February 2006

11

M9999-022706

MIC860

Micrel, Inc.

Applications Information

Power Supply Bypassing

Regular supply bypassing techniques are recommended.

A 10µF capacitor in parallel with a 0.1µF capacitor on both

the positive and negative supplies are ideal. For best perfor-

mance 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.

Supply and Loading Considerations

The MIC860 is intended for single supply applications con-

figured with a grounded load. It is not advisable to operate

the MIC860 with either:

1). A grounded load and split supplies (+/-V) or

2). A single supply where the load is terminated above

ground.

Under the above conditions, if the load is less than 20kOhm

and the output swing is greater than 1V(peak), there may be

some instability when the output is sinking current.