TLC372 Datasheet, PDF (11/12 Pages) Texas Instruments – LinCMOSE DUAL DIFFERENTIAL COMPARATORS

TLC372, TLC372Q, TLC372Y
LinCMOS™ DUAL DIFFERENTIAL COMPARATORS
SLCS114B – NOVEMBER 1983 – REVISED MARCH 1999
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
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