RS-422/RS-485 Interface IC

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MAX304x 5V Quad RS-485/RS-422 Transmitters

Analog Devices Inc. MAX304x 5V Quad RS-485/RS-422 Transmitters are designed for digital data transmission over twisted-pair balanced lines. All transmitter outputs are protected to ±10kV using the Human Body Model. In addition, the MAX304x withstands ±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.

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Part #

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3043CSE+
Analog Devices / Maxim Integrated
1: $14.04
148In Stock

Mfr. Part #
MAX3043CSE+

Mouser Part #
700-MAX3043CSE

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

148In Stock

$14.04

$10.93

$9.68

$9.29

View

Min.: 1
Mult.: 1

MAX3043

SMD/SMT

SO-Narrow-16

Driver

4 Driver

0 Receiver

250 kb/s

5.25 V

4.75 V

0 C

+ 70 C

Tube

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3043CUE+
Analog Devices / Maxim Integrated
1: $14.04
119In Stock

Mfr. Part #
MAX3043CUE+

Mouser Part #
700-MAX3043CUE

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

119In Stock

$14.04

$10.93

$9.33

$9.00

View

Min.: 1
Mult.: 1

MAX3043

SMD/SMT

TSSOP-16

Driver

4 Driver

0 Receiver

250 kb/s

5 V

0 C

+ 70 C

Tube

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3043ESE+
Analog Devices / Maxim Integrated
1: $14.04
62In Stock

Mfr. Part #
MAX3043ESE+

Mouser Part #
700-MAX3043ESE

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

62In Stock

$14.04

$10.93

$9.68

$9.29

View

Min.: 1
Mult.: 1

MAX3043

SMD/SMT

SO-Narrow-16

Driver

4 Driver

0 Receiver

250 kb/s

5 V

- 40 C

+ 85 C

Tube

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3043EUE+
Analog Devices / Maxim Integrated
1: $14.53
110In Stock

Mfr. Part #
MAX3043EUE+

Mouser Part #
700-MAX3043EUE

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

110In Stock

$14.53

$11.33

$9.68

$9.66

View

Min.: 1
Mult.: 1

MAX3043

SMD/SMT

TSSOP-16

Driver

4 Driver

0 Receiver

250 kb/s

5 V

- 40 C

+ 85 C

Tube

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3044EUE+
Analog Devices / Maxim Integrated
1: $14.31
76In Stock

Mfr. Part #
MAX3044EUE+

Mouser Part #
700-MAX3044EUE

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

76In Stock

$14.31

$11.16

$10.18

$9.00

View

Min.: 1
Mult.: 1

MAX3044

SMD/SMT

TSSOP-16

Driver

4 Driver

0 Receiver

2.5 Mb/s

5.25 V

4.75 V

- 40 C

+ 85 C

Tube

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3045BCSE+
Analog Devices / Maxim Integrated
1: $14.04
98In Stock

Mfr. Part #
MAX3045BCSE+

Mouser Part #
700-MAX3045BCSE

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

98In Stock

$14.04

$10.96

$10.17

$9.27

View

Min.: 1
Mult.: 1

MAX3045

SMD/SMT

SO-Narrow-16

Driver

4 Driver

0 Receiver

20 Mb/s

5.25 V

4.75 V

0 C

+ 70 C

Tube

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3045BCUE+
Analog Devices / Maxim Integrated
1: $14.04
155In Stock
192Expected 2026-08-13

Mfr. Part #
MAX3045BCUE+

Mouser Part #
700-MAX3045BCUE

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

155In Stock

192Expected 2026-08-13

$14.04

$10.93

$9.33

$9.00

View

Min.: 1
Mult.: 1

MAX3045

SMD/SMT

TSSOP-16

Driver

4 Driver

0 Receiver

20 Mb/s

5 V

0 C

+ 70 C

Tube

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3045BEWE+
Analog Devices / Maxim Integrated
1: $14.04
71In Stock

