LF411

Low Offset, Low Drift JFET Input Operational Amplifier

General Description

These devices are low cost, high speed, JFET input opera-

tional amplifiers with very low input offset voltage and guar-

anteed input offset voltage drift. They require low supply

current yet maintain a large gain bandwidth product and fast

slew rate. In addition, well matched high voltage JFET input

devices provide very low input bias and offset currents. The

LF411 is pin compatible with the standard LM741 allowing

designers to immediately upgrade the overall performance of

existing designs.

These amplifiers may be used in applications such as high

speed integrators, fast D/A converters, sample and hold

circuits and many other circuits requiring low input offset

voltage and drift, low input bias current, high input imped-

ance, high slew rate and wide bandwidth.

Features

n

Internally trimmed offset voltage:

0.5 mV(max)

n

Input offset voltage drift:

10 µV/˚C(max)

n

Low input bias current:

50 pA

n

Low input noise current:

0.01 pA/

n

Wide gain bandwidth:

3 MHz(min)

n

High slew rate:

10V/µs(min)

n

Low supply current:

1.8 mA

n

High input impedance:

10

12

Ω

n

Low total harmonic distortion:

≤0.02%

n

Low 1/f noise corner:

50 Hz

n

Fast settling time to 0.01%:

2 µs

Typical Connection

00565501

Ordering Information

LF411XYZ

X indicates electrical grade

Y indicates temperature range

“M” for military

“C” for commercial

Z indicates package type

“H” or “N”

Connection Diagrams

Metal Can Package

00565505

Note: Pin 4 connected to case.

Top View

Order Number LF411ACH

or LF411MH/883 (Note 11)

See NS Package Number H08A

Dual-In-Line Package

00565507

Top View

Order Number LF411ACN, LF411CN

See NS Package Number N08E

August 2000

© 2004 National Semiconductor Corporation

DS005655

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