km4112 Fairchild Semiconductor, km4112 Datasheet - Page 7

• Manufacturer Part Number: km4112
• Description: 70a, Low Cost, 2.7v & 5v, 7.3mhz Rail-to-rail Amplifier
• Manufacturer: Fairchild Semiconductor

KM4112
Layout Considerations
General layout and supply bypassing play major roles
in high frequency performance. Fairchild has evaluation
boards to use as a guide for high frequency layout
and to aid in device testing and characterization.
Follow the steps below as a basis for high frequency
layout:
Refer to the evaluation board layouts shown in Figure
6 for more information.
Evaluation Board Information
The following evaluation boards are available to aid
in the testing and layout of this device:
Evaluation board schematics and layouts are shown in
Figure 5 and Figure 6.
REV. 2 July 2001
Eval Board
KEB002
I
I
I
I
I
Include 6.8µF and 0.01µF ceramic capacitors
Place the 6.8µF capacitor within 0.75 inches
of the power pin
Place the 0.01µF capacitor within 0.1 inches
of the power pin
Remove the ground plane under and around the
part, especially near the input and output pins to
reduce parasitic capacitance
Minimize all trace lengths to reduce
series inductances
Single Channel,
Dual Supply 5 & 6 lead SOT23
Description
KM4112IT5
Products
The KEB002 evaluation board is built for dual supply
operation. Follow these steps to use the board in a
single supply application:
1. Short -V
2. Use C3 and C4, if the -V
directly connected to the ground plane.
Figure 5: Evaluation Board Schematic
s
to ground
s
pin of the KM4112 is not
DATA SHEET
7