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ADUM1240ARZ-RL7

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24
Data Sheet ADuM1240/ADuM1241/ADuM1245/ADuM1246
Rev. B | Page 13 of 24
TRUTH TABLES
Table 22 provides the truth table (positive logic) for the
ADuM1240 and the ADuM1241, and Table 23 provides the
truth table (positive logic) for the ADuM1245 and the
ADuM1246. For a description of the abbreviations used in the
truth tables, see Table 21.
Table 21. Truth Table Abbreviations
Letter Description
H High level
L Low level
↑
Rising data transition
↓
Falling data transition
X Irrelevant
Q
O
Level of V
OX
prior to levels being established
Z High impedance
Table 22. ADuM1240/ADuM1241 Truth Table (Positive Logic)
1, 2, 3
V
Ix
Input V
DDI
State V
DDO
State
EN
x
State
V
Ox
Output Description
H Powered Powered L H Normal operation; data is high and refresh is enabled.
L Powered Powered L L Normal operation; data is low and refresh is enabled.
X Unpowered Powered L H Input unpowered. Outputs are in the default high state. Outputs return to
the input state within 150 µs of V
DDI
power restoration. See the pin function
descriptions (Table 19 and Table 20) for details.
X Unpowered Powered H Q
O
Input unpowered. Outputs are static at the level that was last sent from
the input or at the power-up level. See the pin function descriptions (Table 19
and Table 20) for details.
Powered Powered H H Output is high after propagation delay, refresh is disabled.
Powered Powered H L Output is low after propagation delay, refresh is disabled.
X Powered Unpowered X Z Output unpowered. Output pins are in high impedance state. Outputs
return to the input state within 150 µs of V
DDO
power restoration. See the
pin function descriptions (Table 19 and Table 20) for details.
1
V
Ix
and V
Ox
refer to the input and output signals of a given channel (A, B, C, or D).
2
V
DDI
refers to the power supply on the input side of a given channel (A, B, C, or D).
3
V
DDO
refers to the power supply on the output side of a given channel (A, B, C, or D).
Table 23. ADuM1245/ADuM1246 Truth Table (Positive Logic)
1, 2, 3
V
Ix
Input V
DDI
State V
DDO
State EN
x
State V
Ox
Output Description
H Powered Powered L H Normal operation; data is high and refresh is enabled.
L Powered Powered L L Normal operation; data is low and refresh is enabled.
X Unpowered Powered L L Input unpowered. Outputs are in the default low state. Outputs
return to the input state within 150 µs of V
DDI
power restoration. See
the pin function descriptions (Table 19 and Table 20) for details.
X Unpowered Powered H Q
O
Input unpowered. Outputs are static at the level that was last sent
from the input or at the power-up level. See the pin function
descriptions (Table 19 and Table 20) for details.
Powered Powered H H Output is high, refresh is disabled.
Powered Powered H L Output is low, refresh is disabled.
X Powered Unpowered X Z Output unpowered. Output pins are in high impedance state.
Outputs return to input state within 150 µs of V
DDO
power restoration.
See the pin function descriptions (Table 19 and Table 20) for details.
1
V
Ix
and V
Ox
refer to the input and output signals of a given channel (A, B, C, or D).
2
V
DDI
refers to the power supply on the input side of a given channel (A, B, C, or D).
3
V
DDO
