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型号： EVAL-ADM2491EEBZ
厂商： Analog Devices Inc
文件页数： 11/16页
文件大小： 0K
描述： BOARD EVAL FOR ADM2491
标准包装： 1
主要目的： 接口，收发器，RS-485
已用 IC / 零件： ADM2491
已供物品： 板
ADM2491E
Rev. B | Page 4 of 16
TIMING SPECIFICATIONS
TA = 40°C to +85°C.
Table 2.
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions
DRIVER
Maximum Data Rate
16
Mbps
Propagation Delay
t
PLH, tPHL
45
60
ns
R
L = 54 , CL1 = C L2 = 100 pF,
see Figure 6 and Figure 10
Pulse Width Distortion,
t
PWD = |tPYLH tPYHL|, tPWD = |tPZLH tPZHL|
t
PWD
7
ns
R
L = 54 , CL1 = CL2 = 100 pF,
see Figure 6 and Figure 10
Single-Ended Output Rise/Fall Times
t
R, tF
20
ns
R
L = 54 , CL1 = CL2 = 100 pF,
see Figure 6 and Figure 10
Enable Time
55
ns
R
L = 110 , CL = 50 pF, see Figure 8 and
Figure 11
Disable Time
55
ns
R
L = 110 , CL = 50 pF, see Figure 8 and
Figure 11
RECEIVER
Propagation Delay
t
PLH, tPHL
60
ns
C
L = 15 pF, see Figure 7 and Figure 12
Pulse Width Distortion, t
PWD = |tPLH tPHL|
t
PWD
10
ns
C
L = 15 pF, see Figure 7 and Figure 12
Enable Time
13
ns
R
L = 1 k, CL = 15 pF, see Figure 9 and
Figure 13
Disable Time
13
ns
R
L = 1 k, CL = 15 pF, see Figure 9 and
Figure 13
PACKAGE CHARACTERISTICS
Table 3.
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions
Resistance (Input to Output)1
R
I-O
1012
Capacitance (Input to Output)1
C
I-O
3
pF
f = 1 MHz
Input Capacitance2
C
I
4
pF
Input IC Junction-to-Case Thermal Resistance
θ
JCI
33
°C/W
Thermocouple located at center
of package underside
Output IC Junction-to-Case Thermal Resistance
θ
JCO
28
°C/W
1 Device considered a 2-terminal device: Pin 1, Pin 2, Pin 3, Pin 4, Pin 5, Pin 6, Pin 7, and Pin 8 are shorted together, and Pin 9, Pin 10, Pin 11, Pin 12, Pin 13, Pin 14, Pin 15,
and Pin 16 are shorted together.
2 Input capacitance is from any input data pin to ground.
REGULATORY INFORMATION
Table 4.
UL1
VDE2
Recognized under the 1577 component recognition program1
Certified according to DIN V VDE V 0884-10 (VDE V 0884-10): 2006-122
5000 V rms isolation voltage
Reinforced insulation, 846 V peak
1 In accordance with UL 1577, each ADM2491E is proof tested by applying an insulation test voltage ≥ 6000 V rms for 1 second (current leakage detection limit = 10 A).
2 In accordance with DIN V VDE V 0884-10, each ADM2491E is proof tested by applying an insulation test voltage ≥ 1590V peak for 1 second (partial discharge detection
limit = 5 pC).
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