May 1995
LMC6582 Dual/LMC6584 Quad
Low Voltage, Rail-To-Rail Input and Output CMOS
Operational Amplifier
General Description
The LMC6582/4 is a high performance operational amplifier
which can operate over a wide range of supply voltages with
guaranteed specifications at 1.8V, 2.2V, 3V, 5V, and 10V.
Features
(Typical unless otherwise noted)
n Guaranteed Specs at 1.8V, 2.2V, 3V, 5V, 10V
n Rail-to-Rail Input Common-Mode Voltage Range
The LMC6582/4 provides an input common-mode voltage
range that exceeds both supplies. The rail-to-rail output
swing of the amplifier assures maximum dynamic signal
range. This rail-to-rail performance of the amplifier, com-
bined with its high open-loop voltage gain makes it unique
among rail-to-rail CMOS amplifiers. The LMC6582/4 is an
excellent choice for circuits where the input common-mode
voltage range is a concern.
n Rail-to-Rail Output Swing
(within 10 mV of supply rail, VS 3V and RL 10 kΩ)
n CMRR and PSRR: 82 dB
n Ultra Low Input Current:
=
=
@
80 fA
=
=
n High Voltage Gain (VS 3V, RL 10 kΩ): 120 dB
n Unity Gain Bandwidth: 1.2 MHz
Applications
n Battery Operated Systems
n Sensor Amplifiers
n Portable Communication Devices
n Medical Instrumentation
n Level Detectors, Sample-and-Hold Circuits
n Battery Monitoring
The LMC6582/4 has been designed specifically to improve
system performance in low voltage applications. Guaranteed
operation down to 1.8V means that this family of amplifiers
can operate at the end of discharge (EOD) voltages of sev-
eral popular batteries. The amplifier’s 80 fA input current, 0.5
mV offset voltage, and 82 dB CMRR maintain accuracy in
battery-powered systems.
For a single, dual or quad CMOS amplifier with similar specs
and
a powerdown mode, refer to the LMC6681/2/4
datasheet.
Connection Diagrams
8-Pin DIP/SO
14-Pin DIP/SO
DS012041-1
Top View
DS012041-2
Top View
© 1999 National Semiconductor Corporation
DS012041
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