MAX3490ESA Просмотр технического описания (PDF) - Maxim Integrated

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производитель

MAX3490ESA

3.3V-Powered, 10Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers

Maxim Integrated 

3.3V-Powered, 10Mbps and Slew-Rate-Limited

True RS-485/RS-422 Transceivers

ABSOLUTE MAXIMUM RATINGS

Supply Voltage (VCC) ...............................................................7V

Control Input Voltage (RE, DE) ...................................-0.3V to 7V

Driver Input Voltage (DI) .............................................-0.3V to 7V

Driver Output Voltage (A, B, 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)

8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) .....727mW

8-Pin SO (derate 5.88mW/°C above +70°C)..................471mW

14-Pin Plastic DIP (derate 10mW/°C above +70°C) ......800mW

14-Pin SO (derate 8.33mW/°C above +70°C)................667mW

Operating Temperature Ranges

MAX34_ _C_ _.......................................................0°C to +70°C

MAX34_ _E_ _ ....................................................-40°C to +85°C

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

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

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.

DC ELECTRICAL CHARACTERISTICS

(VCC = 3.3V ±0.3V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C)

PARAMETER

Differential Driver Output

Change in Magnitude of Driver

Differential Output Voltage for

Complementary Output States

(Note 1)

SYMBOL

CONDITIONS

RL = 100Ω (RS-422), Figure 4

VOD RL = 54Ω (RS-485), Figure 4

RL = 60Ω (RS-485), VCC = 3.3V, Figure 5

∆VOD RL = 54Ω or 100Ω, Figure 4

MIN TYP MAX UNITS

2.0

1.5

V

1.5

0.2

V

Driver Common-Mode Output

Voltage

VOC RL = 54Ω or 100Ω, Figure 4

3

V

Change in Magnitude of

Common-Mode Output Voltage

(Note 1)

∆VOC RL = 54Ω or 100Ω, Figure 4

0.2

V

Input High Voltage

Input Low Voltage

Logic Input Current

Input Current (A, B)

Output Leakage (Y, Z)

Output Leakage (Y, Z)

in Shutdown Mode

Receiver Differential

Threshold Voltage

Receiver Input Hysteresis

Receiver Output High Voltage

Receiver Output Low Voltage

Three-State (High Impedance)

Output Current at Receiver

Receiver Input Resistance

VIH

VIL

IIN1

IIN2

IO

IO

VTH

∆VTH

VOH

VOL

IOZR

RIN

DE, DI, RE

DE, DI, RE

DE, DI, RE

DE = 0V,

VCC = 0V or 3.6V

VIN = 12V

VIN = -7V

DE = 0V, RE = 0V,

VOUT = 12V

VCC = 0V or 3.6V, MAX3491 VOUT = -7V

DE = 0V, RE = VCC,

VOUT = 12V

VCC = 0V or 3.6V, MAX3491 VOUT = -7V

-7V ≤ VCM ≤ 12V

VCM = 0V

IOUT = -1.5mA, VID = 200mV, Figure 6

IOUT = 2.5mA, VID = 200mV, Figure 6

VCC = 3.6V, 0V ≤ VOUT ≤ VCC

-7V ≤ VCM ≤ 12V

2.0

-0.2

50

VCC - 0.4

12

V

0.8

V

±2

µA

1.0

mA

-0.8

20

µA

-20

1

µA

-1

0.2

V

mV

V

0.4

V

±1

µA

kΩ

2 _______________________________________________________________________________________

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