Mfr. Part #
MAX3045BEWE+

Mouser Part #
700-MAX3045BEWE

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

71In Stock

$14.04

$10.93

$9.75

$9.14

View

Min.: 1
Mult.: 1

MAX3045

SMD/SMT

SO-Wide-16

Driver

4 Driver

0 Receiver

20 Mb/s

5 V

- 40 C

+ 85 C

Tube

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3040CSE+T
Analog Devices / Maxim Integrated
2,500: $7.99
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
MAX3040CSE+T

Mouser Part #
700-MAX3040CSET

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$7.99

Min.: 2,500
Mult.: 2,500

: 2,500

MAX3040

SMD/SMT

SO-Narrow-16

Driver

250 kb/s

5 V

0 C

+ 70 C

Reel

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3041CSE+T
Analog Devices / Maxim Integrated
2,500: $8.55
Non-Stocked Lead-Time 15 Weeks

Mfr. Part #
MAX3041CSE+T

Mouser Part #
700-MAX3041CSET

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

Reel

$8.55

Min.: 2,500
Mult.: 2,500

: 2,500

MAX3041

SMD/SMT

SO-Narrow-16

Driver

2.5 Mb/s

5.25 V

4.75 V

0 C

+ 70 C

Reel

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3041CUE+T
Analog Devices / Maxim Integrated
2,500: $8.22
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
MAX3041CUE+T

Mouser Part #
700-MAX3041CUET

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$8.22

Min.: 2,500
Mult.: 2,500

: 2,500

MAX3041

SMD/SMT

TSSOP-16

Driver

4 Driver

0 Receiver

2.5 Mb/s

5.25 V

4.75 V

0 C

+ 70 C

Reel

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3041ESE+T
Analog Devices / Maxim Integrated
2,500: $7.99
Non-Stocked Lead-Time 15 Weeks

Mfr. Part #
MAX3041ESE+T

Mouser Part #
700-MAX3041ESET

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

Reel

$7.99

Min.: 2,500
Mult.: 2,500

: 2,500

MAX3041

SMD/SMT

SO-Narrow-16

Driver

2.5 Mb/s

5.25 V

4.75 V

- 40 C

+ 85 C

Reel

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3041EUE+T
Analog Devices / Maxim Integrated
2,500: $9.43
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
MAX3041EUE+T

Mouser Part #
700-MAX3041EUET

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$9.43

Min.: 2,500
Mult.: 2,500

: 2,500

MAX3041

SMD/SMT

TSSOP-16

Driver

4 Driver

0 Receiver

2.5 Mb/s

5.25 V

4.75 V

- 40 C

+ 85 C

Reel

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3042BCUE+T
Analog Devices / Maxim Integrated
2,500: $7.98
Non-Stocked Lead-Time 17 Weeks

Mfr. Part #
MAX3042BCUE+T

Mouser Part #
700-MAX3042BCUET

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

Non-Stocked Lead-Time 17 Weeks

Reel

$7.98

Min.: 2,500
Mult.: 2,500

: 2,500

MAX3042

SMD/SMT

TSSOP-16

Driver

20 Mb/s

5.25 V

4.75 V

0 C

+ 70 C

Reel

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3042BCWE+T
Analog Devices / Maxim Integrated
1,000: $8.76
Non-Stocked Lead-Time 16 Weeks

Mfr. Part #
MAX3042BCWE+T

Mouser Part #
700-MAX3042BCWE+T

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

$8.76

$8.55

Quote

Min.: 1,000
Mult.: 1,000

: 1,000

MAX3042

SMD/SMT

SO-Wide-16

Driver

20 Mb/s

5.25 V

4.75 V

0 C

+ 70 C

Reel

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3042BEUE+T
Analog Devices / Maxim Integrated
2,500: $8.55
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
MAX3042BEUE+T

Mouser Part #
700-MAX3042BEUET

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$8.55

Min.: 2,500
Mult.: 2,500

: 2,500

MAX3042

SMD/SMT

TSSOP-16

Driver

4 Driver

0 Receiver

20 Mb/s

5.25 V

4.75 V

- 40 C

+ 85 C

Reel

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3042BEWE+T
Analog Devices / Maxim Integrated
1,000: $8.67
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
MAX3042BEWE+T

