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KM4121 View Datasheet(PDF) - Fairchild Semiconductor

Part Name
Description
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KM4121 Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
www.fairchildsemi.com
KM4111/KM4121
0.2mA, Low Cost, +2.7V & +5V, 35MHz Rail-to-Rail Amplifiers
Features
I 208µA supply current
I 35MHz bandwidth
I Power down to Is = 35µA (KM4121)
I Fully specified at +2.7V and +5V supplies
I Output voltage range: 0.08V to 4.88V; Vs = +5
I Input voltage range: -0.3V to +3.8V; Vs = +5
I 27V/µs slew rate
I ±8.5mA linear output current
I ±13mA short circuit output current
I 21nV/Hz input voltage noise
I Directly replaces MAX4281
I Small package options (SOT23-5 and SOT23-6)
Applications
I Portable/battery-powered applications
I A/D buffer
I Active filters
I Signal conditioning
I Portable test instruments
KM4111/KM4121 Packages
SOT23-5 (KM4111)
Out 1
5 +Vs
-Vs 2
+In 3
4 -In
General Description
The KM4111 (single) and KM4121 (single with disable)
are ultra-low power, low cost, voltage feedback
amplifiers. These amplifiers use only 208µA of supply
current and are designed to operate on +2.7V, +5V,
or ±2.5V supplies. The input voltage range extends
300mV below the negative rail and 1.2V below the
positive rail.
The KM4111 offers high bipolar performance at a
low CMOS price. The KM4111 offers superior dynamic
performance with a 35MHz small signal bandwidth
and 27V/µs slew rate. The combination of lowpower,
high bandwidth, and rail-to-rail performance make
the KM4111 well suited for battery-powered commu-
nication/computing systems.
Non-Inverting Freq. Response Vs = +5V
G=2
0.1
1
10
100
Frequency (MHz)
SOT23-6 (KM4121)
Out 1
6 +Vs
-Vs 2
5 DIS
+In 3
4 -In
REV. 1B June 2001
 

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