參數(shù)資料
型號： MAX1480
廠商： Maxim Integrated Products, Inc.
元件分類： 溫度/濕度傳感器
英文描述： Digital Temperature Sensor with 2-Wire Interface 8-SOIC -40 to 125
中文描述： 完成后，隔離的RS-485/RS-422數(shù)據(jù)接口
文件頁數(shù)： 2/21頁
文件大?。?/td> 487K
代理商： MAX1480
Complete, Isolated RS-485/RS-422
Data Interface
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
With Respect to GND_
Supply Voltage (V
CC_
)...........................................-0.3V to +6V
Control Input Voltage (SD, FS)...............-0.3V to (V
CC_
+ 0.3V)
Receiver Output Voltage (RO, RO)........-0.3V to (V
CC_
+ 0.3V)
Output Switch Voltage (D1, D2)........................................+12V
With Respect to ISO COM_
Control Input Voltage (ISO DE_ )....-0.3V to (ISO V
CC_
+ 0.3V)
Driver Input Voltage (ISO DI_ ).......-0.3V to (ISO V
CC_
+ 0.3V)
Receiver Output Voltage (ISO RO_)
...-0.3V to (ISO V
CC_
+ 0.3V)
Driver Output Voltage (A, B, Y, Z )......................-8V to +12.5V
Receiver Input Voltage (A, B)..............................-8V to +12.5V
ELECTRICAL CHARACTERISTICS
(V
CC_
= 5V ±10%, V
FS
= V
CC_
, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC_
= 5V and T
A
= +25°C.) (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.
LED Forward Current (DI, DE, ISO RO LED) ......................50mA
Continuous Power Dissipation (T
A
= +70°C)
24-Pin Plastic DIP (derate 8.7mW°C above +70°C) .....696mW
28-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ..727mW
Operating Temperature Ranges
MAX1480_CPI/MAX1490_CPG............................0°C to +70°C
MAX1480_EPI/MAX1490_EPG .........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +160°C
Lead Temperature (soldering, 10s).................................+300°C
M
PARAMETER
SYMBOL
f
SWL
f
SWH
CONDITIONS
MIN
TYP
535
725
60
120
35
95
35
95
100
170
65
130
MAX
UNITS
V
FS
= 0V
FS = V
CC_
or open
MAX1480A,
DE
′
= V
CC_
or open
Switch Frequency
kHz
R
L
=
∞
, +25
°
C only
R
L
= 54
R
L
=
∞
, +25
°
C only
R
L
= 54
R
L
=
∞
, +25
°
C only
R
L
= 54
R
L
=
∞
, +25
°
C only
R
L
= 54
R
L
=
∞
, +25
°
C only
R
L
= 54
90
45
MAX1480B,
DE
′
= V
CC_
or open
75
MAX1480C,
DE
′
= V
CC_
or open
150
MAX1490A
125
Operating Supply Current
I
CC
MAX1490B
mA
Shutdown Supply Current
(Note 3)
I
SHDN
SD = V
CC_
0.2
μA
V
SDH
V
SDL
High
Low
2.4
Shutdown Input Threshold
0.8
V
Shutdown Input Leakage Current
10
pA
V
FSH
V
FSL
High
Low
FS low
FS high
DE
′
, DI
′
DE
′
, DI
′
T
A
= +25
°
C, V
ISO
= 50VDC
T
A
= +25
°
C, V
ISO
= 50VDC
2.4
FS Input Threshold
0.8
50
V
FS Input Pullup Current
FS Input Leakage Current
Input High Voltage
Input Low Voltage
Isolation Resistance
Isolation Capacitance
μA
pA
V
V
M
pF
10
V
IH
V
IL
R
ISO
C
ISO
V
CC_
- 0.4
0.4
100
10,000
10
Differential Driver Output
(No Load)
V
OD1
8
V
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