Mouser Part #
700-MAX3042BEWE+T

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$8.67

$8.42

Quote

Min.: 1,000
Mult.: 1,000

: 1,000

MAX3042

SMD/SMT

SO-Wide-16

Driver

20 Mb/s

5 V

- 40 C

+ 85 C

Reel

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3043CSE+T
Analog Devices / Maxim Integrated
2,500: $8.55
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
MAX3043CSE+T

Mouser Part #
700-MAX3043CSET

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$8.55

Min.: 2,500
Mult.: 2,500

: 2,500

MAX3043

SMD/SMT

SO-Narrow-16

Driver

250 kb/s

5.25 V

4.75 V

0 C

+ 70 C

Reel

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3043CUE+T
Analog Devices / Maxim Integrated
2,500: $8.42
Non-Stocked Lead-Time 15 Weeks

Mfr. Part #
MAX3043CUE+T

Mouser Part #
700-MAX3043CUET

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

Reel

$8.42

Quote

Min.: 2,500
Mult.: 2,500

: 2,500

MAX3043

SMD/SMT

TSSOP-16

Driver

4 Driver

0 Receiver

250 kb/s

5.25 V

4.75 V

0 C

+ 70 C

Reel

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3043ESE+T
Analog Devices / Maxim Integrated
2,500: $8.55
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
MAX3043ESE+T

Mouser Part #
700-MAX3043ESET

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$8.55

Min.: 2,500
Mult.: 2,500

: 2,500

MAX3043

SMD/SMT

SO-Narrow-16

Driver

4 Driver

0 Receiver

250 kb/s

5.25 V

4.75 V

- 40 C

+ 85 C

Reel

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3044CSE+T
Analog Devices / Maxim Integrated
2,500: $8.55
Non-Stocked Lead-Time 15 Weeks

Mfr. Part #
MAX3044CSE+T

Mouser Part #
700-MAX3044CSET

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

Reel

$8.55

Min.: 2,500
Mult.: 2,500

: 2,500

MAX3044

SMD/SMT

SO-Narrow-16

Driver

2.5 Mb/s

5 V

0 C

+ 70 C

Reel

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3044ESE+T
Analog Devices / Maxim Integrated
2,500: $8.42
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
MAX3044ESE+T

Mouser Part #
700-MAX3044ESET

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$8.42

Quote

Min.: 2,500
Mult.: 2,500

: 2,500

MAX3044

SMD/SMT

SO-Narrow-16

Driver

4 Driver

0 Receiver

2.5 Mb/s

5 V

- 40 C

+ 85 C

Reel

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3044EUE+T
Analog Devices / Maxim Integrated
2,500: $8.42
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
MAX3044EUE+T

Mouser Part #
700-MAX3044EUET

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$8.42

Quote

Min.: 2,500
Mult.: 2,500

: 2,500

MAX3044

SMD/SMT

TSSOP-16

Driver

2.5 Mb/s

5 V

- 40 C

+ 85 C

Reel

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3045BCSE+T
Analog Devices / Maxim Integrated
2,500: $8.42
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
MAX3045BCSE+T

Mouser Part #
700-MAX3045BCSET

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$8.42

Quote

Min.: 2,500
Mult.: 2,500

: 2,500

MAX3045

SMD/SMT

SOIC-Narrow-16

Driver

20 Mb/s

5.25 V

4.75 V

0 C

+ 70 C

Reel

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

MAX3045BCUE+T
Analog Devices / Maxim Integrated
2,500: $8.42
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
MAX3045BCUE+T

Mouser Part #
700-MAX3045BCUET

Analog Devices / Maxim Integrated

RS-422/RS-485 Interface IC 10kV ESD-Protected, Quad 5V RS-485/RS-422 Transmitters

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$8.42

Quote

Min.: 2,500
Mult.: 2,500

: 2,500

MAX3045

SMD/SMT

TSSOP-16

Driver

4 Driver

0 Receiver

20 Mb/s

5.25 V

4.75 V

0 C

+ 70 C

Reel

MAX304x 5V Quad RS-485/RS-422 Transmitters

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