LMC6462 Dual/LMC6464 Quad Micropower, Rail-to-Rail Input and Output CMOS Operational
Amplifier
May 1999
LMC6462 Dual/LMC6464 Quad
Micropower, Rail-to-Rail Input and Output CMOS
Operational Amplifier
General Description
The LMC6462/4 is a micropower version of the popular
LMC6482/4, combining Rail-to-Rail Input and Output Range
with very low power consumption.
The LMC6462/4 provides an input common-mode voltage
range that exceeds both rails. The rail-to-rail output swing of
the amplifier, guaranteed for loads down to 25 kΩ, assures
maximum dynamic sigal range. This rail-to-rail performance
of the amplifier, combined with its high voltage gain makes it
unique among rail-to-rail amplifiers. The LMC6462/4 is an
excellent upgrade for circuits using limited common-mode
range amplifiers.
The LMC6462/4, with guaranteed specifications at 3V and
5V, is especially well-suited for low voltage applications. A
quiescent power consumption of 60 µW per amplifier (at V
S
= 3V) can extend the useful life of battery operated systems.
The amplifier’s 150 fA input current, low offset voltage of
0.25 mV, and 85 dB CMRR maintain accuracy in
battery-powered systems.
Features
(Typical unless otherwise noted)
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Ultra Low Supply Current 20 µA/Amplifier
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Guaranteed Characteristics at 3V and 5V
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Rail-to-Rail Input Common-Mode Voltage Range
n
Rail-to-Rail Output Swing
(within 10 mV of rail, V
S
= 5V and R
L
= 25 kΩ)
n
Low Input Current 150 fA
n
Low Input Offset Voltage 0.25 mV
Applications
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n
n
n
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Battery Operated Circuits
Transducer Interface Circuits
Portable Communication Devices
Medical Applications
Battery Monitoring
8-Pin DIP/SO
14-Pin DIP/SO
DS012051-1
Top View
DS012051-2
Top View
© 1999 National Semiconductor Corporation
DS012051
www.national.com
NSC [ NATIONAL SEMICONDUCTOR ]
