Rainbow Electronics MAX3033E User Manual

General Description

The MAX3030E–MAX3033E family of quad RS-422
transmitters send digital data transmission signals over
twisted-pair balanced lines in accordance with TIA/EIA­422-B and ITU-T V.11 standards. All transmitter outputs
are protected to ±15kV using the Human Body Model.
The MAX3030E–MAX3033E are available with either a
2Mbps or 20Mbps guaranteed baud rate. The 2Mbps
baud rate transmitters feature slew-rate-limiting to mini­mize EMI and reduce reflections caused by improperly
terminated cables.

The 20Mbps baud rate transmitters feature low-static
current consumption (ICC< 100µA), making them ideal
for battery-powered and power-conscious applications.
They have a maximum propagation delay of 16ns and a
part-to-part skew less than 5ns, making these devices
ideal for driving parallel data. The MAX3030E–
MAX3033E feature hot-swap capability that eliminates
false transitions on the data cable during power-up or
hot insertion.

The MAX3030E–MAX3033E are low-power, ESD-pro­tected, pin-compatible upgrades to the industry-stan­dard 26LS31 and SN75174. They are available in
space-saving 16-pin TSSOP and SO packages.

Applications

Telecom Backplanes

V.11/X.21 Interface

Industrial PLCs

Motor Control

Features

♦ Meet TIA/EIA-422-B (RS-422) and ITU-T V.11

Recommendation

♦ ±15kV ESD Protection on Tx Outputs

♦ Hot-Swap Functionality

♦ Guaranteed 20Mbps Data Rate (MAX3030E,

MAX3032E)

♦ Slew-Rate-Controlled 2Mbps Data Rate

(MAX3031E, MAX3033E)

♦ Available in 16-Pin TSSOP and Narrow SO

Packages

♦ Low-Power Design (<330µW, V

CC

= 3.3V Static)

♦ +3.3V Operation

♦ Industry-Standard Pinout

♦ Thermal Shutdown

MAX3030E–MAX3033E

±15kV ESD-Protected, 3.3V Quad

RS-422 Transmitters

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

19-2671; Rev 0; 10/02

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.

Pin Configurations

TOP VIEW

DI1

1

DO1+

2

DO1-

3

MAX3030E/

4

EN

DI2

5

6

7

8

MAX3031E

TSSOP/SO

DO2-

DO2+

GND

DO1+

DO1-

EN1&2

DO2-

DO2+

GND

DI1

DI2

1

2

3

4

5

6

7

8

MAX3032E/

MAX3033E

TSSOP/SO

16

V

CC

DI4

15

DO4+

14

DO4-

13

12

EN

DO3-

11

DO3+

10

DI3

9

PART TEMP RANGE PIN-PACKAGE

MAX3030ECSE 0°C to +70°C 16 SO (Narrow)

MAX3030ECUE 0°C to +70°C 16 TSSOP

MAX3030EESE -40°C to +85°C 16 SO (Narrow)

MAX3030EEUE -40°C to +85°C 16 TSSOP

MAX3031ECSE 0°C to +70°C 16 SO (Narrow)

MAX3031ECUE 0°C to +70°C 16 TSSOP

MAX3031EESE -40°C to +85°C 16 SO (Narrow)

MAX3031EEUE -40°C to +85°C 16 TSSOP

16

V

CC

DI4

15

DO4+

14

DO4-

13

12

EN3&4

DO3-

11

DO3+

10

DI3

9

MAX3032ECSE 0°C to +70°C 16 SO (Narrow)

MAX3032ECUE 0°C to +70°C 16 TSSOP

MAX3032EESE -40°C to +85°C 16 SO (Narrow)

MAX3032EEUE -40°C to +85°C 16 TSSOP

MAX3033ECSE 0°C to +70°C 16 SO (Narrow)

MAX3033ECUE 0°C to +70°C 16 TSSOP

MAX3033EESE -40°C to +85°C 16 SO (Narrow)

MAX3033EEUE -40°C to +85°C 16 TSSOP

MAX3030E–MAX3033E

±15kV ESD-Protected, 3.3V Quad
RS-422 Transmitters

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

(3V ≤ VCC≤ 3.6V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at VCC= +3.3V 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.

