Datasheet

TLC372, TLC372Q, TLC372Y
LinCMOS
 DUAL DIFFERENTIAL COMPARATORS
SLCS114A – NOVEMBER 1983 – REVISED NOVEMBER 1996
11
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
circuit-design considerations (continued)
Figure 5
V
DD
0
Input Current – mA
Input Voltage – V
8
1
2
3
4
5
6
7
V
DD
+ 4 V
DD
+ 8 V
DD
+ 12
T
A
= 25°C
INPUT CURRENT
vs
INPUT VOLTAGE
Figure 6
T
A
= 25°C
V
DD
– 0.9V
DD
– 0.7V
DD
– 0.5
Input Voltage – V
Input Current – mA
0
V
DD
– 0.3
1
2
3
4
5
6
7
8
9
10
INPUT CURRENT
vs
INPUT VOLTAGE
–
+
V
ref
TLC372
R
L
V
DD
R
I
See Note A
V
I
Positive Voltage Input Current LImit:
Negative Voltage Input Current LImit:
R
I
=
+V
I
– V
DD
– 0.3 V
5 mA
R
I
=
–V
I
– V
DD
– (–0.3 V)
5 mA
NOTE A: If the correct output state is required when the negative input exceeds V
SS
, a schottky clamp is required.
Figure 7. Typical Input Current-Limiting Configuration for a LinCMOS Comparator