TLC372M Datasheet, PDF (10/20 Pages) Texas Instruments – LIN CMOS DUAL DIFFERENTIAL COMPARATORS

TLC372
LinCMOS DUAL DIFFERENTIAL COMPARATORS
SLCS114D − NOVEMBER 1983 − REVISED APRIL 2004
PRINCIPLES OF OPERATION
circuit-design considerations (continued)
8
TA = 25°C
7
INPUT CURRENT
vs
INPUT VOLTAGE
6
5
4
3
2
1
0
VDD
VDD + 4
VDD + 8
VDD + 12
Input Voltage − V
Figure 5
VDD
RI
VI
See Note A
Vref
+
TLC372
−
INPUT CURRENT
vs
INPUT VOLTAGE
10
TA = 25°C
9
8
7
6
5
4
3
2
1
0
VDD − 0.3
VDD − 0.5 VDD − 0.7
Input Voltage − V
Figure 6
VDD − 0.9
Positive Voltage Input Current LImit:
RI =
+VI − VDD − 0.3 V
5 mA
RL
Negative Voltage Input Current LImit:
RI =
−VI − VDD − (− 0.3 V)
5 mA
NOTE A: If the correct output state is required when the negative input exceeds VSS, a schottky clamp is required.
Figure 7. Typical Input Current-Limiting Configuration for a LinCMOS Comparator
10
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