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MAX481 Datasheet(PDF) 2 Page - Maxim Integrated Products

Part No. MAX481
Description  Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX481 Datasheet(HTML) 2 Page - Maxim Integrated Products

 
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Low-Power, Slew-Rate-Limited
RS-485/RS-422 Transceivers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC) .............................................................12V
Control Input Voltage (RE, DE)...................-0.5V to (VCC + 0.5V)
Driver Input Voltage (DI).............................-0.5V to (VCC + 0.5V)
Driver Output Voltage (A, B)...................................-8V to +12.5V
Receiver Input Voltage (A, B).................................-8V to +12.5V
Receiver Output Voltage (RO).....................-0.5V to (VCC +0.5V)
Continuous Power Dissipation (TA = +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ....727mW
14-Pin Plastic DIP (derate 10.00mW/°C above +70°C) ..800mW
8-Pin SO (derate 5.88mW/°C above +70°C).................471mW
14-Pin SO (derate 8.33mW/°C above +70°C)...............667mW
8-Pin µMAX (derate 4.1mW/°C above +70°C) ..............830mW
8-Pin CERDIP (derate 8.00mW/°C above +70°C).........640mW
14-Pin CERDIP (derate 9.09mW/°C above +70°C).......727mW
Operating Temperature Ranges
MAX4_ _C_ _/MAX1487C_ A ...............................0°C to +70°C
MAX4_ _E_ _/MAX1487E_ A .............................-40°C to +85°C
MAX4_ _MJ_/MAX1487MJA ...........................-55°C to +125°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
DC ELECTRICAL CHARACTERISTICS
(VCC = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)
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.
V
VIN = -7V
VIN = 12V
VIN = -7V
VIN = 12V
Input Current
(A, B)
IIN2
VTH
kΩ
48
-7V ≤ VCM ≤ 12V, MAX487/MAX1487
RIN
Receiver Input Resistance
-7V ≤ VCM ≤ 12V, all devices except
MAX487/MAX1487
R = 27Ω (RS-485), Figure 4
0.4V ≤ VO ≤ 2.4V
R = 50Ω (RS-422)
IO = 4mA, VID = -200mV
IO = -4mA, VID = 200mV
VCM = 0V
-7V ≤ VCM ≤ 12V
DE, DI, RE
DE, DI, RE
MAX487/MAX1487,
DE = 0V, VCC = 0V or 5.25V
DE, DI, RE
R = 27Ω or 50Ω, Figure 4
R = 27Ω or 50Ω, Figure 4
R = 27Ω or 50Ω, Figure 4
DE = 0V;
VCC = 0V or 5.25V,
all devices except
MAX487/MAX1487
CONDITIONS
kΩ
12
µA
±1
IOZR
Three-State (high impedance)
Output Current at Receiver
V
0.4
VOL
Receiver Output Low Voltage
3.5
VOH
Receiver Output High Voltage
mV
70
∆VTH
Receiver Input Hysteresis
V
-0.2
0.2
Receiver Differential Threshold
Voltage
-0.2
mA
0.25
mA
-0.8
1.0
1.5
5
VOD2
Differential Driver Output
(with load)
V
2
V
5
VOD1
Differential Driver Output (no load)
µA
±2
IIN1
Input Current
V
0.8
VIL
Input Low Voltage
V
2.0
VIH
Input High Voltage
V
0.2
∆VOD
Change in Magnitude of Driver
Common-Mode Output Voltage
for Complementary Output States
V
0.2
∆VOD
Change in Magnitude of Driver
Differential Output Voltage for
Complementary Output States
V
3
VOC
Driver Common-Mode Output
Voltage
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER


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