SNLS375B – JUNE 1998 – REVISED APRIL 2013
DC Electrical Characteristics
V
CC
= 5V ± 10% (unless otherwise specified)
(1)
Symbol
V
IH
V
IL
V
OH
V
OL
V
T
|V
T
|
−
|V
T
|
V
OS
|V
OS
−
V
OS
|
I
IN
I
CC
Parameter
High Level Input Voltage
Low Level Input Voltage
High Level Output Voltage
Low Level Output Voltage
Differential Output Voltage
Difference In Differential Output
Common Mode Output Voltage
Difference In Common Mode
Output
Input Current
Quiescent Supply Current
(3)
Conditions
Min
2.0
Typ
Max
0.8
Units
V
V
V
V
IN
= V
IH
or V
IL
,
I
OUT
=
−20
mA
V
IN
= V
IH
or V
IL
,
I
OUT
= 20 mA
R
L
= 100Ω
See
(2)
R
L
= 100Ω
See
(2)
R
L
= 100Ω
See
(2)
R
L
= 100Ω
See
(2)
2.5
3.4
0.3
0.5
V
V
2.0
3.1
0.4
1.8
3.0
0.4
±1.0
200
0.8
200
0.8
±0.5
500
2.0
500
2.1
±5.0
−150
100
−100
100
−100
V
V
V
μA
μA
mA
μA
mA
μA
mA
μA
μA
μA
μA
V
IN
= V
CC
, GND, V
IH
, or V
IL
DS26C31T
I
OUT
= 0
μA
DS26C31M
I
OUT
= 0
μA
V
IN
= V
CC
or GND
V
IN
= 2.4V or 0.5V
(3)
V
IN
= V
CC
or GND
V
IN
= 2.4V or 0.5V
(3)
I
OZ
TRI-STATE Output Leakage
Current
V
OUT
= V
CC
or GND
ENABLE = V
IL
ENABLE = V
IH
V
IN
= V
CC
or GND
(2) (4)
DS26C31T
V
CC
= 0V
DS26C31M
V
CC
= 0V
V
OUT
= 6V
V
OUT
=
−0.25V
V
OUT
= 6V
V
OUT
= 0V
(5)
−30
I
SC
I
OFF
Output Short Circuit Current
Output Leakage Current Power
Off
(2)
(1)
(2)
(3)
(4)
(5)
Unless otherwise specified, min/max limits apply across the recommended operating temperature range. All typicals are given for V
CC
=
5V and T
A
= 25°C.
See EIA Specification RS-422 for exact test conditions.
Measured per input. All other inputs at V
CC
or GND.
This is the current sourced when a high output is shorted to ground. Only one output at a time should be shorted.
The DS26C31M (−55°C to +125°C) is tested with V
OUT
between +6V and 0V while RS-422A condition is +6V and
−0.25V.
Switching Characteristics
V
CC
= 5V ±10%, t
r
≤
6 ns, t
f
≤
6 ns (Figure
(1)
Symbol
t
PLH
, t
PHL
Skew
t
TLH
, t
THL
t
PZH
t
PZL
Parameter
Propagation Delays Input to Output
(2)
Conditions
S1 Open
S1 Open
S1 Open
S1 Closed
S1 Closed
Min
2
Typ
DS26C31T
6
0.5
6
11
13
11
2.0
10
19
21
Max
CS26C31M
14
3.0
14
22
28
Units
ns
ns
ns
ns
ns
Differential Output Rise And Fall
Times
Output Enable Time
Output Enable Time
(1)
(2)
4
Unless otherwise specified, min/max limits apply across the recommended operating temperature range. All typicals are given for V
CC
=
5V and T
A
= 25°C.
Skew is defined as the difference in propagation delays between complementary outputs at the 50% point.
Copyright © 1998–2013, Texas Instruments Incorporated
Product Folder Links:
TI [ TEXAS INSTRUMENTS ]
