参数资料
型号: ADM2485BRWZ-REEL7
厂商: Analog Devices Inc
文件页数: 2/20页
文件大小: 0K
描述: IC TXRX ISOLATED RS-485 16SOIC
产品培训模块: iCoupler Digital Isolater Technology
设计资源: Half-Duplex, Isolated RS-485 Interface (CN0031)
标准包装: 1
系列: *
其它名称: ADM2485BRWZ-REEL7DKR
ADM2485
Rev. A | Page 10 of 20
TYPICAL PERFORMANCE CHARACTERISTICS
2.40
2.35
2.30
2.25
2.20
2.15
2.10
2.05
2.00
–40
–20
0
20
40
60
80
S
UP
P
L
Y
CU
RRE
NT
(m
A)
TEMPERATURE (°C)
IDD1_RE_ENABLE_VDD1 = 5.5V
IDD2_DE_ENABLE_VDD1 = 5.5V
06
02
1-
0
16
Figure 7. Unloaded Supply Current vs. Temperature
5.0
4.0
3.0
2.0
1.0
0
4.5
3.5
2.5
1.5
0.5
–40
–20
0
20
40
60
80
I DD
1
S
U
P
L
Y
CURRE
NT
(
m
A)
TEMPERATURE (°C)
IDD1_PROFIBUS LOAD_TxD = 16Mbps_VDD1 = 5.00V
IDD1_PROFIBUS LOAD_TxD = 2Mbps_VDD1 = 5.00V
IDD1_NO LOAD_TxD = 16Mbps_VDD1 = 5.00V
IDD1_NO LOAD_TxD = 2Mbps_VDD1 = 5.00V
06
02
1-
0
17
Figure 8. Logic Side Supply Current (IDD1 = 1 mA) vs. Temperature
60
40
50
30
20
10
0
–40
–20
0
20
40
60
80
I DD
2
S
U
P
L
Y
CURRE
NT
(
m
A)
TEMPERATURE (°C)
IDD2_ PROFIBUS LOAD_TxD = 16Mbps_VDD2 = 5.00V
IDD2_NO LOAD_TxD = 16Mbps_VDD2 = 5.00V
IDD2_NO LOAD_TxD = 2Mbps_VDD2 = 5.00V
IDD2_PROFIBUS LOAD_TxD = 2Mbps_VDD2 = 5.00V
06
02
1-
0
18
Figure 9. Bus Side Supply Current (IDD2 = 2 mA) vs. Temperature
60
40
50
30
20
10
0
–40
–20
0
20
40
60
80
DRI
V
E
R
P
R
O
P
AG
AT
IO
N
DE
L
A
Y
(
n
s)
TEMPERATURE (°C)
tPLHA
tPLHB
tPHLA
tPHLB
06
02
1-
0
19
Figure 10. Driver Propagation Delay vs. Temperature
60
40
50
30
20
10
0
–40
–20
0
20
40
60
80
R
E
CE
IV
E
R
P
R
O
P
AG
AT
IO
N
DE
L
A
Y
(n
s)
TEMPERATURE (°C)
Rx PROP DELAY,
tPLH_VDD2 = 5.00V
Rx PROP DELAY,
tPHL_VDD2 = 5.00V
06
02
1-
0
20
Figure 11. Receiver Propagation Delay vs. Temperature
CH1 2.0V
CH3 2.0V
CH2 2.0V M20.0ns 1.25GS/s
IT 8.0ps/pt
A CH3
2.60V
2
3
DI
B
A
0
60
21
-02
1
Figure 12. Driver/Receiver Propagation Delay, Low to High
(RLDIFF = 54 Ω, CL1 = CL2 = 100 pF)
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