MAX3085E datasheet(4/20 Pages) MAXIM

4 / 20 page

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

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

_______________________________________________________________________________________

SWITCHING CHARACTERISTICS—MAX3080E/MAX3081E/MAX3082E, and MAX3089E

with SRL = Unconnected

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

500

2030

2600

tDPHL

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

Driver Disable Time from Low

tDLZ

100

Driver Enable to Output Low

tDZL

3500

Driver Enable to Output High

tDZH

3500

Maximum Data Rate

fMAX

115

kbps

Driver Disable Time from High

tDHZ

100

Receiver Input to Output

tRPLH,

tRPHL

127

200

| tRPLH - tRPHL | Differential

Receiver Skew

tRSKD

3±30

Receiver Enable to Output Low

tRZL

Driver Output Skew

| tDPLH - tDPHL |

Driver Input-to-Output

tDPLH

500

2030

2600

tDSKEW

-3

±200

Driver Rise or Fall Time

tDR, tDF

667

1320

2500

Receiver Enable to Output High

tRZH

Receiver Disable Time from Low

tRLZ

Receiver Disable Time from

High

tRHZ

Time to Shutdown

tSHDN

200

600

Driver Enable from Shutdown to

Output High

tDZH(SHDN)

6000

Driver Enable from Shutdown to

Output Low

tDZL(SHDN)

6000

Receiver Enable from Shutdown-

to-Output High

tRZH(SHDN)

3500

Receiver Enable from Shutdown-

to-Output Low

tRZL(SHDN)

3500

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; | VID | ≥ 2.0V;

rise and fall time of VID

≤ 15ns

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

(Note 5)

Figures 11 and 13; | VID | ≥ 2.0V;

rise and fall time of VID

≤ 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, RDIFF = 54

Ω,

CL1 = CL2 = 100pF

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

Figures 7 and 9, RDIFF = 54

Ω,

CL1 = CL2 = 100pF

Figures 7 and 9, RDIFF = 54

Ω,

CL1 = CL2 = 100pF

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