Recommended Operating Conditions
Electrical Characteristics
(1)
Switching Characteristics
AM26LS31C , AM26LS31MQUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS114I – JANUARY 1979 – REVISED FEBRUARY 2006
MIN NOM MAX UNIT
AM26LS31C 4.75 5 5.25V
CC
Supply voltage VAM26LS31M 4.5 5 5.5V
IH
High-level input voltage 2 VV
IL
Low-level input voltage 0.8 VI
OH
High-level output current –20 mAI
OL
Low-level output current 20 mAAM26LS31C 0 70T
A
Operating free-air temperature °CAM26LS31M –55 125
over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP
(2)
MAX UNIT
V
IK
Input clamp voltage V
CC
= MIN, I
I
= –18 mA –1.5 VV
OH
High-level output voltage V
CC
= MIN, I
OH
= –20 mA 2.5 VV
OL
Low-level output voltage V
CC
= MIN, I
OL
= 20 mA 0.5 VV
O
= 0.5 V –20Off-state (high-impedance-state)
I
OZ
V
CC
= MIN, µAoutput current
V
O
= 2.5 V 20I
I
Input current at maximum input voltage V
CC
= MAX, V
I
= 7 V 0.1 mAI
IH
High-level input current V
CC
= MAX, V
I
= 2.7 V 20 µAI
IL
Low-level input current V
CC
= MAX, V
I
= 0.4 V –0.36 mAI
OS
Short-circuit output current
(3)
V
CC
= MAX –30 –150 mAI
CC
Supply current V
CC
= MAX, All outputs disabled 32 80 mA
(1) For C-suffix devices, V
CC
min = 4.75 V and V
CC
max = 5.25 V. For M-suffix devices, V
CC
min = 4.5 V and V
CC
max = 5.5 V.(2) All typical values are at V
CC
= 5 V and T
A
= 25 °C.(3) Not more than one output should be shorted at a time, and duration of the short circuit should not exceed one second.
V
CC
= 5 V (see Figure 1 )
T
A
= 25 °C AM26LS31MPARAMETER TEST CONDITIONS UNITMIN TYP MAX MIN MAX
Propagation delay time, low- tot
PLH
14 20 30high-level output
C
L
= 30 pF, S1 and S2 open nsPropagation delay time, high- tot
PHL
14 20 30low-level outputt
PZH
Output enable time to high level R
L
= 75 Ω25 40 60C
L
= 30 pF nst
PZL
Output enable time to low level R
L
= 180 Ω37 45 68t
PHZ
Output disable time from high level 21 30 45C
L
= 10 pF, S1 and S2 closed nst
PLZ
Output disable time from low level 23 35 53t
SKEW
Output-to-output skew C
L
= 30 pF, S1 and S2 open 1 6 9 ns
4
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