refers to the power supply on the output side of a given channel (A, B, C, or D).
ADuM1240/ADuM1241/ADuM1245/ADuM1246 Data Sheet
Rev. B | Page 14 of 24
TYPICAL PERFORMANCE CHARACTERISTICS
0
50
100
150
200
250
300
350
0 500 1000 1500 2000
CURRENT CONSUMPTION PER INPUT (µA)
DATA RATE (kbps)
V
DDx
INPUT CURRENT
0
5
10
15
0 20 40
11925-006
Figure 9. Current Consumption per Input vs. Data Rate for 2.5 V,
EN
x
= Low Operation
0
10
20
30
40
50
60
70
80
90
0 500 1000 1500 2000
CURRENT CONSUMPTION PER OUTPUT (µA)
DATA RATE (kbps)
V
DDx
OUTPUT CURRENT
0
2
4
0 20 40
11925-007
Figure 10. Current Consumption per Output vs. Data Rate for 2.5 V,
EN
x
= Low Operation
0
50
100
150
200
250
300
350
400
0 500 1000 1500 2000
CURRENT CONSUMPTION PER INPUT (µA)
DATA RATE (kbps)
V
DDx
INPUT CURRENT
0
5
10
15
0 20 40
11925-008
Figure 11. Current Consumption per Input vs. Data Rate for 3.3 V,
EN
x
= Low Operation
0
20
40
60
80
100
120
140
0 500
1000
1500
2000
CURRENT CONSUMPTION PER OUTPUT (µA)
DATA RATE (kbps)
V
DDx
OUTPUT CURRENT
0
2
4
0 20 40
11925-009
Figure 12. Current Consumption per Output vs. Data Rate for 3.3 V,
EN
x
= Low Operation
0
20
40
60
80
100
120
140
160
0 500 1000 1500 2000
CURRENT CONSUMPTION PER INPUT (µA)
DATA RATE (kbps)
V
DDx
INPUT CURRENT
0
0.5
1.0
0 5 10
11925-010
Figure 13. Current Consumption per Input vs. Data Rate for 2.5 V,
EN
x
= High Operation
0
10
20
30
40
50
60
70
80
90
0 500 1000 1500 2000
CURRENT CONSUMPTION PER OUTPUT (µA)
DATA RATE (kbps)
V
DDx
OUTPUT CURRENT
0
0.5
1.0
0 5 10
11925-011
Figure 14. Current Consumption per Output vs. Data Rate for 2.5 V,
EN
x
= High Operation
Data Sheet ADuM1240/ADuM1241/ADuM1245/ADuM1246
Rev. B | Page 15 of 24
0
20
60
40
100
80
120
140
160
180
200
0 500 1000 1500 2000
CURRENT CONSUMPTION PER INPUT (µA)
DATA RATE (kbps)
V
DDx
INPUT CURRENT
0
0.5
1.0
0510
11925-012
Figure 15. Current Consumption per Input vs. Data Rate for V
DDx
= 3.3 V,
EN
x
= High Operation
0
20
40
60
80
100
120
140
0 500 1000 1500 2000
CURRENT CONSUMPTION PER OUTPUT (µA)
DATA RATE (kbps)
V
DDx
OUTPUT CURRENT
0
0.5
1.0
0510
11925-013
Figure 16. Current Consumption per Output vs. Data Rate for V
DDx
= 3.3 V,
EN
x
= High Operation
0
100
200
300
400
500
600
01234
I
DDx
CURRENT (µA)
DATA INPUT VOLTAGE (V)
FALLING
RISING
11925-014
Figure 17. Typical I
DDx
Current per Input vs. Data Input Voltage for
V
DDx
= 3.3 V
0
50
100
150
200
250
300
0 0.5 1.0 1.5 2.0 2.5 3.0
I
DDx
CURRENT (µA)
DATA INPUT VOLTAGE (V)
FALLING
RISING
11925-015
Figure 18. I
DDx
Current per Input vs. Data Input Voltage for V
DDx
= 2.5 V
0
1
2
3
4
5
6
7
8
9
10
–40 –20 0 20 40 60 80 100 120 140
SUPPLY CURRENT PER CHANNEL (µA)
TEMPERATURE (°C)
OUTPUT
INPUT
11925-016
Figure 19. Typical Input and Output Supply Current per Channel vs.
Temperature for V
DDx
= 2.5 V, Data Rate = 100 kbps
0
1
2
3
4
5
6
7
8
9
10
–40 –20 0 20 40 60 80 100 120 140
SUPPLY CURRENT PER CHANN
E
L (µA)
TEMPERATURE (°C)
OUTPUT
INPUT
11925-017
Figure 20. Typical Input and Output Supply Current per Channel vs.
Temperature for V
DDx
= 3.3 V, Data Rate = 100 kbps
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24

ADUM1240ARZ-RL7

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Buy ADUM1240ARZ-RL7
Manufacturer:
Analog Devices Inc.
Description:
Digital Isolators DUAL-CHANNEL DI GITAL ISOLATORS
Lifecycle:
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