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参数资料
型号： MAX3490ECSA-T
厂商： Maxim Integrated Products
文件页数： 9/16页
文件大小： 0K
描述： IC TXRX RS485/RS422 10MBPS 8SOIC
产品培训模块： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装： 2,500
类型： 收发器
驱动器/接收器数： 1/1
规程： RS422，RS485
电源电压： 3 V ~ 3.6 V
安装类型： 表面贴装
封装/外壳： 8-SOIC（0.154"，3.90mm 宽）
供应商设备封装： 8-SOIC
包装： 带卷 (TR)
MAX3483E/MAX3485E/MAX3486E/MAX3488E/MAX3490E/MAX3491E
3.3V-Powered, ±15kV ESD-Protected, 12Mbps and
Slew-Rate-Limited True RS-485/RS-422 Transceivers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(VCC = +3.3V ±0.3V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°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.
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 SO (derate 5.88mW/°C above +70°C)..................471mW
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) .....727mW
14-Pin SO (derate 8.33mW/°C above +70°C)................667mW
14-Pin Plastic DIP (derate 10mW/°C above +70°C) ......800mW
Operating Temperature Ranges
MAX34_ _ EC_ _ ...................................................0°C to +70°C
MAX34_ _ EE_ _.................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
DE = 0,
VCC = 0 or 3.6V
DE = 0, RE = VCC,
VCC = 0 or 3.6V, MAX3491E
DE = 0, RE = 0,
VCC = 0 or 3.6V, MAX3491E
k
12
RIN
Receiver Input Resistance
A
±1
IOZR
Three-State (High-Impedance)
Output Current at Receiver
V
0.4
VOL
Receiver Output Low Voltage
V
VCC - 0.4
VOH
Receiver Output High Voltage
mV
50
VTH
Receiver Input Hysteresis
V
-0.2
0.2
VTH
Receiver Differential
Threshold Voltage
A
-1
IO
Output Leakage (Y, Z)
in Shutdown Mode
1
A
-20
IO
Output Leakage (Y, Z)
V
0.2
VOD
Change in Magnitude of Driver
Differential Output Voltage for
Complementary Output States
(Note 1)
V
1.5
VOD
2.0
Differential Driver Output
20
mA
-0.8
IIN2
Input Current (A, B)
1.0
A
±2
IIN1
Logic Input Current
V
3
VOC
Driver Common-Mode Output
Voltage
V
0.2
VOC
Change in Magnitude of
Common-Mode Output Voltage
(Note 1)
V
2.0
VIH
Input High Voltage
V
0.8
VIL
Input Low Voltage
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
RL = 54 or 100, Figure 4
-7V
≤ VCM ≤ 12V
RL = 54 (RS-485), Figure 4
VCC = 3.6V, 0 ≤ VOUT ≤ VCC
RL = 100 (RS-422), Figure 4
IOUT = 2.5mA, VID = 200mV, Figure 6
IOUT = -1.5mA, VID = 200mV, Figure 6
VCM = 0
VOUT = 12V
VIN = -7V
-7V
≤ VCM ≤ 12V
VOUT = -7V
VIN = 12V
DE, DI, RE
RL = 54 or 100, Figure 4
DE, DI, RE
VOUT = 12V
DE, DI, RE
VOUT = -7V
CONDITIONS
RL = 60 (RS-485), VCC = 3.3V, Figure 5
1.5
mA
1.1
2.2
ICC
Supply Current
No load,
DI = 0 or VCC
DE = VCC, RE = 0 or VCC
DE = 0, RE = 0
0.95
1.9
V
3.0
3.6
VCC
Supply Voltage Range
A
0.002
1
ISHDN
Supply Current in Shutdown Mode
DE = 0, RE = VCC, DI = VCC or 0
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