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Product details

Parameters

Number of channels (#) 4 Total supply voltage (Max) (+5V=5, +/-5V=10) 36 Total supply voltage (Min) (+5V=5, +/-5V=10) 7 Rail-to-rail In to V+ GBW (Typ) (MHz) 3 Slew rate (Typ) (V/us) 13 Vos (offset voltage @ 25 C) (Max) (mV) 10 Iq per channel (Typ) (mA) 2 Vn at 1 kHz (Typ) (nV/rtHz) 18 Rating Catalog Operating temperature range (C) 0 to 70 Offset drift (Typ) (uV/C) 10 Features Input bias current (Max) (pA) 200 CMRR (Typ) (dB) 100 Output current (Typ) (mA) 31 Architecture FET open-in-new Find other General-purpose op amps

Package | Pins | Size

PDIP (N) 14 181 mm² 19.3 x 9.4 SOIC (D) 14 52 mm² 8.65 x 6 open-in-new Find other General-purpose op amps

Features

  • 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
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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.

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Technical documentation

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Type Title Date
* Data sheet LF347, LF347B JFET-Input Quad Operational Amplifiers datasheet (Rev. C) Mar. 31, 2016
Application note 연산 증폭기 사양에 대한 이해 (Rev. A) Feb. 23, 2020
Application note Understanding Operational Amplifier Specifications (Rev. A) Feb. 13, 2020
Technical article What is an op amp? Jan. 21, 2020
Technical article How to lay out a PCB for high-performance, low-side current-sensing designs Feb. 06, 2018
Technical article Low-side current sensing for high-performance cost-sensitive applications Jan. 22, 2018
Technical article Voltage and current sensing in HEV/EV applications Nov. 22, 2017
E-book The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Application note Handbook of Operational Amplifier Applications (Rev. B) Sep. 19, 2016
Application note Get Fast Stable Response From Improved Unity-Gain Followers Oct. 02, 2002
Application note Get More Power Out of Dual or Quad Op-Amps Oct. 02, 2002

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Design tools & simulation

SIMULATION MODEL Download
SLOJ038.ZIP (0 KB) - PSpice Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOL Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide
CALCULATION TOOL Download
Analog engineer's calculator
ANALOG-ENGINEER-CALC — The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
Features
  • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
    • Noise calculations
    • Common unit translation
  • Solves common amplifier circuit design problems
    • Gain selections using standard resistors
    • Filter configurations
    • Total noise for common amplifier configurations
  • (...)

CAD/CAE symbols

Package Pins Download
PDIP (N) 14 View options
SOIC (D) 14 View options

Ordering & quality

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