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 cur-

rent 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 cir-

cuits and many other circuits requiring low input offset volt-

age and drift, low input bias current, high input impedance,

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:

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

R

n Low 1/f noise corner:

50 Hz

n Fast settling time to 0.01%:2 µs

Typical Connection

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

DS005655-1

Metal Can Package

DS005655-5

Note: Pin 4 connected to case.

Top View

Order Number LF411ACH

or LF411MH/883 (Note 1)

See NS Package Number H08A

Dual-In-Line Package

DS005655-7

Top View

Order Number LF411ACN,

LF411CN or LF411MJ/883 (Note 1)

See NS Package Number N08E or J08A

April 1998

© 1999 National Semiconductor Corporation

DS005655

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