CMRR vs Frequency

Open-Loop Frequency

Response

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Frequency Response

vs Capacitive Load

Non-Inverting Large Signal

Pulse Response

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Stability vs

Capacitive Load

Stability vs

Capacitive Load

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Note: Avoid resistive loads of less than 500

Ω, as they may cause instability.

Application Hints

AMPLIFIER TOPOLOGY

The topology chosen for the LMC660EP, shown in Figure 1,

is unconventional (compared to general-purpose op amps)

in that the traditional unity-gain buffer output stage is not

used; instead, the output is taken directly from the output of

the integrator, to allow rail-to-rail output swing. Since the

buffer traditionally delivers the power to the load, while main-

taining high op amp gain and stability, and must withstand

shorts to either rail, these tasks now fall to the integrator.

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