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Electronic circuits and components * Course Index * Introduction * About the Author * About this Course * Feedback * Course Navigation * How to use this Course * TINA * Locktronics

Fundamentals * Introduction: Fundamentals * Units and Multiples * Electricity * Electronic Principles * Electrical Circuits * Alternating Current * Assessment: Fundamentals

Passive Components * Introduction: Passive Components * Resistors * Capacitors * Inductors * Transformers * Batteries, Fuses, Lamps and Switches * Assessment: Passive Components

Semiconductors * Introduction: Semiconductors * Diodes * Transistors * Logic Gates * Assessment: Semiconductors

Passive Circuits * Introduction: Passive Circuits * Series and Parallel Connections * Kirchoff's Laws * Potential and Current Dividers * Passive Time Variant Circuits * Assessment: Passive Circuits

Active Circuits * Introduction: Active Circuits * Power Supply Circuits * Operational Amplifier Circuits ## Symbols and Signal Connections ## Power Supply Connections ##

Dual Supply Configurations ## Voltage Gain ## Worksheet: Voltage Gain ## Input Resistance ## Output Resistance ## Input Offset Voltage ## Inverting Amplifier ## Worksheet: Inverting Amplifier ## Non-inverting Amplifier ## Worksheet: Non-inverting Amplifier ## Differential Amplifier ## Worksheet: Differential Amplifier ## Direct Coupled Amplifier ## Worksheet: Direct Coupled Amplifier * Transistor Amplifier Circuits * 555 Timer Circuits * Assessment: Active Circuits

Parts Gallery * Introduction: Parts Gallery * Passive Component Images * Semiconductor Images * Other Images * Quizzes

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OperationalAmplifierCircuits /

Dual Supply Configurations

<^< Power Supply Connections | Course Index | Voltage Gain >^>(:nl:)

Operational amplifier circuits often use two separate supplies; a positive supply and an equal, but opposite, negative supply. The common connection to these two supplies acts as the common 0V rail and the input and output voltages are usually measured relative to this rail. (:nl:)(:table style="clear:both":)

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Page last modified on July 25, 2011, at 01:54 PM