V

Figure 1, R = 27Ω 1.5

Change in Magnitude of

Differential Output Voltage

∆V

Figure 1, R = 50Ω or 27Ω (Note 2) 0.2 V

Driver Common-Mode Output

Voltage

Figure 1, R = 50Ω or 27Ω

/ 2

Change In Magnitude of

Common-Mode Voltage

∆V

Figure 1, R = 50Ω or 27Ω (Note 2) 0.2 V

Input High Voltage V

T_IN, EN_, EN, EN 2.0 V

Input Low Voltage V

T_IN, EN_, EN, EN 0.8 V

Hot-Swap Driver Input Current

HOT

SWAP

EN_, EN, EN (Note 3)

±200

µA

Driver Input Current I

T_IN, EN_, EN, EN ±1µA

Driver Short-Circuit Output

Current

-7V

OUT

+10V (Note 4)

±25 ±250

MAX3040/MAX3041/MAX3042B

EN_ = GND

Output Leakage (Y_, Z_)

when Disabled

MAX3043/MAX3044/MAX3045B

EN = GND, EN = V

±1µA

ESD Protection (Y_, Z_) Human Body Model

±10

Electrical Fast Transient/Burst

Immunity

IEC 1000-4-4 ±4kV

SUPPLY CURRENT

Supply Current I

No load 1 2 mA

MAX3040/MAX3041/MAX3042B

EN_ = GND, T

= +25°C

Supply Current in Shutdown

Mode

SHDN

MAX3043/MAX3044/MAX3045B

EN = GND, EN = V

, T

= +25°C

0.002

10 µA

MAX3040–MAX3045

±10kV ESD-Protected, Quad 5V RS-485/RS-422

Transmitters

_______________________________________________________________________________________ 3

SWITCHING CHARACTERISTICS—MAX3040/MAX3043

= +5V ±5%, T

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at V

= +5V and T

= +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Maximum Data Rate f

MAX

250

kbps

PLH

0.7 1.5

Driver Propagation Delay

PHL

Figures 2 and 3,

DIFF

= 54Ω, C

DIFF

= 50pF

0.7 1.5

µs

0.48

0.75

1.33

Driver Differential Output

Rise-Time/Fall-Time

Figures 2 and 3,

DIFF

= 54Ω, C

DIFF

= 50pF

0.48

0.75

1.33

µs

DSKEW

Different chips

±350

Skew Driver to Driver

SSKEW

Same chip

Figures 2 and 3,

DIFF

= 54Ω,

DIFF

= 50pF

±100

Driver Differential Output Skew

| t

PLH

- t

PHL

SKEW

Figures 2 and 3,

DIFF

= 54Ω, C

DIFF

= 50pF

±100

Driver Enable to Output High t

MAX3040, Figures 4 and 5, S2 closed,

= 500Ω, C

= 100pF

2.0 µs

Driver Enable from Shutdown to

Output High

ZH(SHDN)

Figures 4 and 5, S2 closed,

= 500Ω, C

= 100pF

2.0 µs

Driver Enable to Output Low t

MAX3040, Figures 4 and 5, S1 closed,

= 500Ω, C

= 100pF

2.0 µs

Driver Enable from Shutdown to

Output Low

ZL(SHDN)

Figures 4 and 5, S1 closed,

= 500Ω, C

= 100pF

2.0 µs

Driver Disable Time from Low t

Figures 4 and 5, S1 closed,

= 500Ω, C

= 15pF

500

Driver Disable Time from High t

Figures 4 and 5, S2 closed,

= 500Ω, C

= 15pF

500

SWITCHING CHARACTERISTICS—MAX3041/MAX3044

= +5V ±5%, T

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at V

= +5V and T

= +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Maximum Data Rate f

MAX

2.5

Mbps

PLH

150

Driver Propagation Delay

PHL

Figures 2 and 3,

DIFF

= 54Ω, C

DIFF

= 50pF

150

33 70

133

Driver Differential Output

Rise-Time/Fall-Time

Figures 2 and 3,

DIFF

= 54Ω, C

DIFF

= 50pF

33 70

133

DSKEW

Different chips

±52

Skew Driver to Driver

SSKEW

Same chip

Figures 2 and 3,

DIFF

= 54Ω,

DIFF

= 50pF

±15

Driver Differential Output Skew

| t

PLH

- t

PHL

SKEW

Figures 2 and 3,

DIFF

= 54Ω, C

DIFF

= 50pF

±15

Driver Enable to Output High t

MAX3041, Figures 4 and 5, S2 closed,

= 500Ω, C

= 100pF

400

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15

MAX3040ESE+T

Mfr. #:

Buy MAX3040ESE+T

Manufacturer:

Maxim Integrated

Description:

RS-422/RS-485 Interface IC Quad 5V RS-485 RS-422 Trx

Lifecycle:

New from this manufacturer.

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MAX3040ESE+T

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