National Semiconductor | High-performance Analog


 LF155   

JFET Input Operational Amplifiers [Discontinued]
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Features

Advantages

  • Replace expensive hybrid and module FET op amps
  • Rugged JFETs allow blow-out free handling compared with MOSFET input devices
  • Excellent for low noise applications using either high or low source impedance-very low 1/f corner
  • Offset adjust does not degrade drift or common-mode rejection as in most monolithic amplifiers
  • New output stage allows use of large capacitive loads (5,000 pF) without stability problems
  • Internal compensation and large differential input voltage capability
  • Description

    These are the first monolithic JFET input operational amplifiers to incorporate well matched, high voltage JFETs on the same chip with standard bipolar transistors (BI-FET™ Technology). These amplifiers feature low input bias and offset currents/low offset voltage and offset voltage drift, coupled with offset adjust which does not degrade drift or common-mode rejection. The devices are also designed for high slew rate, wide bandwidth, extremely fast settling time, low voltage and current noise and a low 1/f noise corner.


    Applications

  • Precision high speed integrators
  • Fast D/A and A/D converters
  • High impedance buffers
  • Wideband, low noise, low drift amplifiers
  • Logarithmic amplifiers
  • Photocell amplifiers
  • Sample and Hold circuits
  • Also Recommended
    LM8261Wider Bandwidth,faster Slew Rate, Better Input Noise Voltage,Improved Offset Voltage



    Typical Application
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    Connection Diagram
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    Typical Performance
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    Datasheets
    TitleSizeDateOther
    Language
    LF155 JFET Input Operational Amplifiers1079
    Kbytes
    17-Dec-01   
    LF155 Mil-Aero (JAN) Datasheet MJLF155-X14 Kbytes 


    Application Notes
    TitleSizeDateOther
    Language
    AN-263: Application Note 263 Sine Wave Generation Techniques350
    Kbytes
    26-May-09 

    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LF155AH-MLS
    LF155
    LINEAR TECHNOLOGY
    08 Mar 2005
    LF155AH/883
    NONE
    NONE
    07 Jun 2001
    LF155H
    NONE
    NONE
    07 Jun 2001
    LF155H/883
    NONE
    NONE
    07 Jun 2001

    [Information as of 9-Feb-2012]