MAX3085ESA datasheet(3/20 Pages) MAXIM

3 / 20 page

Fail-Safe, High-Speed (10Mbps),

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

_______________________________________________________________________________________

DC 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)

≤ VRO ≤ VCC

-7V

≤ VCM ≤ 12V

0.4V

≤ VO ≤ 2.4V

-7V

≤ VCM ≤ 12V

IO = -4mA, VID = -50mV

DE = GND, VRE = VCC

IO = 4mA, VID = -200mV

No load,

RE = DI = GND

or VCC, SRL = VCC

CONDITIONS

µA

0.001

ISHDN

Supply Current in Shutdown

Mode

µA

ICC

Supply Current

±7

±95

IOSR

Receiver Output Short-Circuit

Current

Ω

RIN

Receiver Input Resistance

µA

±1

IOZR

Three-State Output Current at

Receiver

-200

-125

-50

VTH

Receiver Differential Threshold

Voltage

∆VTH

Receiver Input Hysteresis

VCC -1.5

VOH

Receiver Output High Voltage

0.4

VOL

Receiver Output Low Voltage

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

No load,

RE = DI = GND

or VCC, SRL = GND

DE = VCC

420

800

µA

475

1000

DE = GND

430

900

375

600

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

ground unless otherwise noted.

Note 2:

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

Note 3: The SRL pin is internally biased to VCC / 2 by a 100kΩ/100kΩ resistor divider. It is guaranteed to be VCC / 2 if left

unconnected.

Note 4: Maximum current level applies to peak current just prior to foldback-current limiting; minimum current level applies during

current limiting.

RECEIVER

SUPPLY CURRENT

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