Operational Amplifiers

An operational amplifier (op-amp) is a circuit component used for signal amplification. An op-amp takes a differential voltage present at its two input terminals, typically labeled V+ and V-, and multiplies the difference (V+ - V-) by a gain factor G; driving out an amplified signal as a single ended output voltage. The op-amp is widely used to boost or amplify input signals to a desired output voltage. Op-amps are effective because of the large amount of gain, or amplification, they can produce. This enables them to be versatile in their implementation in various electronic circuit designs. 
Op-amps can take on a variety of different behaviors and characteristics primarily from the way they are configured with additional external components such as resistors, capacitors and inductors. 
An ideal op-amp has infinite open-loop gain, high input impedance and low output impedance. This enables maximum voltage gain, which can prove useful when trying to amplify a very small signal. However, utilizing resistors as negative feedback enables further control of the amount of gain an op-amp exhibits. All the external components that surround the op-amp add to its functionality. The gain, input impedance, output impedance and bandwidth are all determined by the surrounding components of the op-amp. 
Op-amps are commonly used in nearly all electronics today because of their versatility. They can be used as discrete packaged components on printed circuit boards or as a sub-component in an integrated circuit together with other types of circuits. Multiple op-amps can be used in a cascaded fashion to increase the amount of gain.

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CA3140EZ

4.5MHz, BiMOS Operational Amplifier with MOSFET Input/Bipolar Output
€1.55

CA3140EZ

Single channel operational Amplifier CA3140EZ
€1.86

CA3140EZ

4.5MHz, BiMOS Operational Amplifier with MOSFET Input/Bipolar Output
€1.86

CA3140EZ

Single channel operational Amplifier CA3140EZ
€1.46

CA3140EZ

4.5MHz, BiMOS Operational Amplifier with MOSFET Input/Bipolar Output
€1.86

LF356N

Wide bandwidth single J-FET operational amplifier LF356N
€1.10

LF356N

Wide bandwidth single J-FET operational amplifier LF356N
€1.32

LM3900N

Quad Norton Operational amplifier
€0.62

LM3900N

Quad Norton Operational amplifier
€1.98

LM3900N

Quad Norton Operational amplifier
€0.93

LM741CN

Operational Anplifier LM741CN
€0.71

LM741CN

Operational Anplifier LM741CN
€0.84

TL071CP

Operational Amplifier TL071CP
€0.65

TL071CP

Operational Amplifier TL071CP
€0.50

TL072CN

Low-Noise JFET-Input Operational Amplifier
€0.31

TL072CP

Low-Noise JFET-Input Operational Amplifier
€0.25

TL072CP

Low-Noise JFET-Input Operational Amplifier
€0.29

CA3130E

15MHz, BiMOS Operational Amplifier with MOSFET Input/CMOS Output
€1.43

LF444CN

Quad Low Power JFET Input Operational Amplifier
€1.55

LF444CN

Quad Low Power JFET Input Operational Amplifier
€1.12

LF444CN

Quad Low Power JFET Input Operational Amplifier
€1.08

LF444CN

Quad Low Power JFET Input Operational Amplifier
€1.74

LF444CN

Quad Low Power JFET Input Operational Amplifier
€1.74

TL082CN

General purpose JFET dual operation amplifiers
€0.59

TL082CP

General purpose JFET dual operation amplifier
€0.40

LM3900N

Quad Norton Operational amplifier
€0.87

LF353N

Dual operational Amplifir JFET
€0.93

LF353N

Dual operational Amplifir JFET
€0.65

LF353N

Dual operational Amplifir JFET
€0.99

LF353N

Dual operational Amplifir JFET
€0.93

LF353P

Dual operational Amplifir JFET
€0.34

LF412CN

Low Drift Dual JFET Input Operational Amplifier
€1.55

LF412CN

Low Drift Dual JFET Input Operational Amplifier
€1.55

LF412CN

Low Drift Dual JFET Input Operational Amplifier
€1.43

LM324N

Low Power Quad Operational Amplifiers
€0.81

LM324N

Quad operational amplifier
€0.37

LM324N

Quad operational amplifier LM324N
€0.50

UA741CN

General-Purpose Operational Amplifier
€0.31

UA741CP

General-Purpose Operational Amplifier
€0.31

LM358N

Low-Power, Dual-Operational Amplifier LM358N
€0.37

LM358P

Single Supply Dual Operational Amplifier
€0.43

LM358P

Single Supply Dual Operational Amplifier
€0.50

TL074CN

Quad Low-Noise JFET-Input Operational Amplifier
€0.22

TL074CN

Quad Low-Noise JFET-Input Operational Amplifier
€0.25

TL074CN

Quad Low-Noise JFET-Input Operational Amplifier
€0.33

TL074CN

Quad Low-Noise JFET-Input Operational Amplifier
€0.70

TL084CN

Quad JFET-Input Operational Amplifier
€0.70

TL084CN

Quad JFET-Input Operational Amplifier
€0.70

TL084CN

Quad JFET-Input Operational Amplifier
€0.70

TL084CN

Quad JFET-Input Operational Amplifier
€0.70

LM358P

Single Supply Dual Operational Amplifier
€0.09

LF351N

Single Wideband JFET Operational Amplifier
€0.62

LF351N

Single Wideband JFET Operational Amplifier
€0.93

NJM4558D

Dual high-gain internally compensated operational amplifier
€0.40

RC4558P

Dual high-gain internally compensated operational amplifier
€0.28

LM307N

General purpose operational amplifier, with the necessary frequency compensation built into the chip
€1.70

LM301AN

General purpose single channel operationl opamp
€1.21

UA301ATC

General purpose single channel operational amplifier
€1.12

NJM5534D

Op Amp Single Low Noise
€0.93

LF411C

Low Offset, Low Drift JFET Input Operational Amplifier
€1.86

LF411C

Low Offset, Low Drift JFET Input Operational Amplifier
€1.86

LF411CN

Low Offset, Low Drift JFET Input Operational Amplifier
€1.86

LM1458N

Dual Operational Amplifier
€0.93

NJM1458D

Dual Operational Amplifier
€0.62

4559P

Dual low noise operational amplifier
€0.57

NJM4559D

Dual low noise operational amplifier
€0.53

TL081CP

Single JFET-Input Operational Amplifier
€0.46

NE5532P

Operational Amplifiers - Op Amps Dual Low Noise
€0.50

NJM5532

Operational Amplifiers - Op Amps Dual Low Noise
€0.56

TL064CN

Operational Amplifiers - Op Amps BiFET
€0.59

TL062CP

Low-Power JFET-Input Operational Amplifier
€0.82