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TLC372_14 Datasheet, PDF (10/27 Pages) Texas Instruments – LinCMOSE DUAL DIFFERENTIAL COMPARATORS | |||
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TLC372
LinCMOS DUAL DIFFERENTIAL COMPARATORS
SLCS114E â NOVEMBER 1983 â REVISED JULY 2008
PRINCIPLES OF OPERATION
circuit-design considerations (continued)
INPUT CURRENT
vs
POSITIVE INPUT VOLTAGE
8
TA = 25°C
7
6
5
4
3
2
1
0
VDD
VDD + 4
VDD + 8
Input Voltage (V)
VDD + 12
Figure 5
VDD
RI
VI
See Note A
Vref
+
TLC372
â
INPUT CURRENT
vs
NEGATIVE INPUT VOLTAGE
â10
TA = 25°C
â9
â8
â7
â6
â5
â4
â3
â2
â1
0
â0.3
â0.5
â0.7
Input Voltage (V)
â0.9
Figure 6
Positive Voltage Input Current Limit:
RI =
+VI â VDD â 0.3 V
5 mA
RL
Negative Voltage Input Current Limit:
RI =
| â VI | â 0.3 V
5 mA
NOTE A: If the correct output state is required when the negative input is less than GND, a schottky clamp is required.
Figure 7. Typical Input Current-Limiting Configuration for a LinCMOS Comparator
10
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