Electronic Circuits and electronic circuits, electronic schematics plus an extensive resource for hobbyists, inventors and engineers

DiscoverCircuits.com, has 40,000+ electronic circuits, cross-referenced
into 500+ categories.    We have searched the web to help you find quick design ideas.
We make every effort to link to original material posted by the designer. 
Please let us if you would like us to link to or post your design.

HOME Schematics Index Hobby Corner Dave's Circuits Electronic Resources Contact Info
Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches

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

Amplifier -- Main Page
 

Last Updated: April 07, 2016 01:00 PM

 


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

±120V Output Precision Op Amp -  Simple shunt regulators provide normal supply levels to the op Amp and the external open-loop gain and buffer structure extends the output swing to nearly the high-voltage rails. Output transistors are protected by current-limiting. . . .  [Linear Technology App Note - , Jun 21, 2011]

 

0A to 2A Current Source -  The LT1995 Amplifies the sense resistor drop by 5V/V and subtracts that from VIN, providing an error signal to an LT1880 integrator. The integrated error drives the PMOSFET as required to deliver the commanded current. . . .  [Linear Technology App Note - , Mar 31, 2010]

 

1 op Amp achieves double-hysteresis-transfer characteristic -  09/27/07  EDN Design Idea   An op Amp combines with strategically placed zener diodes to yield a process-control circuit that has positive- and negative-going hysteresis bands. . .  [by Herminio Martínez, Encarna García, and Juan Gámiz, Technical University of Catalonia, Barcelona, Spain]

1.5A Rail-to-Rail Output Synchronous Step-Down Regulator Adjusts with a Single Resistor -  02/03/14 - EDN Design Note   One wire brings power & data to LCD module - A new regulator architecture, the LTC3600 (first introduced with the LT3080 linear regulator), has wider output range and better regulation than traditional regulators. Using a precision 50μA current source and a voltage follower, the output is adjustable from 0V to close to VIN. Normally, the lowest output voltage is limited to the reference voltage. . .  [by Jeff Zhang, also see Linear Technology Design Note 506]

 

1µA Op Amp Permits Precision Portable Circuitry -  DN163  Design Notes (Linear Technology). . .  [Linear Technology]

 

100dB Range Logarithmic Photodiode Amplifier -  The photodiode current is processed by a form of trans-impedance Amplifier (TIA) that has a logarithmic I to V characteristic. The Vbe of the logging transistor is scaled and offset to properly represent the desired dynamic range. To prevent temperature variation from affecting the accuracy, another loop is used as a stabilized chip heater for the transistor array. . . .  [Linear Technology App Note - , Jun 21, 2011]

 

100MHz Op Amp Features Low Noise Rail-To-Rail Performance While Consuming Only 2.5ma -  DN308  Design Notes (Linear Technology). . .  [Linear Technology]

 

1Hz to 100MHz Voltage to Frequency Converter Has 160dB Dynamic Range, Runs from 5V Supply -  This circuit achieves a wider dynamic range and higher output frequency than any commercially available voltage to frequency (V→F) converter. Its 100MHz full scale output (10% over range to 110MHz is provided) is at least ten times faster than available units. The circuit’s 160dB dynamic range (8 decades) allows continuous . . .  [Linear Technology App Note - , Mar 25th 2010]

 

1Hz to 100MHz Voltage to Frequency Converter Has 160dB Dynamic Range, Runs from 5V Supply -  This circuit achieves a wider dynamic range and higher output frequency than any commercially available voltage to frequency (V→F) converter. Its 100MHz full scale output (10% over range to 110MHz is provided) is at least ten times faster than available units. The circuit’s 160dB dynamic range (8 decades) allows continuous . . .  [Linear Technology App Note - , Mar 25th 2010]

 

2 Op Amps Provide Averaged Absolute Value -  10/30/03  EDN Design Idea   The circuit in Figure 1 is useful when you need Amplitude demodulation or an averaged absolute-value conversion. The circuit comprises two stages, the first of which, IC1A, is a differential-output absolute-value converter. The sec. . .  [by Dobromir Dobrev, Jet Electronics, Sofia, Bulgaria]

 

2 OpAmps Make Fast Full Wave Rectifier -  03/14/96 EDN Design Idea   The circuit in Figure 1 is a precision full-wave rectifier with the following characteristics. . . .  [by Fernando Werlang, CPqD-Telebras, Campinas, Brazil]

 

30-Khz Bandwidth High Linearity Opto-Isolated Amplifier -  This application note presents isolation Amplifier circuit designs useful in industrial, instrumentation, medical, and communication systems. It covers the IL300’s coupling specifications, and circuit topologies for photovoltaic and photoconductive Amplifier design. . . .  [Vishay Semiconductors, Application Note 50]

 

