If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
Drive Input Voltage
Output Voltage
Receiver Output Sink Current
Receiver Input Voltage
Differential Input Voltage
Maximum Package Power Dissipation
@
+25˚C
M Package
N Package
1300 mW
1450 mW
7V
−0.5V to +7V
5.5V
50 mA
Derate M Package 10.4 mW/˚C above +25˚C
Derate N Package 11.6 mW/˚C above +25˚C
Storage Temperature Range
Lead Temp. (Soldering, 4 seconds)
ESD Rating (HBM)
−65˚C to +165˚C
260˚C
2000V+
±
10V
±
12V
Recommended Operating
Conditions
Min
Supply Voltage
Temperature (T
A
)
4.5
0
Max
5.5
70
Units
V
˚C
DS8922/22A and DS8923A Electrical Characteristics
(Notes 2, 3, 4)
Symbol
RECEIVER
V
TH
V
HYST
R
IN
I
IN
V
OH
V
OL
I
SC
DRIVER
V
OH
V
OL
I
OFF
|VT|–| VT |
VT
|V
OS
– V
OS
|
I
SC
I
OZ
TRI-STATE
Leakage
I
CC
V
CC
= MAX
ACTIVE
TRI-STATE
DRIVER and ENABLE INPUTS
V
IH
V
IL
I
IL
I
IH
I
I
V
CL
V
V
V
V
CC
CC
CC
CC
Conditions
−7V
≤
V
CM
≤
+7V
−7V
≤
V
CM
≤
+7V
V
IN
Min
−200
15
4.0
Typ
Max
+200
Units
mV
mV
kΩ
±
35
70
6.0
= −7V, +7V (Other Input = GND)
V
IN
= 10V
V
IN
= −10V
V
V
V
V
V
V
CC
CC
CC
3.25
−3.25
2.5
0.5
−15
2.5
0.5
100
0.4
2.0
0.4
−100
mA
mA
V
V
mA
V
V
µA
V
V
V
mA
µA
µA
mA
mA
V
= MIN, I
OH
= − 400 µA
= MAX, I
OL
= 8 mA
= MAX, V
OUT
= 0V
= MIN, I
OH
= −20 mA
= MIN, I
OL
= +20 mA
= 0V, V
OUT
= 5.5V
CC
CC
CC
V
CC
= MAX, V
OUT
= 0V
V
OUT
= 2.5V
−30
−150
50
−50
76
78
DRIVER and RECEIVER
V
CC
= MAX
V
OUT
= 0.4V
2.0
0.8
= MAX, V
IN
= 0.4V
= MAX, V
IN
= 2.7V
= MAX, V
IN
= 7.0V
= MIN, I
IN
= −18 mA
−40
−200
20
100
−1.5
V
µA
µA
µA
V
3
www.national.com
DS8922/DS8922A/DS8923A
Receiver Switching Characteristics
(Figures
1, 2, 3)
Parameter
T
pLH
T
pHL
|T
pLH
–T
pHL
|
Skew (Channel to Channel)
T
pLZ
T
pHZ
T
pZL
T
pZH
Conditions
CL = 30 pF
CL = 30 pF
CL = 30 pF
CL = 30 pF
CL = 15 pF S2 Open
CL = 15 pF S1 Open
CL = 30 pF S2 Open
CL = 30 pF S1 Open
Min
Typ
8922
12
12
0.5
0.5
15
15
20
20
22.5
22.5
5
3.0
Max
8922A/23A
20
20
3.5
2.0
ns
ns
ns
ns
ns
ns
ns
ns
Units
Driver Switching Characteristics
Parameter
Conditions
Min
Typ
8922
SINGLE ENDED CHARACTERISTICS
(Figures
4, 5, 6, 8)
T
pLH
T
pHL
T
TLH
T
THL
|T
pLH
–T
pHL
|
Skew
Skew (Channel to Channel)
T
pLZ
T
pHZ
T
pZL
T
pZH
T
pLH
T
pHL
|T
pLH
–T
pHL
|
CL = 30 pF
CL = 30 pF
CL = 30 pF
CL = 30 pF
CL = 30 pF
CL = 30 pF
CL = 30 pF
CL = 30 pF
CL = 30 pF
CL = 30 pF
CL = 30 pF
CL = 30 pF
CL = 30 pF (Note 5)
12
12
5
5
0.5
0.5
0.5
15
15
20
20
12
12
0.5
15
15
6.0
15
15
2.75
5
3.0
3.5
2.0
15
15
10
10
15
15
10
10
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Max
8922A/23A
Units
DIFFERENTIAL SWITCHING CHARACTERISTICS
(Note 6), (Figure
4)
Note 1:
“Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the device
should be operated at these limits. The Table of “Electrical Characteristics” provides conditions for actual device operation.
Note 2:
All currents into device pins are shown as positive values; all currents out of the device are shown as negative; all voltages are referenced to ground unless
otherwise specified. All values shown as max or min are classified on absolute value basis.
Note 3:
All typical values are V
CC
= 5V, T
A
= 25˚C.
Note 4:
Only one output at a time should be shorted.
Note 5:
Difference between complementary outputs at the 50% point.
Note 6:
Differential Delays are defined as calculated results from single ended rise and fall time measurements. This approach in establishing AC performance
specifications has been taken due to limitations of available Automatic Test Equipment (ATE).
The calculated ATE results assume a linear transition between measurement points and are a result of the following equations:
Where:
Tcp = Crossing Point
Tra, Trb, Tfa and Tfb are time measurements with respect to the input.
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