www.fairchildsemi.com
KM4110/KM4120
0.5mA, Low Cost, +2.7V & +5V, 75MHz Rail-to-Rail Amplifiers
Features
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General Description
The KM4110 (single) and KM4120 (single with disable)
are low cost, voltage feedback amplifiers. These
amplifiers are 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 KM4110 offers superior dynamic performance
with a 75MHz small signal bandwidth and 50V/碌s
slew rate. The combination of low power, high
output current drive, and rail-to-rail performance
make the KM4110 well suited for battery-powered
communication/ computing systems.
The combination of low cost and high performance
make the KM4110 suitable for high volume applica-
tions in both consumer and industrial applications
such as wireless phones, scanners, and color copiers.
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505碌A(chǔ) supply current
75MHz bandwidth
Power down to Is = 33碌A(chǔ) (KM4120)
Fully specified at +2.7V and +5V supplies
Output voltage range: 0.07V to 4.86V; Vs = +5
Input voltage range: -0.3V to +3.8V; Vs = +5
50V/碌s slew rate
鹵15mA linear output current
鹵30mA output short circuit current
12nV/鈭欻z input voltage noise
Directly replaces AD8031 in single
supply applications
Small package options (SOT23-5 and SOT23-6)
Applications
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Portable/battery-powered applications
A/D buffer
Active filters
Signal conditioning
Portable test instruments
Non-Inverting Freq. Response V
s
= +5V
Normalized Magnitude (1dB/div)
0.1
G=2
R
f
= 1k鈩?/div>
KM4110/KM4120 Packages
SOT23-5 (KM4110)
Out
-V
s
+In
1
2
+
5
+V
s
-
3
4
-In
1
10
100
Frequency (MHz)
SOT23-6 (KM4120)
Out
-V
s
+In
1
2
+
6
5
4
+V
s
DIS
-In
-
3
REV. 1A February 2001
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