參數(shù)資料
型號(hào): ADUM1251
廠商: Analog Devices, Inc.
英文描述: Hot Swappable Dual I2C Isolators
中文描述: 熱插拔雙的I2C隔離器
文件頁(yè)數(shù): 3/12頁(yè)
文件大?。?/td> 201K
代理商: ADUM1251
ADuM1250/ADuM1251
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
DC 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
A
= 25°C, V
DD1
= 5 V, and V
DD2
= 5 V, unless otherwise noted.
Rev. 0 | Page 3 of 12
Table 1.
Parameter
ADuM1250
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
ADuM1251
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
LEAKAGE CURRENTS
Symbol
I
DD1
I
DD2
I
DD1
I
DD2
I
DD1
I
DD2
I
DD1
I
DD2
I
SDA1
, I
SDA2
, I
SCL1
,
I
SCL2
V
SDA1T
, V
SCL1T
V
SDA1OL
, V
SCL1OL
ΔV
SDA1
, ΔV
SCL1
Min
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
Unit
mA
mA
mA
mA
mA
mA
mA
mA
μA
Test Conditions
V
DD1
= 5 V
V
DD2
= 5 V
V
DD1
= 3.3 V
V
DD2
= 3.3 V
V
DD1
= 5 V
V
DD2
= 5 V
V
DD1
= 3.3 V
V
DD2
= 3.3 V
V
SDA1
= V
DD1
, V
SDA2
= V
DD2
,
V
SCL1
= V
DD1
, V
SCL2
= V
DD2
I
SDA1
= I
SCL1
= 3.0 mA
I
SDA1
= I
SCL1
= 0.5 mA
SIDE 1 LOGIC LEVELS
Logic Input Threshold
1
Logic Low Output Voltages
Input/Output Logic Low Level
Difference
2
SIDE 2 LOGIC LEVELS
Logic Low Input Voltage
Logic High Input Voltage
Logic Low Output Voltage
500
600
600
50
700
900
850
mV
mV
mV
mV
V
SDA2IL
, V
SCL2IL
V
SDA2IH
, V
SCL2IH
V
SDA2OL
, V
SCL2OL
0.3 V
DD2
400
V
V
mV
I
SDA2
= I
SCL2
= 30 mA
0.7 V
DD2
1
V < 0.5 V, V > 0.7 V.
IL
2
ΔV = V
is no possibility of the part latching up the bus to which it is connected.
IH
– V . This is the minimum difference between the output logic low level and the input logic threshold within a given component. This ensures that there
S1OL
S1T
S1
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