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Four Quadrant Multiplier Circuits
Last Updated on: Monday, July 11, 2016 02:00 PM


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

4 ICs implement video AGC & DC restore -  06/18/98 EDN Design Idea   (Several design ideas on this page, scroll to find this one)  Four ICs--a multiplier, a sync separator, an op Amp, and a dc-restore IC--along with a handful of passive components can implement a complete AGC and dc-restore circuit for video signals (Figure 1). . .  [by Tamara Ahrens and Mike Wong, Elantec Semiconductor Inc, Milpitas, CA] 

4-quadrant power supply provides any-polarity voltage and current -  01//08/04 EDN Design Idea   A conventional power supply operates only in the first quadrant; positive-voltage output and current are sourced to a load or, with a deliberately miswired output, statically in the third quadrant as a "minus" supply. The conventional. . .  [by Jon Munson, Linear Technology App Note - , Milpitas, CA]

A New Current-Differencing Quad of Plus or Minus Input Amplifiers -  Application Note. . .  [National Semiconductor]

AN-1110:LVDS Quad Dynamic I Cc vs Frequency -  Application Note. . .  [National Semiconductor]

AN-72: the LM3900: A New Current-Differencing Quad of Plus or Minus Input Amplifiers -  Application Note. . .  [National Semiconductor]

AN-74: LM139/LM239/LM339 a Quad of Independently Functioning Comparators -  Application Note. . .  [National Semiconductor]

AN-899: Operating & Evaluating Quadrature Modulators for Personal Communication Systems -  Application Note. . .  [National Semiconductor]

CLC730132 SOIC & Tssop Quad High-Speed Buffer Evaluation Boards -  Application Note. . .  [National Semiconductor]

CLC730145 SOIC & Tssop Quad High-Speed Buffer Evaluation Boards -  Application Note. . .  [National Semiconductor]

CMOS Quad Switches and Multiplexers -  Analog Devices-Analog Dialogue. . .  [by Van Aken, Roger]

Compact, Four-Quadrant Lock-In Amplifier Generates Two Analog Outputs -  12/15/09  EDN Design Idea   Generate a pair of quadrature-phase digital signals. . .  [by Stefano Salvatori and Marco Girolami, Universita Degli Studi Roma Tre, Rome, Italy]

Four ICs implement video AGC & DC restore -  06/18/98 EDN Design Idea   (Multiple circuits in file. Scroll to this one. ) Four ICs--a multiplier, a sync separator, an op Amp, and a dc-restore IC--along with a handful of passive components can implement a complete AGC and dc-restore circuit for video signals (Figure 1). The circuit consists of three m. . .  [by Tamara Ahrens and Mike Wong, Elantec Semiconductor Inc, Milpitas, CA] 

Four quadrant power supply provides any-polarity voltage and current -  01//08/04 EDN Design Idea   A conventional power supply operates only in the first quadrant; positive-voltage output and current are sourced to a load or, with a deliberately miswired output, statically in the third quadrant as a "minus" supply. The conventional. . .  [by Jon Munson, Linear Technology App Note - , Milpitas, CA]

Four-quadrant power supply provides any-polarity voltage and current -  01//08/04 EDN Design Idea   A conventional power supply operates only in the first quadrant; positive-voltage output and current are sourced to a load or, with a deliberately miswired output, statically in the third quadrant as a "minus" supply. The conventional. . .  [by Jon Munson, Linear Technology App Note - , Milpitas, CA]

LB-44: Linear Brief 44 Get More Power Out of Dual or Quad Op-Amps -  Application Note. . .  [National Semiconductor]

LM139/LM239/LM339 a Quad of Independently Functioning Comparators -  Application Note. . .  [National Semiconductor]

LVDS Quad Dynamic I Cc vs Frequency -  Application Note. . .  [National Semiconductor]

New Current-Differencing Quad of Plus or Minus Input Amplifiers -  Application Note. . .  [National Semiconductor]

Operating & Evaluating Quadrature Modulators for Personal Communication Systems -  Application Note. . .  [National Semiconductor]

Quad HDMI Input, Fast Switching Multiplexer Using the ADV7612 Receiver with Extended Temperature Range  -  A software package is available showing how to handle communication and authentication in an HDMI repeater application (see http://www. ez. analog. com/community/video. . .  [Analog Devices-Circuits from the Lab] 

Quad Output Switching Converter Provides Power for Large TFT LCD Panels -  DN349 Design Notes (Linear Technology). . .  [Linear Technology]

Quadraphonic Amplifier -  This is a four channel Amplifier ideally suited for use with quadraphonic equipment such as a Sound Blaster Live card. There is no volume control, audio levels being directly controlled from the sound card itself. . . .  [Andy Collison]

Quadrature (sine/cosine) voltage controlled oscillator -  Several schematics on this page, scroll to find this one. This is a voltage controlled oscillator with a difference: it gives a quadrature output which is shaped as shown in the diagram, with an output which approximates to a sine/cosine waveform. . . .  [Page's Author: Richard Torrens]

Four Quadrant Multiplier Circuits


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