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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

LF347, LF347B

SLOS013C – MARCH 1987 – REVISED MARCH 2016

LF347, LF347B JFET-Input Quad Operational Amplifiers

1

1 Features

1

•

Low Input Bias Current: 50 pA Typical

•

Low Input Noise Current: 0.01 pA/

√Hz Typical

•

Low Total Harmonic Distortion

•

Low Supply Current: 8 mA Typical

•

Gain Bandwidth: 3 MHz Typical

•

High Slew Rate: 13 V/ms Typical

2 Applications

•

Motor Integrated Systems: UPS

•

Drives and Control Solutions: AC Inverters and VF

Drives

•

Renewables: Solar Inverters

•

Pro Audio Mixers

•

Oscilloscopes

3 Description

The LF347 and LF347B devices are low-cost, high-

speed,

JFET-input

operational

amplifiers.

They

require low supply current yet maintain a large gain-

bandwidth product and a fast slew rate. In addition,

their matched high-voltage JFET inputs provide very

low input bias and offset current.

The LF347 and LF347B can be used in applications

such

as

high-speed

integrators,

digital-to-analog

converters, sample-and-hold circuits, and many other

circuits.

The LF347 and LF347B devices are characterized for

operation from 0°C to 70°C.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

LF347D, LF347BD

SOIC (14)

8.65 mm × 3.91 mm

LF347N, LF347BN

PDIP (14)

19.30 mm × 6.35 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Symbol (Each Amplifier)