Amplifier ICs

An Amplifier is an electronic device that increases the amplitude of an electrical signal. This effect is called amplifier gain.

Amplifiers are grouped into classes and types, and have historically changed from vacuum tube (valve) technology to semiconductor transistor based devices. Valves operated under the principle of thermionic emission from a hot filament in a vacuum controlled by a control grid. They are still used today in high power applications like radar. Semiconductor Amplifiers operate by the diffusion of charge carriers across a semiconductor junction controlled by an electric field and are the most common amplifiers readily available today.

Amplifiers are categorized in respect to their ability to effectively amplify either a voltage or current input signal. A voltage amplifier amplifies the input voltage signals and produces a larger output voltage. Current amplifiers, also known as transimpedance amplifiers, sense the currents at the inputs, and output a voltage to the load. Transconductance and Transresistance Amplifiers swap this effect – an input voltage or current produce a larger output current or voltage respectively. 

One key performance parameter of an amplifier is its linearity, or its ability to accurately represent the input with the same shape signal in the time domain at the output. Other key performance parameters include the slew rate, frequency response, noise, and gain bandwidth just to name a few. 

The class of Amplifier represents the amount of variation an output signal has over one cycle if the input is a sinusoidal waveform. This provides tradeoffs between linearity and efficiency. The more linear an amplifier is, the lower the distortion product. Efficiency of an amplifier is the measure of power supplied to the amplifier compared to the resulting amplified output. Amplifiers that are designed for higher efficiency increase the amount of time the output stage is fully on or fully off, which may increase distortion to the signal. 

Classifications of amplifiers are A, AB, B, C, D and E. Class A is the most linear and class C is the least linear. Class C is not suitable for audio applications and typically is used in products like RF transmitters. Classes D and E are switching amplifiers that can utilize output circuit stages containing harmonic resonators, multiple supply rail switching, complimentary output techniques, and PWM and delta-sigma modulation to increase efficiency and reconstruct the input waveform at the output.