(All Voltages Are Referenced to Device Ground, Unless
Otherwise Noted)

VCC........................................................................................+6V

EN1&2, EN3&4, EN, EN............................................-0.3V to +6V

DI_ ............................................................................-0.3V to +6V

DO_+, DO_- (normal condition) .................-0.3V to (V

CC

+ 0.3V)

DO_+, DO_- (power-off or three-state condition).....-0.3V to +6V

Driver Output Current per Pin.........................................±150mA

Continuous Power Dissipation (T

A

= +70°C)

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

16-Pin TSSOP (derate 9.40mW/°C above +70°C) .......755mW

Operating Temperature Ranges

MAX303_EC_ ......................................................0°C to +70°C

MAX303_EE_ ...................................................-40°C to +85°C

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

Storage Temperature Range .............................-65°C to +160°C

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

DRIVER OUTPUT: DO_+, DO_-

Differential Driver Output

Change in Differential Output
Voltage

Driver Common-Mode Output
Voltage

Change in Common-Mode
Voltage

Three-State Leakage Current I

Output Leakage Current I

Driver Output Short-Circuit
Current

INPUTS: EN, EN, EN1&2, EN3&4

Input High Voltage V

Input Low Voltage V

Input Current I

Hot-Swap Driver Input Current I

SUPPLY CURRENT

Supply Current I

THERMAL PROTECTION

Thermal-Shutdown Threshold T

Thermal-Shutdown Hysteresis 10 °C

ESD Protection DO_ Human Body Model ±15 kV

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

V

OD1

V

OD2

V

OD3

∆V

V

OC

∆V

OZ

OFF

I

SC

LEAK

HOTSWAP

CC

SH

RL = 100Ω, Figure 1 2.0

RL = ∞, Figure 1 3.6

RL = 3.9kΩ (for compliance with V.11),
Figure 1

RL = 100Ω (Note 2) -0.4 +0.4 V

OD

RL = 100Ω, Figure 1 3 V

RL = 100Ω (Note 2) -0.4 +0.4 V

OC

V

= VCC or GND, driver disabled ±10 µA

OUT

VCC = 0V, V

V

= 0V, VIN = VCC or GND

OUT

(Note 3)

IH

IL

EN, EN, EN1&2, EN3&4 (Note 4) ±200 µA

No load 100 µA

= 3V or 6V 20 µA

OUT

3.6

-150 mA

2.0 V

0.4 V

±2 µA

160 °C

V

MAX3030E–MAX3033E

±15kV ESD-Protected, 3.3V Quad

RS-422 Transmitters

_______________________________________________________________________________________ 3

SWITCHING CHARACTERISTICS—MAX3030E, MAX3032E

(3V ≤ VCC≤ 3.6V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at VCC= +3.3V and TA= +25°C.)

SWITCHING CHARACTERISTICS—MAX3031E, MAX3033E

(3V ≤ VCC≤ 3.6V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at VCC= +3.3V and TA= +25°C.)

Driver Propagation Delay
Low to High

Driver Propagation Delay
High to Low

Differential Transition Time, Low
to High

Differential Transition Time, High
to Low

Differential Skew (Same Channel)
|t

DPLH

Skew Driver to Driver
(Same Device)

Skew Part to Part t

Maximum Data Rate 20 Mbps

Driver Enable to Output High t

Driver Enable to Output Low t

Driver Disable Time from Low t

Driver Disable Time from High t

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

- t

|

DPHL

t

DPLH

RL = 100Ω, CL = 50pF, Figures 2, 3 8 16 ns

t

DPHL

t

R

RL = 100Ω, CL = 50pF (10% to 90%),

t

t

SK1

t

SK2

SK3

DZH

DZL

DLZ

DHZ

Figures 2, 3

F

RL = 100Ω, CL = 50pF, VCC = 3.3V ±2 ns

RL = 100Ω, CL = 50pF, VCC = 3.3V,

MAX

=

+5°C

∆T

S2 closed, RL = 500Ω, CL = 50pF,
Figures 4, 5

S1 closed, RL = 500Ω, CL = 50pF,
Figures 4, 5

S1 closed, RL = 500Ω, CL = 50pF,
Figures 4, 5

S2 closed, RL = 500Ω, CL = 50pF,
Figures 4, 5

10 ns

5ns

50 ns

50 ns

50 ns

50 ns

Driver Propagation Delay
Low to High

Driver Propagation Delay
High to Low

Differential Transition Time,
Low to High

Differential Transition Time,
High to Low

Differential Skew (Same Channel)
|t

DPLH

Skew Driver to Driver
(Same Device)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

- t

|

DPHL

t

DPLH

RL = 100Ω, CL = 50pF, Figures 2, 3 40 70 ns

t

DPHL

t

R

RL = 100Ω, CL = 50pF (10% to 90%),
Figures 2, 3

F

RL = 100Ω, CL = 50pF, VCC = 3.3V ±10 ns

t

SK1

t

SK2

t

15 50 ns

MAX3030E–MAX3033E

±15kV ESD-Protected, 3.3V Quad
RS-422 Transmitters

4 _______________________________________________________________________________________

SWITCHING CHARACTERISTICS—MAX3031E, MAX3033E (continued)

(3V ≤ VCC≤ 3.6V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at VCC= +3.3V and TA= +25°C.)

Note 1: All currents into the device are positive; all currents out of the device are negative. All voltages are referenced to device

ground, unless otherwise noted.

Note 2: ∆V

OD

and ∆VOCare the changes in VODand VOC, respectively, when DI changes state.

