LPC661AIM National Semiconductor, LPC661AIM Datasheet - Page 10

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LPC661AIM

Manufacturer Part Number
LPC661AIM
Description
IC OP AMP LOW PWR CMOS 8-SOIC
Manufacturer
National Semiconductor
Datasheet

Specifications of LPC661AIM

Amplifier Type
General Purpose
Number Of Circuits
1
Output Type
Rail-to-Rail
Slew Rate
0.11 V/µs
Gain Bandwidth Product
350kHz
Current - Input Bias
0.002pA
Voltage - Input Offset
1000µV
Current - Supply
58µA
Current - Output / Channel
40mA
Voltage - Supply, Single/dual (±)
4.75 V ~ 15.5 V, ±2.38 V ~ 7.75 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
-3db Bandwidth
-
Other names
*LPC661AIM
www.national.com
Application Hints
FIGURE 6. Non-Inverting Amplifier
FIGURE 5. Inverting Amplifier
Guard Ring Connections
Guard Ring Connections
Guard Ring Connections
FIGURE 7. Follower
FIGURE 4. Example of Guard Ring in P.C. Board Layout, Using the LPC660
(Continued)
DS011227-11
DS011227-9
DS011227-10
10
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-
struction, but the advantages are sometimes well worth the
effort of using point-to-point up-in-the-air wiring. See Figure
9 .
FIGURE 8. Howland Current Pump
Guard Ring Connections
DS011227-8
DS011227-12