TLC372CDRG4 Datasheet, PDF (10/26 Pages) Texas Instruments – Single or Dual-Supply Operation

TLC372
LinCMOS DUAL DIFFERENTIAL COMPARATORS
SLCS114E − NOVEMBER 1983 − 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
−
INPUT CURRENT
vs
NEGATIVE INPUT VOLTAGE
−10
TA = 25°C
−9
−8
−7
−6
−5
−4
−3
−2
−1
0
−0.3
−0.5
−0.7
Input Voltage (V)
−0.9
Figure 6
Positive Voltage Input Current Limit:
RI =
+VI − VDD − 0.3 V
5 mA
RL
Negative Voltage Input Current Limit:
RI =
| − VI | − 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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