MAX3467 datasheet(4/13 Pages) MAXIM

Part #	MAX3467

Description	5V, Fail-Safe, 40Mbps, Profibus RS-485/RS-422 Transceivers

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Manufacturer	MAXIM [Maxim Integrated Products]

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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:

ΔVOD and ΔVOC are the changes in VOD and VOC, respectively, when the DI input changes state.

Note 3: The short-circuit output current applies to peak current just prior to foldback-current limiting; the short-circuit foldback output

current applies during current limiting to allow a recovery from bus contention.

Note 4: Capacitive load includes test probe and fixture capacitance.

Note 5: Shutdown is enabled by bringing RE high and DE low or by bringing SHDN high. 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 800ns, the device

is guaranteed to have entered shutdown.

+5V, Fail-Safe, 40Mbps, Profibus RS-485/

RS-422 Transceivers

4

_______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(VCC = +5V ±5%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Receiver Output Skew

|tPLH -

tPHL|

Figure 10, CL = 15pF, RXP = GND or open

(Note 4)

2ns

Receiver Enable to Output Low

tZL

Figures 8 and 11, RL = 1k

Ω, CL = 15pF,

S1 closed (Note 4)

30

ns

Receiver Enable to Output High

tZH

Figures 8 and 11, RL = 1k

Ω, CL = 15pF,

S2 closed (Note 4)

30

ns

Receiver Disable Time from Low

tLZ

Figures 8 and 11, RL = 1k

Ω, CL = 15pF,

S1 closed (Note 4)

30

ns

Receiver Disable Time from High

tHZ

Figures 8 and 11, RL = 1k

Ω, CL = 15pF,

S2 closed (Note 4)

30

ns

Time to Shutdown

tSHDN

(Note 5)

50

800

ns

Driver Enable from Shutdown to

Output High

tZH (SHDN)

Figures 8 and 9, RL = 500

Ω, CL = 50pF,

S2 closed (Note 5)

4µs

Driver Enable from Shutdown to

Output Low

tZL (SHDN)

Figures 8 and 9, RL = 500

Ω, CL = 50pF,

S1 closed (Note 5)

4µs

Receiver Enable from Shutdown to

Output High

tZH (SHDN)

Figures 8 and 11, RL = 1k

Ω, CL = 15pF,

S2 closed (Notes 4, 5)

4µs

Receiver Enable from Shutdown to

Output Low

tZL (SHDN)

Figures 8 and 11, RL = 1k

Ω, CL = 15pF,

S1 closed (Notes 4, 5)

4µs

NO-LOAD SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (

°C)

60

40

-20

0

20

2.15

2.20

2.25

2.30

2.35

2.40

2.45

2.50

2.10

-40

80

DE = VCC

DE = GND

OUTPUT CURRENT

vs. RECEIVER OUTPUT LOW VOLTAGE

OUTPUT LOW VOLTAGE (V)

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

10

20

30

40

50

60

0

5.0

OUTPUT CURRENT

vs. RECEIVER OUTPUT HIGH VOLTAGE

OUTPUT HIGH VOLTAGE (V)

4

3

2

1

5

10

15

20

25

30

35

0

05

Typical Operating Characteristics

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

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