LMC6484MN NSC [National Semiconductor], LMC6484MN Datasheet

LMC6484MN

Manufacturer Part Number

LMC6484MN

Description

CMOS Quad Rail-to-Rail Input and Output Operational Amplifier

Manufacturer

NSC [National Semiconductor]

Datasheet

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LMC6484

CMOS Quad Rail-to-Rail Input and Output Operational

Amplifier

General Description

The LMC6484 provides a common-mode range that extends

to both supply rails. This rail-to-rail performance combined

with excellent accuracy, due to a high CMRR, makes it

unique among rail-to-rail input amplifiers.

It is ideal for systems, such as data acquisition, that require

a large input signal range. The LMC6484 is also an excellent

upgrade for circuits using limited common-mode range am-

plifiers such as the TLC274 and TLC279.

Maximum dynamic signal range is assured in low voltage

and single supply systems by the LMC6484’s rail-to-rail out-

put swing. The LMC6484’s rail-to-rail output swing is guaran-

teed for loads down to 600 .

Guaranteed low voltage characteristics and low power dissi-

pation make the LMC6484 especially well-suited for

battery-operated systems.

See the LMC6482 data sheet for a Dual CMOS operational

amplifier with these same features.

3V Single Supply Buffer Circuit

Rail-to-Rail Input

DS011714

DS011714-1

Features

(Typical unless otherwise noted)

n Rail-to-Rail Input Common-Mode Voltage Range

n Rail-to-Rail Output Swing (within 20 mV of supply rail,

n Guaranteed 3V, 5V and 15V Performance

n Excellent CMRR and PSRR: 82 dB

n Ultra Low Input Current: 20 fA

n High Voltage Gain (R

n Specified for 2 k

Applications

n Data Acquisition Systems

n Transducer Amplifiers

n Hand-held Analytic Instruments

n Medical Instrumentation

n Active Filter, Peak Detector, Sample and Hold, pH

n Improved Replacement for TLC274, TLC279

(Guaranteed Over Temperature)

100 k

Meter, Current Source

DS011714-2

load)

Rail-to-Rail Output

and 600

= 500 k ): 130 dB

loads

DS011714-3

www.national.com

May 1999

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