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Amplifier Circuits: Operational Page
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Last Updated on:
Friday, March 23, 2012 04:29 PM |
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Links to electronic circuits,
electronic schematics, designs for engineers, hobbyists, students & inventors:
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Transimpedance Amplifier - You may have noticed that most circuits work on a
convenient principle: Voltage In, Voltage Out. But, what about the large class of
sensors, such as a photodiode, that produce a current? Photodiodes may be called into
action for applications such as precision light meters or high-speed fiber-optic
receivers. If you need to amplify the signal from this type of sensor, you must first
convert this current to a useful voltage....(spice design added 02/09) |
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Transimpedance synchronous amplification nulls out background illumination
- 3-Dec-07 Issue of EDN In optical spectroscopy a correct
intensity measurement of the probe beam is fundamental during material
characterization.... [Design Idea by Stefano Salvatori and Gennaro Conte,
University Roma Tre, Rome, Italy] |
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Tutorial on Applying OpAmps to RF Applications - National
Semiconductor Application Note (app note added 6/06) |
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Two op amps provide averaged absolute value - 30-Oct-03 Issue of
EDN 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 second stage, IC1B, is a traditional
differential amplifier. The combination of the two stages performs
single-ended absolute-value conversion but only if R3>>R2.... [Design Idea
by Dobromir Dobrev, Jet Electronics, Sofia, Bulgaria] |
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Two OpAmps Make Fast Full Wave Rectifier - 03/14/96 EDN-Design
Ideas The circuit in Figure 1 is a precision full-wave rectifier
with the following characteristics…. [Design Idea by Fernando Werlang,
CPqD-Telebras, Campinas, Brazil] |
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Two Wire Remote Microphone Amplifie - uses special amplifier
module from Op-Amp Labs (added 4/02) |
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