3-op-amp state-variable filter perfects the notch -  12/15/14  EDN Design Idea   There are many variants of the state-variable filter, but this one might just have the best notch output(s). . . .  [EDN Design Idea]

 

324 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. . .  [from Rob Paisley's Model Train web site]

 

3V & 5V 12-Bit Rail-To-Rail Micropower DACs Combine Flexibility & Performance -  DN127  Design Notes (Linear Technology). . .  [Linear Technology]

 

3V Operation of Linear Technology Op Amps -  DN56  Design Notes (Linear Technology). . .  [Linear Technology]

 

3-V Precision Op Amps from Analog Devices -  Analog Devices-Analog Dialogue. . .  [by Buxton, Joe]

 

40 MHz Programmable Video Op Amp -  Application Note  . . .  [National Semiconductor]

 

40nVpp Noise, 0.05uV/C Drift, Chopped FET Amplifier -  For very high precision low frequency applications, chopping the dc input signal to create an ac signal and then synchronously demodulating the signal to restore the dc value eliminates all static dc errors of the components used. This is a high gain (Av=1001) example with excellent low offset voltage and drift with temperature . . .  [Linear Technology App Note - , Mar 16th 2010]

 

–48V Low Side Precision Current Sense -  This Amplifier configuration is essentially the complementary implementation to the classic high-side configuration. The op Amp used must support common-mode operation at its lower rail. A floating shunt-regulated local supply is provided by the Zener diode, and the transistor provides metered current to an output load . . .  [Linear Technology App Note - , Mar 31st 2010]

 

50MHz Thermistor RMS to DC Converter Using 5V Supply -  The LT1014 is the first precision quad operational Amplifier which directly upgrades designs in the industry standard 14-pin DIP LM324/LM348/OP-11/4156 pin configuration. It is no longer necessary to compromise specifications, while saving board space and cost, as compared to single operational Amplifiers. . . .  [Linear Technology App Note - , Mar 30th 2010]

 

5V Powered, Linearized Platinum RTD 0°C to 400°C ±0.05°C Signal Conditioner -  The LT1014 is the first precision quad operational Amplifier which directly upgrades designs in the industry standard 14-pin DIP LM324/LM348/OP-11/4156 pin configuration. It is no longer necessary to compromise specifications, while saving board space and cost, as compared to single operational Amplifiers. . . .  [Linear Technology App Note - , Mar 29th 2010]

 

5V Powered, Quartz-Stabilized 10kHz Voltage to Frequency Converter has 0.0015% Linearity and 8ppm/°C Temperature Coefficient -  Almost all precision voltage-to-frequency converters utilize charge pump based feedback for stability. These schemes rely on a capacitor for stability. A great deal of effort towards this approach has resulted in high performance V to F converters. Obtaining temperature coefficients below 100ppm/°C requires careful attention . . .  [Linear Technology App Note - , Mar 25th 2010]

 

741 Op-Amp Tutorial -  What exactly is an OPerational AMPlifier? Let's define what that component is and look at the parameters of this amazing device. An operational Amplifier IC is a solid-state integrated circuit that uses external feedback to control its functions. It is one of the most versatile devices in all of electronics. The term 'op-amp' was originally used to describe a chain of high performance dc Amplifiers that was used as a basis for the analog type computers of long ago. The very high gain op-amp IC's our days uses external feedback networks to control responses. The op-amp without any external devices is called 'open-loop' mode, referring actually to the so-called 'ideal' operational Amplifier. . . .  [written by Tony van Roon]

 

76V Over-the-Top® Input Op Amp Combines Precision, Versatility and Protection  -  With the increased-use of electronics in automotive and industrial applications, the need for robust and highly reliable components is essential to ensure a proper functioning system with low maintenance costs. Automotive applications, for example have hostile environments where electronic components may be exposed to a variety . . .  [Linear Technology App Note - , Arnold Nordeng Design Engineer-Signal Conditioning Products Mar 20th 2013]

 

8-Pin MSOP Dual Op Amp Evaluation Board -  Application Note  . . .  [National Semiconductor]

 

8-Pin Thermally Enhanced SOIC Psop Dual Op Amp Evaluation Board -  Application Note  . . .  [National Semiconductor]

 

PAGE  Next >>>>  

 
[Google-ADS/i-ad-728x15-Links.htm]

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


HOME Schematics Index Hobby Corner Dave's Circuits Electronic Resources Contact Info
Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches


 About Us   |  Advertise on DiscoverCircuits.com   |   Report Broken Links  |    Link to DiscoverCircuits.com  |    Privacy Policy

Copyright  2002 - 2015 David A. Johnson & Associates.  All Rights reserved. 
 Linking is ALLOWED but COPYING any content or graphics to your web site is EXPRESSLY PROHIBITED.