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
$1.50

CA3140EZ

Single channel operational Amplifier CA3140EZ
$1.80

CA3140EZ

4.5MHz, BiMOS Operational Amplifier with MOSFET Input/Bipolar Output
$1.80

CA3140EZ

Single channel operational Amplifier CA3140EZ
$1.41

CA3140EZ

4.5MHz, BiMOS Operational Amplifier with MOSFET Input/Bipolar Output
$1.80

LF356N

Wide bandwidth single J-FET operational amplifier LF356N
$1.06

LF356N

Wide bandwidth single J-FET operational amplifier LF356N
$1.28

LM3900N

Quad Norton Operational amplifier
$0.60

LM3900N

Quad Norton Operational amplifier
$1.92

LM3900N

Quad Norton Operational amplifier
$0.90

LM741CN

Operational Anplifier LM741CN
$0.69

LM741CN

Operational Anplifier LM741CN
$0.81

TL071CP

Operational Amplifier TL071CP
$0.63

TL071CP

Operational Amplifier TL071CP
$0.48

TL072CN

Low-Noise JFET-Input Operational Amplifier
$0.30

TL072CP

Low-Noise JFET-Input Operational Amplifier
$0.24

TL072CP

Low-Noise JFET-Input Operational Amplifier
$0.28

CA3130E

15MHz, BiMOS Operational Amplifier with MOSFET Input/CMOS Output
$1.38

LF444CN

Quad Low Power JFET Input Operational Amplifier
$1.50

LF444CN

Quad Low Power JFET Input Operational Amplifier
$1.08

LF444CN

Quad Low Power JFET Input Operational Amplifier
$1.05

LF444CN

Quad Low Power JFET Input Operational Amplifier
$1.68

LF444CN

Quad Low Power JFET Input Operational Amplifier
$1.68

NJM072D

General purpose JFET dual operation amplifiers
$1.05

NJM082D

General purpose JFET dual operation amplifiers
$1.05

TL082CN

General purpose JFET dual operation amplifiers
$0.57

TL082CP

General purpose JFET dual operation amplifier
$0.39

LM3900N

Quad Norton Operational amplifier
$0.84

LF353N

Dual operational Amplifir JFET
$0.90

LF353N

Dual operational Amplifir JFET
$0.63

LF353N

Dual operational Amplifir JFET
$0.90

LF353N

Dual operational Amplifir JFET
$0.96

LF353P

Dual operational Amplifir JFET
$0.33

LF412CN

Low Drift Dual JFET Input Operational Amplifier
$1.50

LF412CN

Low Drift Dual JFET Input Operational Amplifier
$1.50

LF412CN

Low Drift Dual JFET Input Operational Amplifier
$1.38

LM324E

Quad operational amplifier LM324E
$1.26

LM324N

Quad operational amplifier LM324N
$0.93

LM324N

Quad operational amplifier LM324N
$1.04

LM324N

Low Power Quad Operational Amplifiers
$1.18

LM324N

Quad operational amplifier
$0.36

LM324N

Quad operational amplifier LM324N
$0.48

UA741CN

General-Purpose Operational Amplifier
$0.30

UA741CP

General-Purpose Operational Amplifier
$0.30

LM358N

Low-Power, Dual-Operational Amplifier LM358N
$0.36

LM358P

Single Supply Dual Operational Amplifier
$0.42

LM358P

Single Supply Dual Operational Amplifier
$0.48

TL074CN

Quad Low-Noise JFET-Input Operational Amplifier
$0.21

TL074CN

Quad Low-Noise JFET-Input Operational Amplifier
$0.24

TL074CN

Quad Low-Noise JFET-Input Operational Amplifier
$0.32

TL074CN

Quad Low-Noise JFET-Input Operational Amplifier
$0.68

TL084CN

Quad JFET-Input Operational Amplifier
$0.68

TL084CN

Quad JFET-Input Operational Amplifier
$0.68

TL084CN

Quad JFET-Input Operational Amplifier
$0.68

TL084CN

Quad JFET-Input Operational Amplifier
$0.68

LM358P

Single Supply Dual Operational Amplifier
$0.09

LF351N

Single Wideband JFET Operational Amplifier
$0.60

LF351N

Single Wideband JFET Operational Amplifier
$0.90

NJM4558D

Dual high-gain internally compensated operational amplifier
$0.57

RC4558P

Dual high-gain internally compensated operational amplifier
$0.27

LM307N

General purpose operational amplifier, with the necessary frequency compensation built into the chip
$1.65

LM301AN

General purpose single channel operationl opamp
$1.17

UA301ATC

General purpose single channel operational amplifier
$1.08

NJM5534D

Op Amp Single Low Noise
$1.17

LF411C

Low Offset, Low Drift JFET Input Operational Amplifier
$1.80

LF411C

Low Offset, Low Drift JFET Input Operational Amplifier
$1.80

LF411CN

Low Offset, Low Drift JFET Input Operational Amplifier
$1.80

LM1458N

Dual Operational Amplifier
$0.90

MC1458P1D

Dual Operational Amplifier
$1.12

NJM1458D

Dual Operational Amplifier
$0.60

4559P

Dual low noise operational amplifier
$0.56

NJM4559D

Dual low noise operational amplifier
$0.93

TL081CP

Single JFET-Input Operational Amplifier
$0.45

TL081CP

Single JFET-Input Operational Amplifier
$0.84

NE5532P

Operational Amplifiers - Op Amps Dual Low Noise
$0.48

NJM5532

Operational Amplifiers - Op Amps Dual Low Noise
$0.54

TL064CN

Operational Amplifiers - Op Amps BiFET
$0.74

TL062CP

Low-Power JFET-Input Operational Amplifier
$0.80

M5218L

Dual Low-noise operational amplifier
$2.40

M5218L

Dual Low-noise operational amplifier
$2.40

BA718

BA718
$1.80

NJM5534DD

Operational Amplifiers - Op Amps Single Low Noise
$1.95