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KM4112 Datasheet

  • KM4112

  • 70A, Low Cost, +2.7V & +5V, 7.3MHz Rail-to-Rail Amplifier

  • 9頁

  • FAIRCHILD

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www.fairchildsemi.com
KM4112
70碌A(chǔ), Low Cost, +2.7V & +5V, 7.3MHz Rail-to-Rail Amplifier
Features
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General Description
The KM4112 is an ultra-low power, low cost, voltage
feedback amplifier. The KM4112 uses only 70碌A(chǔ) of
supply current and is designed to operate on +2.7V,
+5V, or 鹵2.5V supplies. The input voltage range
extends 300mV below the negative rail and 1.2V
below the positive rail.
The KM4112 offers high bipolar performance at a low
CMOS price. The KM4112 offers superior dynamic
performance with a 7.3MHz small signal bandwidth
and 9V/碌s slew rate. The combination of low power,
high bandwidth, and rail-to-rail performance make
the KM4112 well suited for battery-powered commu-
nication/computing systems.
70碌A(chǔ) supply current
7.3MHz bandwidth
Fully specified at +2.7V and +5V supplies
Output voltage range: 0.04V to 4.96V; Vs = +5
Input voltage range: -0.3V to +3.8V; Vs = +5
9V/碌s slew rate
鹵4mA linear output current
鹵9mA short circuit output current
29nV/鈭欻z input voltage noise
Competes with low power CMOS amps
Small package option (SOT23-5)
Applications
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Normalized Magnitude (2dB/div)
Portable/battery-powered applications
A/D buffer
Active filters
Signal conditioning
Portable test instruments
Non-Inverting Freq. Response V
s
= +5V
G=
2
R
f
= 10k鈩?/div>
KM4112 Package
SOT23-5
Out
-V
s
+In
1
2
+
5
+V
s
-
0.01
0.1
1
10
3
4
-In
Frequency (MHz)
REV. 2 July 2001

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