Datasheet

Data Sheet ADuM1250/ADuM1251
Rev. I | Page 3 of 16
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
DC Specifications
1
All minimum/maximum specifications apply over the entire recommended operating range, unless otherwise noted. All typical
specifications are at T
A
= 25°C, V
DD1
= 3.3 V or 5 V, and V
DD2
= 3.3 V or 5 V, unless otherwise noted.
Table 1.
Parameter Symbol Min Typ Max Unit Test Conditions/Comments
ADuM1250
Input Supply Current, Side 1, 5 V I
DD1
2.8 5.0 mA V
DD1
= 5 V
Input Supply Current, Side 2, 5 V I
DD2
2.7 5.0 mA V
DD2
= 5 V
Input Supply Current, Side 1, 3.3 V I
DD1
1.9 3.0 mA V
DD1
= 3.3 V
Input Supply Current, Side 2, 3.3 V I
DD2
1.7 3.0 mA V
DD2
= 3.3 V
ADuM1251
Input Supply Current, Side 1, 5 V I
DD1
2.8 6.0 mA V
DD1
= 5 V
Input Supply Current, Side 2, 5 V I
DD2
2.5 4.7 mA V
DD2
= 5 V
Input Supply Current, Side 1, 3.3 V I
DD1
1.8 3.0 mA V
DD1
= 3.3 V
Input Supply Current, Side 2, 3.3 V I
DD2
1.6 2.8 mA V
DD2
= 3.3 V
LEAKAGE CURRENTS
I
SDA1
, I
SDA2
,
I
SCL1
, I
SCL2
0.01 10 μA
V
SDA1
= V
DD1
, V
SDA2
= V
DD2
,
V
SCL1
= V
DD1
, V
SCL2
= V
DD2
SIDE 1 LOGIC LEVELS
Logic Input Threshold
2
V
SDA1T
, V
SCL1T
500 700 mV
Logic Low Output Voltages V
SDA1OL
, V
SCL1OL
600 900 mV I
SDA1
= I
SCL1
= 3.0 mA
600 850 mV I
SDA1
= I
SCL1
= 0.5 mA
Input/Output Logic Low Level Difference
3
ΔV
SDA1
, ΔV
SCL1
50 mV
SIDE 2 LOGIC LEVELS
Logic Low Input Voltage V
SDA2IL
, V
SCL2IL
0.3 V
DD2
V
Logic High Input Voltage V
SDA2IH
, V
SCL2IH
0.7 V
DD2
V
Logic Low Output Voltage V
SDA2OL
, V
SCL2OL
400 mV I
SDA2
= I
SCL2
= 30 mA
1
All voltages are relative to their respective ground.
2
V
IL
< 0.5 V, V
IH
> 0.7 V.
3
ΔV
S1
= V
S1OL
− V
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
is no possibility of the part latching up the bus to which it is connected.