Amplifiers Home - Operational Amplifiers (Op Amp), Comparator, Differential Amp, High-Speed Video Amp, RF Power Detector, Variable Gain Amp (VGA) from National Semiconductor

Amplifiers

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High-Speed Op Amps

  • LMH6517 - Low Power, High Linearity IF and Baseband Dual 16 bit ADC Driver With Digitally Controlled Gain
  • LMH6553 - 900 MHz Fully Differential Amplifier with Output Limiting Clamp
  • LMH6554 - 2.5 GHz Ultra Linear Fully Differential Amplifier
  • LMH7322 / LMH7324 - Dual 700 ps High Speed Comparators with RSPECL Outputs
  • LMH7220 - High Speed Comparator with LVDS Output
  • LMH6515 - 600 MHz, Digital Controlled, Variable Gain Amplifier
  • LMH6582 / LMH6583 - 16 x 8 550 MHz Analog Crosspoint Switch (Gain of 1 / Gain of 2)

Precision Amplifiers

  • LMP8601 / LMP8602 / LMP8603 - 60V Common Mode 20x/50x/100x Gain Bidirectional Precision Current Sensing Amplifiers
  • LMP8100 - Programmable Gain Amplifier
  • LMP7300 - Micropower Precision Comparator and Precision Reference with Adjustable Hysteresis
  • LMP7717 / LMP7718 - 88 MHz, Precision, Low Noise, 1.8V CMOS Input, Decompensated Operational Amplifier
  • LMP7731 / LMP7732 - 2.9 nV/sqrt(Hz) Low Noise, Precision, RRIO, Operational Amplifier in SOT23-5
  • LMP2021 / LMP2022 - Single/Dual Zero Drift, Low Noise, EMI Hardened Amplifier

Low Voltage/Low Power Op Amps

  • LPV521 - Nanopower, 1.8V, RRIO, CMOS Input, Operational Amplifier
  • LMV841 / LMV842 / LMV844 - CMOS Input, RRIO, Wide Supply Range Operational Amplifiers
  • LMV841Q - CMOS Input, RRIO, Wide Supply Range Operational Amplifiers
  • LMV551 / LMV552 / LMV554 - 3 MHz, Micropower RRO Amplifier
  • LMV651 / LMV652 / LMV654 - 12 MHz, Low Voltage, Low Power Amplifier

 

New Signal Path Designer Articles

Published every other month, National's Power Designer articles provide expert tips, tricks, and techniques for powerful designs.

  • SPD-120: Going Beyond the Front End (Intro to the LMP8358 Instrumentation Amplifier)
  • SPD-119: Driving High-Speed Signals in Data Center Servers and Storage Area Networks
  • SPD-118: PowerWise® Class G versus Class AB Headphone Amplifiers
  • SPD-117: JTAG Advanced Capabilities and System Design
  • See more Signal Path Designer articles


Browse Amplifier App Notes & Technical Documents

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LMV7231 Hex Window Comparator Demo

Jason demonstrates the LMV7231 hex window comparator with 1.5% precision and 400mV reference.

Loading video...
 
  • High accuracy voltage reference: 400 mV
  • Threshold Accuracy: ±1.5% (max)
  • Wide supply voltage range +2.2V to +5.5V
  • Internal hysteresis: 6mV
  • Propagation delay: 7 µs
  • Supply Current 7µA per channel
  • 24 lead LLP package
  • Temperature range: −40°C to 125°C

Browse All Amplifier Videos

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Universal Op Amp Eval Boards (Unpopulated)

National's blank universal op amp eval boards enable quick evaluation of most low voltage, low power op amps. These unpopulated boards are double-sided for different pinouts and support popular passive component sizes: 1206, 0805, and, 0603.

 

Browse All Amplifier Eval Boards & Reference Designs

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WEBENCH® Online Design Software

Models

Op Amp Selguide Software Download

Calculator Tools

 

 

 

E-Learning Seminars

Amplifier Fundamentals

Amplifier Advanced

Documents

Fundamentals

  • AN-A - The Monolithic Operational Amplifier: A Tutorial Study
  • AN-4 - Monolithic Op Amp: The Universal Linear Component
  • LB-19 - Predicting Op Amp Slew Rate Limited Response
  • AN-104 - Noise Specs Confusing?
  • OA-30 - Current vs. Voltage Feedback Amplifiers
  • AN-779 - A Basic Introduction to Filters - Active, Passive and Switched-Capacitor

Circuit Examples

  • AN-31 - Op Amp Circuit Collection
  • AN-20 - An Application Guide for Op Amps

Good Stuff

Product Seminars

Recommended Reading

The Art of Electronics (AKA "AoE")
Horowitz, Paul
Hill, Winfield
Hardcover, 1125 pages, 2nd edition (1989), $69.95
Cambridge University Press, ISBN:0-5213-7095-7

Operational Amplifiers (EDN Series for Design Engineers)
Dostal, Jiri
Hardcover, 387 pages, 2nd edition (1993), $72.95
Butterworth-Heinemann, ISBN:0-7506-9317-7

IC Op-Amp Cookbook
Jung, Walter J.
Textbook Binding, 3rd edition  (May 1998), $29.95
 Prentice Hall PTR, ISBN: 0-1388-9601-1 

Troubleshooting Analog Circuits (EDN Series for Design Engineers)
Pease, Robert A.
Paperback, 224 pages (December 1993), $23.96
Butterworth-Heinemann (Trd), ISBN: 0-7506-9499-8

Design with Operational Amplifiers and Analog Integrated Circuits
Franco, Sergio
Hardcover, 688 pages, 2nd edition (August 1997), $112
McGraw-Hill Higher Education, ISBN: 0-0702-1857-9

Optimizing Op Amp Performance
Graeme, Jerald
Hardcover, 226 pages (December 1996), $55.00
McGraw-Hill Professional Publishing, ISBN: 0-0702-4522-3

 

Lancaster's Active Filter Cookbook
Lancaster, Don
Paperback, 240 pages, 2nd edition (August 1996), $29.95
Butterworth-Heinemann, ISBN: 0-7506-2986-X

Simplified Design of IC Amplifiers (EDN Series for Design Engineers)
Lenk, John D.
Paperback, 240 pages (June 1996), $29.95
Butterworth-Heinemann, ISBN: 0-7506-9508-0 

Analysis and Design of Analog Integrated Circuits - 3rd Ed.
Gray, Paul R.
Meyer, Robert G. 
Hardcover, Aug-92, $118.00
Wiley-Interscience, ISBN:0-4715-7495-3

Passive Components for Circuit Design
Sinclair, Ian
Paperback, 295 pages (January 15, 2001), $37.95
Butterworth-Heinemann, ISBN: 0-7506-4933-X

Noise Reduction Techniques in Electronic Systems - Second Edition
Ottr, Henry
Hardcover, 448 pages (March 9, 1988), $94.95
John Wiley & Sons, ISBN: 0471850683