adum1251 Analog Devices, Inc., adum1251 Datasheet - Page 3

• Manufacturer Part Number: adum1251
• Description: Hot Swappable Dual I2c Isolators
• Manufacturer: Analog Devices, Inc.

SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
DC Specifications
All minimum/maximum specifications apply over the entire recommended operating range, unless otherwise noted. All typical
specifications are at T
Table 1.
Parameter
ADuM1250
ADuM1251
LEAKAGE CURRENTS
SIDE 1 LOGIC LEVELS
SIDE 2 LOGIC LEVELS
1
2
3
All voltages are relative to their respective ground.
V
ΔV
is no possibility of the part latching up the bus to which it is connected.
IL
Input Supply Current, Side 1, 5 V
Input Supply Current, Side 2, 5 V
Input Supply Current, Side 1, 3.3 V
Input Supply Current, Side 2, 3.3 V
Input Supply Current, Side 1, 5 V
Input Supply Current, Side 2, 5 V
Input Supply Current, Side 1, 3.3 V
Input Supply Current, Side 2, 3.3V
Logic Input Threshold
Logic Low Output Voltages
Input/Output Logic Low Level
Difference
Logic Low Input Voltage
Logic High Input Voltage
Logic Low Output Voltage
< 0.5 V, V
S1
= V
S1OL
– V
IH
> 0.7 V.
3
S1T
. This is the minimum difference between the output logic low level and the input logic threshold within a given component. This ensures that there
1
A
= 25°C, V
2
DD1
= 5 V, and V
Symbol
I
I
I
I
I
I
I
I
I
I
V
V
ΔV
V
V
V
DD1
DD2
DD1
DD2
DD1
DD2
DD1
DD2
SDA1
SCL1
SDA1T
SDA1OL
SDA2IL
SDA2IH
SDA2OL
DD2
SDA1
, I
, I
SCL2
SDA2
, V
, V
= 5 V, unless otherwise noted.
, V
, ΔV
, V
, V
SCL1T
SCL2IL
SCL2IH
SCL1OL
SCL2OL
,
SCL1
Rev. A | Page 3 of 12
Min
500
600
600
50
0.7 V
DD2
Typ
2.8
2.7
1.9
1.7
2.8
2.5
1.8
1.6
0.01
Max
5.0
5.0
3.0
3.0
6.0
4.7
3.0
2.8
10
700
900
850
0.3 V
400
DD2
Unit
mA
mA
mA
mA
mA
mA
mA
mA
μA
mV
mV
mV
mV
V
V
mV
ADuM1250/ADuM1251
Test Conditions
V
V
V
V
V
V
V
V
V
V
I
I
I
SDA1
SDA1
SDA2
DD1
DD2
DD1
DD2
DD1
DD2
DD1
DD2
SDA1
SCL1
= I
= I
= I
= 5 V
= 5 V
= 3.3 V
= 3.3 V
= 5 V
= 5 V
= 3.3 V
= 3.3 V
= V
= V
SCL1
SCL1
SCL2
DD1
DD1
= 3.0 mA
= 0.5 mA
= 30 mA
, V
, V
SCL2
SDA2
= V
= V
DD2
DD2
,