參數(shù)資料
型號： DS275
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： Line Driver or Receiver
英文描述： LINE TRANSCEIVER, PDIP8
封裝： 0.300 INCH, PLASTIC, DIP-8
文件頁數(shù)： 13/19頁
文件大?。?/td> 1664K
代理商： DS275
MAX1480E/MAX1490E
±15kV ESD-Protected, Isolated RS-485/RS-422
Data Interfaces
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VCC_ = +5V ±10%, VFS = VCC_, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC_ = +5V and TA = +25°C.)
(Notes 1, 2)
SWITCHING CHARACTERISTICS—MAX1480EA/MAX1490EA
(VCC_ = +5V ±10%, VFS = VCC_, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC_ = +5V and TA = +25°C.)
Driver Disable Time from Low
(MAX1480EA Only)
tLZ
0.5
1.8
s
Figures 6 and 8, CL = 15pF, S1 closed
Driver Disable Time from High
(MAX1480EA Only)
tHZ
0.5
1.8
s
Figures 6 and 8, CL = 15pF, S2 closed
Driver Enable to Output Low
(MAX1480EA Only)
tZL
1.0
1.8
s
Figures 6 and 8, CL = 100pF, S1 closed
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
Driver Rise or Fall Time
tR, tF
15
50
ns
Receiver Input to Output
Propagation Delay
tPHL
90
225
ns
Figures 5 and 7, RDIFF = 54
, CL1 = CL2 = 100pF
tPLH
120
225
Driver Enable to Output High
(MAX1480EA Only)
tZH
1.0
1.8
s
Figures 5 and 10, RDIFF = 54
, CL1 = CL2 = 100pF
Figures 6 and 8, CL = 100pF, S2 closed
tPLH
90
275
Figures 5 and 7, RDIFF = 54
,
CL1 = CL2 = 100pF
Driver Output Skew
CONDITIONS
tSKEW
30
100
ns
Driver Input to Output
Propagation Delay
tPHL
60
275
ns
Figures 5 and 7, RDIFF = 54
, CL1 = CL2 = 100pF
-7V
≤ VCM ≤ +12V
V
VTH
Receiver Differential Threshold
A, B, Y, and Z pins, tested using Human Body
Model, Figures 1 and 2
kV
ISO IOSD
ESD Protection
R = 27
or 50, Figure 4
V
0.3
VOD
CONDITIONS
Change in Magnitude of
Driver Output Voltage for
Complementary Output States
mA
0.25
R = 27
or 50, Figure 4
VCM = 0
k
RIN
Receiver Input Resistance
mV
VTH
Receiver Input Hysteresis
V
4
VOC
Driver Common-Mode Output
1.0
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
VOUT = 5.5V
A
IOH
Receiver Output High Current
Using resistor values listed in Tables 1 and 2
-7V
≤ VO ≤ 12V (Note 5)
mA
ISO IOSD
Driver Short-Circuit Current
V
VOL
Receiver Output Low Voltage
Differential
Common mode
0.3
MAX1490EA/
MAX1490EB
MAX1480EA/
MAX1480EC
MAX1480EA/
MAX1480EC
MAX1490EA/
MAX1490EB
0.2
ISO IIN
Input Current (A, B)
0.8
DE
= 0,
VCC_ = 0 or +5.5V
VIN = +12V
VIN = -7V
12
-0.2
0.2
70
0.4
250
100
±15
-7V
≤ VCM ≤ +12V
48
(MAX1490E_)
(MAX1480E_)
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