TLC3704-Q1 Datasheet, PDF (7/23 Pages) Texas Instruments – QUAD MICROPOWER LINCMOS VOLTAGE COMPARATORS

TLC3704ĆQ1
QUAD MICROPOWER LinCMOS VOLTAGE COMPARATORS
PRINCIPLES OF OPERATION
SGLS191 − JUNE 2004
circuit-design considerations (continued)
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
Figure 2
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
Figure 3
RI
VI
Vref
See Note A
+
1/2
TLC3704
−
Positive Voltage Input Current Limit :
R_I
+
V_I * V_DD * 0.3 V
5 mA
Negative Voltage Input Current Limit :
R_I
+
* V_I * V_DD * (* 0.3 V)
5 mA
NOTE A: If the correct input state is required when the negative input exceeds GND, a Schottky clamp is required.
Figure 4. Typical Input Current-Limiting Configuration for a LinCMOS Comparator
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