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LMC660 Datasheet(PDF) 9 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. LMC660
Description  CMOS Quad Operational Amplifier
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com

LMC660 Datasheet(HTML) 9 Page - National Semiconductor (TI)

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Typical Single-Supply Applications (V+ = 5.0 VDC)
Additional single-supply applications ideas can be found in
the LM324 datasheet. The LMC660 is pin-for-pin compatible
with the LM324 and offers greater bandwidth and input resis-
tance over the LM324. These features will improve the per-
formance of many existing single-supply applications. Note,
however, that the supply voltage range of the LMC660 is
smaller than that of the LM324.
If R1 = R5, R3 = R6, and R4 = R7; then
V ≈100 for circuit shown.
For good CMRR over temperature, low drift resistors should
be used. Matching of R3 to R6 and R4 to R7 affect CMRR.
Gain may be adjusted through R2. CMRR may be adjusted
through R7.
Oscillator frequency is determined by R1, R2, C1, and C2:
fosc = 1/2
πRC, where R = R1 = R2 and
This circuit, as shown, oscillates at 2.0 kHz with a peak-to-
peak output swing of 4.5V.
Low-Leakage Sample-and-Hold
Instrumentation Amplifier
Sine-Wave Oscillator
1 Hz Square-Wave Oscillator
Power Amplifier

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