View as Grid List
Sort by
Display per page
Filter by attributes

CA3080E

2MHz, Operational Transconductance Amplifier
320,05 ₽

CA3140EZ\

Single channel operational Amplifier CA3140E
100,05 ₽

CA3140EZ

Single channel operational Amplifier CA3140EZ
120,05 ₽

CA3140EZ

4.5MHz, BiMOS Operational Amplifier with MOSFET Input/Bipolar Output
120,05 ₽

CA3140EZ

Single channel operational Amplifier CA3140EZ
94,05 ₽

CA3140EZ

4.5MHz, BiMOS Operational Amplifier with MOSFET Input/Bipolar Output
120,05 ₽

LF356N

Wide bandwidth single J-FET operational amplifier LF356N
85,05 ₽

LF356N

Wide bandwidth single J-FET operational amplifier LF356N
71,05 ₽

LF398N

Monolithic Sample-and-Hold Circuit
80,05 ₽

LF442CN

Dual Low Power JFET Input Operational Amplifier
75,05 ₽

LM311

Analog comparator LM311
25,05 ₽

LM311P

Analog comparator LM311P
60,05 ₽

LM311P

Analog comparator LM311P
30,05 ₽

LM311P

Analog comparator LM311P
30,05 ₽

LM3900N

Quad Norton Operational amplifier
40,05 ₽

LM3900N

Quad Norton Operational amplifier
128,05 ₽

LM3900N

Quad Norton Operational amplifier
60,05 ₽

LM741CN

Operational Anplifier LM741CN
46,05 ₽

LM741CN

Operational Anplifier LM741CN
54,05 ₽

NJM13600D

Daul transconductance amplifier NJM13600D
160,05 ₽

OP07CP

Precision Operational Amplifier
32,05 ₽

OP07CP

Precision Operational Amplifier
32,05 ₽

TL071CP

Operational Amplifier TL071CP
42,05 ₽

TL071CP

Operational Amplifier TL071CP
32,05 ₽

TL072CN

Low-Noise JFET-Input Operational Amplifier
20,05 ₽

TL072CP

Low-Noise JFET-Input Operational Amplifier
16,05 ₽

TL072CP

Low-Noise JFET-Input Operational Amplifier
19,05 ₽

CA3130E

15MHz, BiMOS Operational Amplifier with MOSFET Input/CMOS Output
92,05 ₽

LF444CN

Quad Low Power JFET Input Operational Amplifier
100,05 ₽

LF444CN

Quad Low Power JFET Input Operational Amplifier
72,05 ₽

LF444CN

Quad Low Power JFET Input Operational Amplifier
70,05 ₽

LT1055CN8

Precision, High Speed, JFET Input Operational Amplifier
450,05 ₽

TL082CN

General purpose JFET dual operation amplifier
38,05 ₽

TL082CP

General purpose JFET dual operation amplifier
26,05 ₽

LM13700N

Dual current controlled trans conductance amplifiers
180,05 ₽

LM3900N

Quad Norton Operational amplifier
56,05 ₽

LM393N

Lo-Pwr Dual Voltage Analog Comparator
61,05 ₽

LM393P

Двойной маломощный компаратор напряжения LM393P
24,05 ₽

LM393P

Двойной маломощный компаратор напряжения LM393P
12,05 ₽

LT1013DN8

Dual Precision Op Amp
275,05 ₽

NJM13700D

Dual current controlled trans conductance amplifiers
160,05 ₽

LF353N

Dual operational Amplifir JFET
60,05 ₽

LF353N

Dual operational Amplifir JFET
42,05 ₽

LF353N

Dual operational Amplifir JFET
60,05 ₽

LF353N

Dual operational Amplifir JFET
64,05 ₽

LF353P

Dual operational Amplifir JFET
22,05 ₽

LF412CN

Low Drift Dual JFET Input Operational Amplifier
100,05 ₽

LF412CN

Low Drift Dual JFET Input Operational Amplifier
100,05 ₽

LM324N

Quad operational amplifier LM324N
24,05 ₽

LM324N

Quad operational amplifier LM324N
32,05 ₽

LM324N

Quad operational amplifier LM324N
52,05 ₽

LM339N

Quad analog differential comparator
20,05 ₽

LM339N

Quad analog differential comparator
48,05 ₽

LM339N

Quad analog differential comparator
27,05 ₽

LM393N

Quad analog differential comparator
48,05 ₽

UA741CN

General-Purpose Operational Amplifier
20,05 ₽

UA741CP

General-Purpose Operational Amplifier
20,05 ₽

LM358N

Low-Power, Dual-Operational Amplifier LM358N
24,05 ₽

LM358P

Single Supply Dual Operational Amplifier
28,05 ₽

LM358P

Single Supply Dual Operational Amplifier
32,05 ₽

TL074CN

Quad Low-Noise JFET-Input Operational Amplifier
16,05 ₽

TL074CN

Quad Low-Noise JFET-Input Operational Amplifier
16,05 ₽

TL074CN

Quad Low-Noise JFET-Input Operational Amplifier
45,05 ₽

TL074CN

Quad Low-Noise JFET-Input Operational Amplifier
14,05 ₽

TL084

Quad JFET-Input Operational Amplifier
28,05 ₽

TL084

Quad JFET-Input Operational Amplifier
32,05 ₽

LM358P

Single Supply Dual Operational Amplifier
6,05 ₽

LF351N

Single Wideband JFET Operational Amplifier
40,05 ₽

LF351N

Single Wideband JFET Operational Amplifier
60,05 ₽

NJM4558D

Dual high-gain internally compensated operational amplifier
26,05 ₽

RC4558P

Dual high-gain internally compensated operational amplifier
18,05 ₽

LM307N

General purpose operational amplifier, with the necessary frequency compensation built into the chip
110,05 ₽

LM301AN

General purpose single channel operationl opamp
94,05 ₽

UA301ATC

General purpose single channel operational amplifier
72,05 ₽

NJM5534D

Op Amp Single Low Noise
60,05 ₽

LF411C

Low Offset, Low Drift JFET Input Operational Amplifier
120,05 ₽

LF411C

Low Offset, Low Drift JFET Input Operational Amplifier
120,05 ₽

LF411CN

Low Offset, Low Drift JFET Input Operational Amplifier
120,05 ₽

LM1458N

Dual Operational Amplifier
60,05 ₽

NJM1458D

Dual Operational Amplifier
40,05 ₽

4559P

Dual low noise operational amplifier
37,05 ₽

NJM4559D

Dual low noise operational amplifier
34,05 ₽

TL081CP

Single JFET-Input Operational Amplifier
30,05 ₽