MIC862 datasheet(16/24 Pages) MICROCHIP

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MIC862

DS20005836A-page 16

 2017 Microchip Technology Inc.

4.0

APPLICATION INFORMATION

4.1

Power Supply Bypassing

Regular

supply

bypassing

techniques

are

recommended. A 10 μF capacitor in parallel with a

0.1 μF capacitor on both the positive and negative

supplies are ideal. For best performance all bypassing

capacitors should be located as close to the op amp as

possible and all capacitors should be low ESL

(equivalent series inductance), ESR (equivalent series

resistance). Surface-mount ceramic capacitors are

ideal.

4.2

Supply and Loading Resistive

Considerations

The MIC862 is intended for single-supply applications

configured with a grounded load. It is not advisable to

operate the MIC862 under either of the following

conditions:

• A grounded load and split supplies (±V)

• A single supply where the load is terminated

above ground.

Under the above conditions, if the load is less than

20 kΩ and the output swing is greater than 1V (peak),

there may be some instability when the output is

sinking current.

4.3

Capacitive Load

When driving a large capacitive load, a resistor of 500Ω

is recommended to be connected between the op amp

output and the capacitive load to avoid oscillation.

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