TLC374_15 Datasheet, PDF (12/26 Pages) Texas Instruments – LinCMOS QUADRUPLE DIFFERENTIAL COMPARATORS

TLC374, TLC374Q, TLC374Y
LinCMOS QUADRUPLE DIFFERENTIAL COMPARATORS
SLCS118C – NOVEMBER 1983 – REVISED MARCH 1999
PRINCIPLES OF OPERATION
INPUT CURRENT
vs
INPUT VOLTAGE^†
8
TA = 25°C
7
6
5
4
3
2
1
0
VDD
VDD + 4
VDD + 8
VDD + 12
VI – Input Voltage – V
† _{The dashed line identifies an area of operation where some}
degradation of parametric performance may be experienced.
Figure 5
VDD
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
VDD – 0.9
VI – Input Voltage – V
† _{The dashed line identifies an area of operation where some}
degradation of parametric performance may be experienced.
Figure 6
RL
VI
See Note A
VREF
RL
1/4
+ ^TLC374
–
Positive Voltage Input Current Limit:
+VI – VDD – 0.3 V
RI =
5 mA
Negative Voltage Input Current Limit:
–VI – VDD – (0.3 V)
RI =
5 mA
NOTE A: If the correct output state is required when the negative input exceeds VSS, a Schotty clamp is required.
Figure 7. Typical Input Current-Limiting Configuration for a LinCMOS Comparator
12
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