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General electronics circuit diagrams

Operational Amplifier (Op-Amp) Basics
Operational Amplifier (Op-Amp) Basics
December 29, 2010

The op-amp is basically a differential amplifier having a large voltage gain, very high input impedance and low output impedance. The op-amp has a "inverting" or (-) input and "noninverting" or (+) input and a... [more]

Transistor / Diode / IC (DIP) Outlines
Transistor / Diode / IC (DIP) Outlines
December 27, 2010

Transistor / Diode / IC (DIP) Outlines [more]

Voltage follower with 1G ohm input resistance
Voltage follower with 1G ohm input resistance
October 5, 2010

This circuit uses an LM11 to form a voltage follower with 1G ohm input resistance built using standard resistor values. With the input disconnected, the input offset voltage is multiplied by the same factor as... [more]

Op-Amp Booster Designs - PDF
Op-Amp Booster Designs - PDF
October 4, 2010

Although modern integrated circuit operational amplifiers ease linear circuit design, IC processing limits amplifier output power. Many applications, however, require substantially greater output voltage swing or current (or both) than IC amplifiers can deliver. In... [more]


circuit from:http://www.extremecircuits.net/2010/05/op-amp-booster-designs.html

Upto 73 Op-Amp Circuit Collection - PDF
Upto 73 Op-Amp Circuit Collection - PDF
October 4, 2010

Typically the op-amp's very large gain is controlled by negative feedback, which largely determines the magnitude of its output ("closed-loop") voltage gain in amplifier applications, or the transfer function required (in analog computers). Without negative... [more]


circuit from:http://www.extremecircuits.net/2010/05/upto-73-op-amp-circuit-collection-pdf.html

10,000x With One Transistor
10,000x With One Transistor
October 4, 2010

For a collector follower with emitter resistor, you’ll often find that the gain per stage is no more than 10 to 50 times. The gain increases when the emitter resistor is omitted. Unfortunately, the distortion... [more]


circuit from:http://www.extremecircuits.net/2010/05/10000x-with-one-transistor.html