MAX3292EPD datasheet(3/16 Pages) MAXIM

Part #	MAX3292EPD

Description	RS-485/RS-422 Transceivers with Preemphasis for High-Speed, Long-Distance Communication

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Manufacturer	MAXIM [Maxim Integrated Products]

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RS-485/RS-422 Transceivers with Preemphasis

for High-Speed, Long-Distance Communication

_______________________________________________________________________________________

3

DC ELECTRICAL CHARACTERISTICS (continued)

(Typical Operating Circuit, VCC = +5V ±5%, RPSET = 0 (MAX3292), VCC = VCCD (MAX3292), TA = TMIN to TMAX, unless otherwise

noted. Typical values are at VCC = +5V and TA = +25°C.) (Note 1)

SWITCHING CHARACTERISTICS

(Typical Operating Circuit, VCC = +5V ±5%, RPSET = 0 (MAX3292), VCC = VCCD (MAX3292), TA = +25°C, unless otherwise noted.

Typical values are at VCC = +5V and TA = +25°C.)

-7V

≤ VCM ≤ +12V

RE = VCC, DE = GND, VY = VZ = 0 to VCC or

floating

RE = GND, DE = VCC

0

≤ VO ≤ VCC

-7V

≤ VCM ≤ +12V

0

≤ VRO ≤ VCC

CONDITIONS

mV

-200

200

VTH

Receiver Differential

Threshold Voltage

µA

0.1

1

ISHDN

Supply Current in Shutdown

Mode

mA

2.0

3.0

ICC + ICCD

No-Load Supply Current

µA

0.1

±1

IOZR

Three-State Output Current at

Receiver

k

Ω

48

RIN

Receiver Input Resistance

mA

±15

±95

IOSR

Receiver Output Short-Circuit

Current

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

VA = VB = 0

mV

35

∆VTH

Receiver Input Hysteresis

IO = -4mA, VA - VB = VTH

V

3.5

VOH

Receiver Output High Voltage

IO = 4mA, VA - VB = -VTH

V

0.4

VOL

Receiver Output Low Voltage

DE = GND,

VCC = GND or 5.25V

µA

-150

IA, B

250

Input Current (A and B)

VIN = +12V

VIN = -7V

Driver Differential Output

Rise or Fall Time

Figures 3 and 5, RDIFF = 54Ω,

CL1 = CL2 = 50pF

ns

44

65

tDPHL

Driver Propagation Delay

CONDITIONS

tHL

12

Figures 3 and 5, RDIFF = 54Ω,

CL1 = CL2 = 50pF

ns

tLH

Differential Driver Output

Skew

 tDPLH - tDPHL

Figures 3 and 10, RDIFF = 54Ω,

CL1 = CL2 = 50pF

ns

30

tPTND

Preemphasis Voltage Level to

Normal Voltage Level Delay

tDSKEW

Figures 3 and 5, RDIFF = 54Ω,

CL1 = CL2 = 50pF

38

ns

Mbps

10

fMAX

Maximum Data Rate

41

65

tDPLH

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

RECEIVER

SUPPLY CURRENT

Driver Preemphasis Interval

tPRE

80

100

120

Figures 3 and 10,

RDIFF = 54Ω,

CL1 = CL2 = 50pF

ns

0.75

1

1.25

µs

MAX3292,

RPSET = 523kΩ

MAX3291/MAX3292,

RPSET = 0

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