adum1250 Analog Devices, Inc., adum1250 Datasheet - Page 4

• Manufacturer Part Number: adum1250
• Description: Hot Swappable Dual I2c Isolators
• Manufacturer: Analog Devices, Inc.

ADuM1250/ADuM1251
AC Specifications
All voltages are relative to their respective ground. All min/max specifications apply over the entire recommended operating range, unless
otherwise noted. All typical specifications are at T
Table 2.
Parameter
MAXIMUM FREQUENCY
OUTPUT FALL TIME
PROPAGATION DELAY
PULSE WIDTH DISTORTION
COMMON-MODE TRANSIENT
IMMUNITY
1
2
3
4
5
t
t
t
t
CM
that can be sustained while maintaining V
magnitude is the range over which the common mode is slewed.
PLH12
PHL12
PLH21
PLH21
5 V Operation
3 V Operation
5 V Operation
3 V Operation
5 V Operation
3 V Operation
H
Side 1 Output (0.9 V
Side 2 Output (0.9 V
Side 1 Output (0.9 V
Side 2 Output (0.9 V
Side 1-to-Side 2, Rising Edge
Side 1-to-Side 2, Falling Edge
Side 2-to-Side 1, Rising Edge
Side 2-to-Side 1, Falling Edge
Side 1-to-Side 2, Rising Edge
Side 1-to-Side 2, Falling Edge
Side 2-to-Side 1, Rising Edge
Side 2-to-Side 1, Falling Edge
Side 1-to-Side 2, |t
Side 2-to-Side 1, |t
Side 1-to-Side 2, |t
Side 2-to-Side 1, |t
is the maximum common-mode voltage slew rate that can be sustained while maintaining V
propagation delay is measured from the Side 1 input logic threshold to an output value of 0.7 V
propagation delay is measured from the Side 1 input logic threshold to an output value of 0.4 V.
propagation delay is measured from the Side 2 input logic threshold to an output value of 0.7 V
propagation delay is measured from the Side 2 input logic threshold to an output value of 0.9 V.
5
PLH12
PLH21
PLH12
PLH21
DD1
DD2
DD2
DD1
to 0.9 V)
to 0.1 V
to 0.1 V
− t
− t
− t
− t
to 0.9 V)
PHL12
PHL21
PHL12
PHL21
1
3
DD2
DD2
1
3
2
4
2
4
|
|
|
|
O
)
)
< 0.8 V. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. The transient
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
PWD
PWD
PWD
PWD
|CM
|CM
f1
f2
f1
f2
PLH12
PHL12
PLH21
PHL21
PLH12
PHL12
PLH21
PHL21
H
L
|
|,
12
21
12
21
A
= 25°C, V
Min
1000
13
32
13
32
25
Rev. 0 | Page 4 of 12
DD1
Typ
26
52
32
61
95
162
31
85
82
196
32
110
67
54
114
77
35
= 5 V, and V
Max
120
120
120
120
130
275
70
155
125
340
75
210
145
85
215
135
DD2
Unit
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
kV/µs
= 5 V, unless otherwise noted. Refer to Figure 5.
O
> 0.8 V
DD2
DD1
.
.
Test Conditions
4.5 V ≤ V
C
3.0 V ≤ V
C
4.5 ≤ V
C
3.0 V ≤ V
C
4.5 V ≤ V
C
3.0 V ≤ V
C
DD2
L2
L2
L1
L1
L1
L1
= 400 pF, R2 = 180 Ω
= 400 pF, R2 = 120 Ω
= C
= C
= C
= C
. CM
DD1
L2
L2
L2
L2
L
is the maximum common-mode voltage slew rate
DD1
DD1
DD1
DD1
= 0, R1 = 1.6 kΩ, R2 = 180 Ω
DD1
= 0, R1 = 1.6 kΩ, R2 = 180 Ω
= 0, R1 = 1.0 kΩ, R2 = 120 Ω
= 0, R1 = 1.0 kΩ, R2 = 120 Ω
, V
,V
,V
,V
, V
,V
DD2
DD2
DD2
DD2
DD2
DD2
≤ 5.5 V,
≤ 5.5 V, C
≤ 3.6 V, C
≤ 3.6 V,
≤ 3.6 V,
≤ 5.5 V,
L1
L1
= 40 pF, R1 = 1.6 kΩ,
= 40 pF, R1 = 1.0 kΩ,