LF147, LF347-N

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SNOSBH1D – MAY 1999 – REVISED MARCH 2013

LF147/LF347 Wide Bandwidth Quad JFET Input Operational Amplifiers

Check for Samples: LF147, LF347-N

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FEATURES

DESCRIPTION

The LF147 is a low cost, high speed quad JFET input

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•

Internally Trimmed Offset Voltage: 5 mV max

operational amplifier with an internally trimmed input

•

Low Input Bias Current: 50 pA

offset voltage ( BI-FET II™ technology). The device

•

Low Input Noise Current: 0.01 pA/

√Hz

requires a low supply current and yet maintains a

large gain bandwidth product and a fast slew rate. In

•

Wide Gain Bandwidth: 4 MHz

addition, well matched high voltage JFET input

•

High Slew Rate: 13 V/

μs

devices provide very low input bias and offset

•

Low Supply Current: 7.2 mA

currents. The LF147 is pin compatible with the

standard LM148. This feature allows designers to

•

High Input Impedance: 1012

Ω

immediately upgrade the overall performance of

•

Low Total Harmonic Distortion:

≤0.02%

existing LF148 and LM124 designs.

•

Low 1/f Noise Corner: 50 Hz

The LF147 may be used in applications such as high

•

Fast Settling Time to 0.01%: 2

μs

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

hold circuits and many other circuits requiring low

input offset voltage, low input bias current, high input

impedance, high slew rate and wide bandwidth. The

device has low noise and offset voltage drift.

Simplified Schematic

Connection Diagram

¼ Quad

LF147 available as per JM38510/11906.

Figure 1. 14-Pin PDIP / CDIP / SOIC

Top View

See Package Number J0014A, D0014A or

NFF0014A

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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

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BI-FET II is a trademark of dcl_owner.

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All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 1999–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.