Op Amps

Op Amps, short for Operational Amplifiers, are semiconductor devices commonly used in analogue electronic circuits. They work by receiving an input signal and amplifying it into a stronger output signal. Op Amps offer a very high voltage gain amplifiers.

How do Op Amps work?
Op Amps provide mathematical operations such as addition, multiplication, differentiation, and integration. They are voltage amplifiers which usually have a differential input and a single-ended output.
There are two inputs into an Operational Amplifier which are called inverting (-) and non-inverting (+) inputs. If you were to increase the voltage to the inverting input, the output voltage decreases. Alternatively, if you increase the voltage to the non-inverting input, the output voltage increases. If an equal voltage is supplied to both inputs, the output will not change.

What is a differential amplifier?
Op Amps are often referred to as differential amplifiers. This is because the output of an Op-Amp is relative to the difference between the input voltages.

Where are Op Amps used?
Operational amplifiers have a wide variety of uses in electronic circuits. Here are some examples of how they are used:

Crystal oscillators and waveform generators
Audio- and video-frequency pre-amplifiers and buffers
Integrators
Comparators
Analogue-to-digital (ADC) and digital-to-analogue (DAC) converters
Voltage Clamps
Analogue Calculators
Filters
Differentiators
Precision rectifiers
Linear voltage regulators
Current regulators
Precision rectifiers
Precision peak to peak detectors

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Description Price Amplifier Type Mounting Type Package Type Power Supply Type Number of Channels per Chip Pin Count Typical Single Supply Voltage Typical Gain Bandwidth Product Output Type Typical Dual Supply Voltage Typical Slew Rate Maximum Operating Frequency Maximum Operating Temperature Minimum Operating Temperature
RS Stock No. 738-5308
Mfr. Part No.LM358S-13
HK$1.862
Each (In a Pack of 50)
units
- Surface Mount SOP Dual, Single 2 8 3 → 32 V 1MHz - ±1.5 → ±16V - - +70 °C 0 °C
RS Stock No. 122-0324
Mfr. Part No.LM358S-13
HK$0.679
Each (On a Reel of 2500)
units
- Surface Mount SOP Dual, Single 2 8 3 → 32 V 1MHz - ±1.5 → ±16V - - +70 °C 0 °C
RS Stock No. 169-0649
Mfr. Part No.TL072SG-13
HK$1.193
Each (On a Reel of 2500)
units
JFET Surface Mount SOP Dual 2 8 - 3MHz - - 13V/µs - +85 °C -40 °C
RS Stock No. 122-0317
Mfr. Part No.APX4558S-13
HK$0.562
Each (On a Reel of 2500)
units
Low Noise Surface Mount SOIC Dual 2 8 - 3MHz - ±5 → ±15V 1.7V/µs - +70 °C 0 °C
RS Stock No. 738-5320
Mfr. Part No.TL072SG-13
HK$2.243
Each (In a Pack of 25)
units
JFET Surface Mount SOP Dual 2 8 - 3MHz - - 13V/µs - +85 °C -40 °C
RS Stock No. 738-5257
Mfr. Part No.APX4558S-13
HK$0.873
Each (In a Pack of 50)
units
Low Noise Surface Mount SOIC Dual 2 8 - 3MHz - ±5 → ±15V 1.7V/µs - +70 °C 0 °C
RS Stock No. 738-5311
Mfr. Part No.LMV358M8G-13
HK$2.289
Each (On a Tape of 25)
units
- Surface Mount MSOP Single 2 8 2.7 → 5.5 V 1MHz - - 1V/µs - +85 °C -40 °C
RS Stock No. 168-9578
Mfr. Part No.LM2904AM8-13
HK$0.982
Each (On a Reel of 2500)
units
Low Power Surface Mount MSOP Dual, Single 2 8 - 700kHz - - 0.3V/µs 20 kHz +125 °C -40 °C
RS Stock No. 168-9583
Mfr. Part No.LM2904M8-13
HK$0.885
Each (On a Reel of 2500)
units
Low Power Surface Mount MSOP Dual, Single 2 8 - 700kHz - - 0.3V/µs 20 kHz +125 °C -40 °C
RS Stock No. 168-9576
Mfr. Part No.LM2904AQM8-13
HK$0.994
Each (On a Reel of 2500)
units
Low Power Surface Mount MSOP Dual, Single 2 8 - 700kHz - - 0.3V/µs 20 kHz +125 °C -40 °C
RS Stock No. 828-7634
Mfr. Part No.TLV271IW5-7
HK$1.981
Each (In a Pack of 50)
units
CMOS Surface Mount SOT-25 Dual, Single 1 5 2.7 → 16 V 1.9MHz - ±5V 2.2V/µs 10 kHz +125 °C -40 °C
RS Stock No. 133-3370
Mfr. Part No.LM2904AM8-13
HK$1.885
Each (In a Pack of 50)
units
Low Power Surface Mount MSOP Dual, Single 2 8 - 700kHz - - 0.3V/µs 20 kHz +125 °C -40 °C
RS Stock No. 828-7549
Mfr. Part No.AS358MTR-G1
HK$1.851
Each (In a Pack of 50)
units
Low Power Surface Mount SOIC Dual, Single 2 8 3 → 36 V - - ±1.5 → ±18V - - +85 °C -40 °C
RS Stock No. 828-7637
Mfr. Part No.AZV832MMTR-G1
HK$3.511
Each (In a Pack of 20)
units
- Surface Mount MSOP Dual, Single 2 8 1.6 → 5.5 V 1MHz - ±0.8 → ±2.5V 0.32V/µs 1 kHz +85 °C -40 °C
RS Stock No. 168-9581
Mfr. Part No.LM2904AQS-13
HK$0.935
Each (On a Reel of 2500)
units
Low Power Surface Mount SO Dual, Single 2 8 - 700kHz - - 0.3V/µs 20 kHz +125 °C -40 °C
RS Stock No. 133-3373
Mfr. Part No.LM2904AQS-13
HK$2.016
Each (In a Pack of 50)
units
Low Power Surface Mount SO Dual, Single 2 8 - 700kHz - - 0.3V/µs 20 kHz +125 °C -40 °C
RS Stock No. 738-5301
Mfr. Part No.LMV321SEG-7
HK$1.928
Each (In a Pack of 25)
units
Low Voltage Surface Mount SOT-353 Single 1 5 2.7 → 5.5 V 1MHz - - 1V/µs - +85 °C -40 °C
RS Stock No. 828-7527
Mfr. Part No.AS321KTR-G1
HK$1.757
Each (In a Pack of 50)
units
Low Power Surface Mount SOT-23 Dual, Single 1 5 3 → 36 V - - ±1.5 → ±18V - - +85 °C -40 °C
RS Stock No. 921-0792
Mfr. Part No.TLV271IS-13
HK$2.837
Each (In a Pack of 20)
units
CMOS Surface Mount SOIC Single - 8 2.7 → 16 V 1.9MHz - - 2.2V/µs - +125 °C -40 °C
RS Stock No. 828-7628
Mfr. Part No.AZV831KTR-G1
HK$2.803
Each (In a Pack of 20)
units
- Surface Mount SOT-23 Single 1 5 1.6 → 5.5 V 1MHz - - 0.32V/µs 1 kHz +85 °C -40 °C