LMC6022IM NSC [National Semiconductor], LMC6022IM Datasheet - Page 9

• Manufacturer Part Number: LMC6022IM
• Description: Low Power CMOS Dual Operational Amplifier
• Manufacturer: NSC [National Semiconductor]

Application Hints
The designer should be aware that when it is inappropriate
to lay out a PC board for the sake of just a few circuits, there
is another technique which is even better than a guard ring
on a PC board: Don’t insert the amplifier’s input pin into the
board at all, but bend it up in the air and use only air as an in-
sulator. Air is an excellent insulator. In this case you may
have to forego some of the advantages of PC board con-
(a) Inverting Amplifier
FIGURE 4. Example of Guard Ring in P.C. Board Layout (Using the LMC6024)
(c) Follower
(Continued)
DS011236-11
FIGURE 5. Guard Ring Connections
DS011236-9
9
struction, but the advantages are sometimes well worth the
effort of using point-to-point up-in-the-air wiring. See Figure
6 .
(b) Non-Inverting Amplifier
(d) Howland Current Pump
DS011236-8
DS011236-12
DS011236-10
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