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型号： EVAL-ADM2687EEBZ
厂商： Analog Devices Inc
文件页数： 4/24页
文件大小： 0K
描述： BOARD EVAL ADM2687
标准包装： 1
主要目的： 接口，收发器，RS-422/RS-485
已用 IC / 零件： ADM2687
已供物品： 板
ADM2682E/ADM2687E
ADM2682E TIMING SPECIFICATIONS
T A = ?40°C to +85°C.
Table 2.
Data Sheet
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions/Comments
DRIVER
Maximum Data Rate
16
Mbps
Propagation Delay, Low to High
Propagation Delay, High to Low
Output Skew
Rise Time/Fall Time
Enable Time
Disable Time
t DPLH
t DPHL
t SKEW
t DR , t DF
t ZL , t ZH
t LZ , t HZ
63
64
1
100
100
8
15
120
150
ns
ns
ns
ns
ns
ns
R L = 54 ?, C L1 = C L2 = 100 pF, see Figure 31 and Figure 35
R L = 54 ?, C L1 = C L2 = 100 pF, see Figure 31 and Figure 35
R L = 54 ?, C L1 = C L2 = 100 pF, see Figure 31 and Figure 35
R L = 54 ?, C L1 = C L2 = 100 pF, see Figure 31 and Figure 35
R L = 110 ?, C L = 50 pF, see Figure 32 and Figure 37
R L = 110 ?, C L = 50 pF, see Figure 32 and Figure 37
RECEIVER
Propagation Delay, Low to High
Propagation Delay, High to Low
Output Skew 1
Enable Time
Disable Time
t RPLH
t RPHL
t SKEW
t ZL , t ZH
t LZ , t HZ
94
95
1
110
110
12
15
15
ns
ns
ns
ns
ns
C L = 15 pF, see Figure 33 and Figure 36
C L = 15 pF, see Figure 33 and Figure 36
C L = 15 pF, see Figure 33 and Figure 36
R L = 1 k?, C L = 15 pF, see Figure 34 and Figure 38
R L = 1 k?, C L = 15 pF, see Figure 34 and Figure 38
1
Guaranteed by design.
ADM2687E TIMING SPECIFICATIONS
T A = ?40°C to +85°C.
Table 3.
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions/Comments
DRIVER
Maximum Data Rate
500
kbps
Propagation Delay, Low to High
Propagation Delay, High to Low
t DPLH
t DPHL
250
250
503
510
700
700
ns
ns
R L = 54 ?, C L1 = C L2 = 100 pF, see Figure 31 and Figure 35
R L = 54 ?, C L1 = C L2 = 100 pF, see Figure 31 and Figure 35
Output Skew
Rise Time/Fall Time
Enable Time
Disable Time
t SKEW
t DR , t DF
t ZL , t ZH
t LZ , t HZ
200
7
100
1100
2.5
200
ns
ns
μs
ns
R L = 54 ?, C L1 = C L2 = 100 pF, see Figure 31 and Figure 35
R L = 54 ?, C L1 = C L2 = 100 pF, see Figure 31 and Figure 35
R L = 110 ?, C L = 50 pF, see Figure 32 and Figure 37
R L = 110 ?, C L = 50 pF, see Figure 32 and Figure 37
RECEIVER
Propagation Delay, Low to High
Propagation Delay, High to Low
Output Skew
Enable Time
Disable Time
t RPLH
t RPHL
t SKEW
t ZL , t ZH
t LZ , t HZ
91
95
4
200
200
30
15
15
ns
ns
ns
ns
ns
C L = 15 pF, see Figure 33 and Figure 36
C L = 15 pF, see Figure 33 and Figure 36
C L = 15 pF, see Figure 33 and Figure 36
R L = 1 k?, C L = 15 pF, see Figure 34 and Figure 38
R L = 1 k?, C L = 15 pF, see Figure 34 and Figure 38
PACKAGE CHARACTERISTICS
Table 4.
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions/Comments
Resistance (Input-to-Output) 1
R I-O
10 12
?
Capacitance (Input-to-Output) 1
Input Capacitance 2
C I-O
C I
3
4
pF
pF
f = 1 MHz
1
2
Device considered a 2-terminal device: short together Pin 1 to Pin 8 and short together Pin 9 to Pin 16.
Input capacitance is from any input data pin to ground.
Rev. B | Page 4 of 24
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