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MAX491 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Slew-Rate-Limited RS-485/RS-422 Transceivers - Maxim

भाग संख्या MAX491
समारोह Slew-Rate-Limited RS-485/RS-422 Transceivers
मैन्युफैक्चरर्स Maxim 
लोगो Maxim लोगो 
पूर्व दर्शन
1 Page
		
<?=MAX491?> डेटा पत्रक पीडीएफ

MAX491 pdf
MAX481/MAX483/MAX485/
MAX487–MAX491/MAX1487
Low-Power, Slew-Rate-Limited
RS-485/RS-422 Transceivers
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_ _M_/MAX1487MJA .............................-55°C to +125°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 = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)
PARAMETER
SYMBOL
Differential Driver Output (no load) VOD1
Differential Driver Output
(with load)
VOD2
Change in Magnitude of Driver
Differential Output Voltage for
Complementary Output States
Driver Common-Mode Output
Voltage
Change in Magnitude of Driver
Common-Mode Output Voltage
for Complementary Output States
ΔVOD
VOC
ΔVOD
Input High Voltage
Input Low Voltage
Input Current
VIH
VIL
IIN1
Input Current
(A, B)
IIN2
Receiver Differential Threshold
Voltage
Receiver Input Hysteresis
Receiver Output High Voltage
Receiver Output Low Voltage
Three-State (high impedance)
Output Current at Receiver
VTH
ΔVTH
VOH
VOL
IOZR
CONDITIONS
R = 50Ω (RS-422)
R = 27Ω (RS-485), Figure 4
R = 27Ω or 50Ω, Figure 4
R = 27Ω or 50Ω, Figure 4
R = 27Ω or 50Ω, Figure 4
DE, DI, RE
DE, DI, RE
DE, DI, RE
DE = 0V;
VCC = 0V or 5.25V,
all devices except
MAX487/MAX1487
MAX487/MAX1487,
DE = 0V, VCC = 0V or 5.25V
-7V VCM 12V
VCM = 0V
IO = -4mA, VID = 200mV
IO = 4mA, VID = -200mV
VIN = 12V
VIN = -7V
VIN = 12V
VIN = -7V
0.4V VO 2.4V
MIN TYP MAX UNITS
5V
2
V
1.5 5
0.2 V
3V
0.2 V
2.0 V
0.8 V
±2 µA
1.0
mA
-0.8
0.25
mA
-0.2
-0.2 0.2 V
70 mV
3.5 V
0.4 V
±1 µA
Receiver Input Resistance
-7V VCM 12V, all devices except
MAX487/MAX1487
RIN
-7V VCM 12V, MAX487/MAX1487
12
48
kΩ
kΩ
2 Maxim Integrated

विन्यास 17 पेज
डाउनलोड[ MAX491 Datasheet.PDF ]


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