MAX3291CPD datasheet(2/16 Pages) MAXIM

2 / 16 page

RS-485/RS-422 Transceivers with Preemphasis

for High-Speed, Long-Distance Communication

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ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

(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)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

Supply Voltage (VCC, VCCD) .................................................+6V

Control Input Voltage (RE, DE, PEE,

PSET, DI) .................................................-0.3V to (VCC + 0.3V)

Driver Output Voltage (Y, Z) ................................-7.5V to +12.5V

Receiver Input Voltage (A, B)..............................-7.5V to +12.5V

Receiver Output Voltage (RO)....................-0.3V to (VCC + 0.3V)

Continuous Power Dissipation (TA = +70°C)

14-Pin SO (derate 8.7mW/°C above +70°C).................695mW

14-Pin Plastic DIP (derate 10.0mW/°C above +70°C) ..800mW

Operating Temperature Ranges

MAX329_C_ D......................................................0°C to +70°C

MAX329_E_ D ...................................................-40°C to +85°C

Storage Temperature Range .............................-65°C to +160°C

Lead Temperature (soldering, 10sec) .............................+300°C

R = 27

Ω

DE = GND,

VCC = GND or 5.25V

VPSET = VCC

DE, DI, RE

DE, DI, RE, PEE

DE, DI, RE

CONDITIONS

2.4

VODP

Differential Driver Output with

Preemphasis

µA

-25

Output Leakage (Y and Z)

µA

110

IPSET

PSET Input Current (MAX3292)

2.4

VIH

Input High Voltage

0.8

VIL

Input Low Voltage

µA

±2

IIN

Input Current

µA

-15

-30

-45

IPEE

PEE Input Current (MAX3291)

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

Figure 1, R = 27

Ω (Note 3)

1.65

2.0

2.35

DPER

Differential Driver

Preemphasis Ratio

Figure 1, R = 27

Ω (Note 4)

0.2

∆VOD,

∆VODP

Change in Magnitude of

Differential Output Voltage

(Normal and Preemphasis)

Figure 1, R = 27

Ω

VCC / 2

VOC

Driver Common-Mode Output

Voltage (Normal and

Preemphasis)

Figure 1, R = 27

Ω (Note 5)

0.3

∆VOC

Change in Magnitude of

Common-Mode Voltage

(Normal and Preemphasis)

Figure 1, R = 27

Ω

∆VNP

Change in Magnitude of

Common-Mode Output

Voltage (Normal to

Preemphasis)

-7V

≤ VOUT ≤ +12V (Note 6)

±30

±250

IOSD

Driver Short-Circuit Output

Current

VY = VZ = +12V

VY = VZ = -7V

R = 27

Ω

Figure 1

No load (Note 2)

5.25

VOD

1.5

5.0

Differential Driver Output

PEE

3.75

DRIVER

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