lmc6464amj-qml National Semiconductor Corporation, lmc6464amj-qml Datasheet - Page 16

• Manufacturer Part Number: lmc6464amj-qml
• Description: Lmc6464qml Quad Micropower, Rail-to-rail Input And Output Cmos Operational Amplifier
• Manufacturer: National Semiconductor Corporation

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Typical Single-Supply Applications
TRANSDUCER INTERFACE CIRCUITS
Photocells can be used in portable light measuring instru-
ments. The LMC6464, which can be operated off a battery, is
an excellent choice for this circuit because of its very low input
current and offset voltage.
LMC6464 AS A COMPARATOR
Figure 17
parator. The hysteresis is determined by the ratio of the two
resistors. The LMC6464 can thus be used as a micropower
comparator, in applications where the quiescent current is an
important parameter.
HALF-WAVE AND FULL-WAVE RECTIFIERS
FIGURE 17. Comparator with Hysteresis
shows the application of the LMC6464 as a com-
FIGURE 18. Half-Wave Rectifier with
FIGURE 16. Photo Detector Circuit
Input Current Protection (R
I
)
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In
excess current can be caused by the input voltage exceeding
the supply voltage.
PRECISION CURRENT SOURCE
The output current I
OSCILLATORS
Figure 18 Figure
FIGURE 21. 1 Hz Square-Wave Oscillator
FIGURE 20. Precision Current Source
with Input Current Protection (R
FIGURE 19. Full-Wave Rectifier
19, R
OUT
is given by:
I
limits current into the amplifier since
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I
)
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