MAX1487E Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
MAX1487E
Maxim Integrated
MAX1487E Datasheet PDF : 16 Pages
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±15kV ESD-Protected, Slew-Rate-Limited,
Low-Power, RS-485/RS-422 Transceivers
ABSOLUTE MAXIMUM RATINGS
Supply
Control
Voltage (VCC)
Input Voltage
.(.–R—..E.–..,..D..E..)........................................-.0....5..V...t.o...(.V..C...C...+...0...152VV)
Driver Input Voltage (DI).............................-0.5V to (VCC + 0.5V)
Driver Output Voltage (Y, Z; 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
Operating Temperature Ranges
MAX4_ _C_ _/MAX1487EC_ A .............................0°C to +70°C
MAX4_ _E_ _/MAX1487EE_ A...........................-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 = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
Differential Driver Output (no load)
Differential Driver Output
(with load)
VOD1
VOD2
R = 50Ω (RS-422)
R = 27Ω (RS-485), Figure 8
Change in Magnitude of Driver
Differential Output Voltage for
Complementary Output States
∆VOD R = 27Ω or 50Ω, Figure 8
Driver Common-Mode Output
Voltage
VOC R = 27Ω or 50Ω, Figure 8
Change in Magnitude of Driver
Common-Mode Output Voltage
for Complementary Output States
Input High Voltage
Input Low Voltage
Input Current
∆VOD
VIH
VIL
IIN1
Input Current
(A, B)
IIN2
Receiver Differential Threshold
Voltage
VTH
R = 27Ω or 50Ω, Figure 8
DE, DI, –R—E–
DE, DI, –R—E–
DE, DI, –R—E–
DE = 0V;
VCC = 0V or 5.25V,
all devices except
MAX487E/MAX1487E
MAX487E/MAX1487E,
DE = 0V, VCC = 0V or 5.25V
VIN = 12V
VIN = -7V
VIN = 12V
VIN = -7V
-7V ≤ VCM ≤ 12V
Receiver Input Hysteresis
Receiver Output High Voltage
∆VTH
VOH
VCM = 0V
IO = -4mA, VID = 200mV
Receiver Output Low Voltage
VOL IO = 4mA, VID = -200mV
Three-State (high impedance)
Output Current at Receiver
IOZR 0.4V ≤ VO ≤ 2.4V
MIN TYP MAX UNITS
5
V
2
V
1.5
5
0.2
V
3
V
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
-7V ≤ VCM ≤ 12V, all devices except
MAX487E/MAX1487E
12
kΩ
Receiver Input Resistance
RIN
-7V ≤ VCM ≤ 12V, MAX487E/MAX1487E
48
kΩ
2 _______________________________________________________________________________________
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