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Rail-to-Rail Voltage Follower/Buffer - Circuit Ideas for Designers Application
Notes Advanced Linear Devices, Inc. (app note added 6/06) |
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Rail-to-Rail Window Comparator-23008.0 - Circuit Ideas for Designers Application
Notes Advanced Linear Devices, Inc. (app note added 6/06) |
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RF Oscillator uses current feedback OpAmp - 10/03/02 EDN-Design Ideas: A
current-feedback amplifier is a well-known component with many uses. Its basic block
diagram shows that its input stage is a voltage follower—in practice, a symmetrical
emitter follower (Figure 1). The config.....(design idea added 6/06) |
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Selecting Op Amps for Precision 16-Bit DACs - DN214 Design Notes (Linear
Technology) (app note added 1/06) |
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Settling Time of Operational Amplifiers - AN-359 Analog Devices Application Notes
(app note added 6/06) |
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Simple Differential Front-End for the LTC2400 Simple Rail-To-Rail Circuit - Design
Solutions 2 Design Notes (Linear Technology) (app note added 1/06) |
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Simple Op Amp Radio (Bowden) - This is basically a crystal radio with an audio
amplifier which is fairly sensitive and receives several strong stations in the Los
Angeles area with a minimal 15 foot antenna. Longer antennas will provide a stronger
signal but the selectivity will be worse and strong stations may be heard in ...
(electronic circuit added 7/03) |
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Simple Timer Exploits OpAmp Bias Current - 07/21/94 EDN-Design Ideas: The simple,
low-cost analog timer in Fig 1 exploits the parasitic input-bias current of op-amp
IC1. The timer achieves long time delays even though it uses only low-value,
inexpensive ceramic chip capacitors. After all, because the input-bias current is the
minimum current flow into an op amp,.....(design idea added 5/03) |
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Simplified Test Set for Op Amp Characterization - National Semiconductor
Application Note (app note added 2/06) |
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Simulation SPICE Models for Comlinear's Op Amps - National Semiconductor
Application Note (app note added 2/06) |
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Single NiCd Cell Drives OpAmp - 12/05/96 EDN-Design Ideas: (design idea added
5/03) |
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Single OpAmp achieves double hysteresis transfer characteristic - 09/27/07
EDN-Design Ideas: An op amp combines with strategically placed zener diodes to yield a
process-control circuit that has positive- and negative-going hysteresis
bands.....(design idea added 09/08) |
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Single Op-Amp Bandpass Filter - A bandpass filter passes a range of frequencies
while rejecting frequencies outside the upper and lower limits of the passband. The
range of frequencies to be passed is called the passband and.... (added 2/07) |
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Single Polarity Powe Supply Circuit for 400 Series Amplifiers - (diagram added
6/03) |
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Slow OpAmp Makes Fast Multivibrator - 01/01/98 EDN-Design Ideas: (design idea
added 5/03) |
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SOT-23 Micropower Rail-to-Rail Op Amps Operate with Inputs Above the Positive Supply
- DN221 Design Notes (Linear Technology) (app note added 1/06) |
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SOT23-6 Op Amp Evaluation Board - National Semiconductor Application Note
(app note added 2/06) |
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Source Resistance Induced Distortion in Op Amps - DN84 Design Notes (Linear
Technology) (app note added 1/06) |
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Specifying Selected Op Amps & Comparators - National Semiconductor Application
Note (app note added 2/06) |
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SPICE Compatible Macromodel for CMOS Operational Amplifiers - National
Semiconductor Application Note (app note added 6/06) |
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SPICE-Compatible Op Amp Macro-Models - AN-138 Analog Devices Application Notes
(app note added 6/06) |
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Stability Analysis of Current Feedback Amplifiers - National Semiconductor
Application Note (app note added 2/06) |
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Summing Amplifier - The summing amplifier is a handy circuit enabling you to add
several signals together. What are some examples? If you're measuring temperature, you
can add a negative offset to make the display read "0" at the freezing point. On a
precision amplifier, you may need to add ...(spice design added 02/09) |
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SwOpAmp Makes Square Wave Generator - 02/15/96 EDN-Design Ideas: (design idea
added 5/03) |
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Synchronous Modulator - This unique circuit uses a very small amount of battery
current and has excellent carrier suppression. Its only shortcoming is that you must
limit the input signal to 0.7 Vp-p in order to prevent distortion. To use higher input
voltages, replace Q3 with a JFET. A MOSFET doesn’t do as well as an NPN transistor.
Designed by Andrew R. Morris (added 09/05) |
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Synchronous Modulator-1 - This is an OpAmp version of the synchronous modulator I
submitted earlier. It has more consistent performance over varying power supply
voltage than the discrete version, but it still has the 0.7 Vp-p limitation on the
maximum input voltage. You should use a JFET or a CMOS switch in place of Q1 if you
need to accommodate a higher input voltage.... Designed by Andrew R. Morris
(added 09/05) |