Note 3: Only one output shorted at a time.
Note 4: This input current is for the hot-swap enable (EN_, EN, EN) inputs and is present until the first transition only. After the first

transition, the input reverts to a standard high-impedance CMOS input with input current I

LEAK

.

DIFFERENTIAL OUTPUT VOLTAGE

vs. OUTPUT CURRENT

MAX3030E toc01

OUTPUT CURRENT (mA)

DIFFERENTIAL OUTPUT VOLTAGE (V)

906030

1

2

3

4

0

0 120

TA = 0°C

TA = +25°C

TA = +85°C

OUTPUT CURRENT

vs. TRANSMITTER OUTPUT LOW VOLTAGE

MAX3030E toc02

OUTPUT LOW VOLTAGE (V)

OUTPUT CURRENT (mA)

321

50

100

150

200

0

04

OUTPUT CURRENT

vs. TRANSMITTER OUTPUT HIGH VOLTAGE

MAX3030E toc03

OUTPUT HIGH VOLTAGE (V)

OUTPUT CURRENT (mA)

321

25

50

75

100

125

150

0

04

Typical Operating Characteristics

(VCC= +3.3V and TA= +25°C, unless otherwise noted.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Skew Part to Part t

Maximum Data Rate 2 Mbps

Driver Enable to Output High t

Driver Enable to Output Low t

Driver Disable Time from Low t

Driver Disable Time from High t

SK3

DZH

DZL

DLZ

DHZ

RL = 100Ω, CL = 50pF, VCC = 3.3V,

MAX

=

+5°C

∆T

S2 closed, RL = 500Ω, CL = 50pF,
Figures 4, 5

S1 closed, RL = 500Ω, CL = 50pF,
Figures 4, 5

S1 closed, RL = 500Ω, CL = 50pF,
Figures 4, 5

S2 closed, RL = 500Ω, CL = 50pF,
Figures 4, 5

18 ns

100 ns

100 ns

150 ns

150 ns

MAX3030E–MAX3033E

±15kV ESD-Protected, 3.3V Quad

RS-422 Transmitters

_______________________________________________________________________________________ 5

L

L

Typical Operating Characteristics (continued)

(VCC= +3.3V and TA= +25°C, unless otherwise noted.)

SUPPLY CURRENT

100

DRIVERS ENABLED

80

60

40

SUPPLY CURRENT (µA)

20

0

04

TA = +85°C

TA = +25°C

TA = 0°C

321

SUPPLY VOLTAGE (V)

MAX3030E toc04

MAX3030E/MAX3032E

SUPPLY CURRENT vs. DATA RATE

130

ALL FOUR TRANSMITTERS
LOADED AND SWITCHING

= 100Ω, CL = 200pF

R

vs. SUPPLY VOLTAGE

L

120

110

100

SUPPLY CURRENT (mA)

90

MAX3030E toc07

SUPPLY CURRENT vs. DATA RATE

30

NO RESISTIVE LOAD, CL = 200pF,
ALL FOUR

25

TRANSMITTERS
SWITCHING

20

15

10

SUPPLY CURRENT (mA)

5

0

0.1k 100M

SUPPLY CURRENT vs. DATA RATE

100

ALL FOUR TRANSMITTERS
LOADED AND SWITCHING

= 100Ω, CL = 200pF

R

L

97

94

SUPPLY CURRENT (mA)

91

MAX3030E/MAX3032E

DATA RATE (bps)

MAX3031E/MAX3033E

MAX3031E/MAX3033E

SUPPLY CURRENT vs. DATA RATE

2.5
NO RESISTIVE LOAD, CL = 200pF,

ALL FOUR
TRANSMITTERS

MAX3030E toc05

10M1M100k10k1k

2.0
SWITCHING

1.5

1.0

SUPPLY CURRENT (mA)

0.5

0

0.1k 10M
DATA RATE (bps)

1M100k10k1k

MAX3030E

DRIVER PROPAGATION DELAY

(LOW TO HIGH)

MAX3030E toc08

MAX3030E toc09

MAX3030E toc06

DI_
1V/div

DIFFERENTIA
OUTPUT
2V/div

80

0.1k 100M
DATA RATE (bps)

10M1M100k10k1k

MAX3030E

DRIVER PROPAGATION DELAY

(HIGH TO LOW)

10ns/div

MAX3030E toc10

DIFFERENTIAL
OUTPUT
2V/div

DI_
1V/div

88

0.1k 10M
DATA RATE (bps)

1M100k10k1k

MAX3031E

DRIVER PROPAGATION DELAY

(LOW TO HIGH)

20ns/div

MAX3030E toc11

DI_
1V/div

DIFFERENTIAL
OUTPUT
2V/div

10ns/div

MAX3031E

DRIVER PROPAGATION DELAY

(HIGH TO LOW)

20ns/div

MAX3030E toc12

DIFFERENTIA
OUTPUT
2V/div

DI_
1V/div