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Amplifier Circuits:  Operational   Page 17
Operational Amplifiers:  #-A        B-C      D-K       L-N       O       P-S        T-Z 

Amplifier -- Main Page

Last Updated on: Wednesday, July 16, 2014 06:34 AM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:
Opamp Booster Designs  -  National Semiconductor Application Note 09-Apr-1996 (app note added 4/02)
OpAmp can source or sink current -  03/02/06 EDN-Design Ideas  Bipolar current source beats familiar Howland-current pump....[Design Idea added 10/06] EDN migrating links. This link is not verified.  Google the "title" EDN for new link.
Opamp Circuit Collection  -  National Semiconductor Application Note 04-Nov-1995 (app note added 4/02)
Opamp Design & Test Board -  Quickly assemble an opamp circuit for testing.  Very easy and intuitive to use  (electronic schematic / circuit added 4/02)
OpAmp Doubles as Instrumentation Amp -  09/15/94 EDN-Design Ideas  The circuit in Fig 1 shows an ordinary, off-the-shelf, general-purpose op amp configured as an instrumentation amplifier. Such a configuration yields an instrumentation amplifier having higher bandwidth than currently available dedicated instrumentation..../....[Design Idea added 4/02] EDN migrating links. This link is not verified.  Search the "title" + "EDN" for new link.
OpAmp Improves Power Supply's Regulation -  06/06/96 EDN-Design Ideas  A typical power supply has a voltage-regulation specification of 2 to 3% for all conditions, including initial setting, line, load, and temperature. You can improve regulation if the power-supply has remote-sensing capability, however....[Design Idea added 5/03] EDN migrating links. This link is not verified.  Search the "title" + "EDN" for new link.
OpAmp Increases Potentiometer's Resolution -  06/05/00 EDN-Design Ideas  A key parameter of digitally controlled potentiometers (DCPs] is the number of taps (n] programmable positions of the wiper.  This parameter establishes the resolution in  programmable-voltage and -current applications. A number of circuit....PDF has many circuits, please scroll to find this one.... [Design Idea by Chuck Wojslaw, Xicor Inc, Milpitas, CA, and P Gareth Lloyd, Elab Ltd, Stoke-on-Trent, UK]
Opamp Integrator -  The integrator basically works like this: whatever current I you get flowing in R1, gets integrated across capacitor C1. The output voltage Vo is simply the voltage across C1. One great application of the integrator is generating a ramp voltage. You can do this by placing a fixed voltage....(electronic schematic design added 02/05)
OpAmp Linearizes Attenuator Control Response -  07/25/02 EDN-Design Ideas:    Professional-audio equipment commonly uses Analog Devices' (www.analog.com] high-performance, quad-voltage-controlled SSM2164 attenuator. The control response is -30 dB/V, with 0V producing unity gain. Attenuation increases as the applied....[Design Idea added 03/03/03] EDN migrating links. This link is not verified.  Google the "title" EDN for new link.
OpAmp Linearizes Response of FET Vca -  09/05/02 EDN-Design Ideas  FETs find common use in VCAs (voltage-controlled amplifiers]and attenuators, in which the FET serves as a variable resistance. A control voltage applied to the gate sets the channel resistance and overall circuit gain....[Design Idea added 03/03/03] EDN migrating links. This link is not verified.  Search the "title" + "EDN" for new link.
OpAmp Makes Precise 9 Volt Battery Splitter -  07/17/97 EDN-Design Ideas:    -Alkaline 9V batteries are ideal for many portable, handheld applications, this circuit generates a bipolar supply of5V and ­2.3 to ­4V using a precision5V reference and one op amp as a supply splitter....[Design Idea added 03/03/03] EDN migrating links. This link is not verified.  Search the "title" + "EDN" for new link.
Op-Amp Microphone Preamplifier -  A high quality microphone preamplifier using a single power supply, suitable for dynamic or electret microphones. The opamp used can be any low noise, high performance type, e.g. NE5534,TL071, OPA 371 etc….(schematic added 01/2010)
OpAmp Oscillators Simplify RF Designs -  10/10/96 EDN-Design Ideas  [Design Idea added 03/03/03] EDN migrating links. This link is not verified.  Search the "title" EDN for new link.
Opamp Radio (Aaron Cake) -  (electronic schematic / circuit added 04/03/02)
OpAmp Rectifier Signals Input State -  07/21/94 EDN-Design Ideas  The op-amp rectifier in Fig 1 operates from a single supply and provides a logic output and an LED that indicate the state of the input voltage. The input-state indications are handy for calibration. Because the circuit operates from a single supply, the 2.5V reference determines the level around which the circuit rectifies input waveforms....[Design Idea added 03/03/03] EDN migrating links. This link is not verified.  Google the "title" EDN for new link.
OpAmp Stall-Motor Switch Machine Drivers -  The circuits on this page are switch machine drivers that can be used to operate Stall-Motor type switch machine motors. The circuits use LM324 Quad or 358 Dual operational Amplifier chips to provide a PUSH-PULL output to reverse the polarity of the supply to the switch machine motors. [from Rob Paisley's Model Train web site]
Op-Amps Basic Circuits for the beginner. -  The 7 Basic Circuit Configurations for op-amps  ….(electronic schematic added 12/08)
Operational Amplifier AC Specifications & Applications -  Microchip Application Note Published 3-Apr-01  (app note added 2/06)
Operational Amplifier Selection Guide for Optimum Noise Performance #2 -  DN3  Design Notes (Linear Technology) (app note added 1/06)
Operational Amplifier Topologies & DC Specifications -  Microchip Application Note Published 3-Apr-01  (app note added 2/06)
Operational Integrators -  AN-357 Analog Devices Application Notes  (app note added 6/06)
Optical Magnetic Projection Booth System -  (diagram added 6/03)

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