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.

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.

Op Amp Applications

  • 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$2.72
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$0.836
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. 738-5320
Mfr. Part No.TL072SG-13
HK$2.856
Each (In a Pack of 25)
units
JFET Surface Mount SOP Dual 2 8 - 3MHz - - 13V/µs - +85 °C -40 °C
RS Stock No. 169-0649
Mfr. Part No.TL072SG-13
HK$1.303
Each (On a Reel of 2500)
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$2.331
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. 122-0317
Mfr. Part No.APX4558S-13
HK$0.696
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. 133-3375
Mfr. Part No.LM2904M8-13
HK$2.421
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. 823-3006
Mfr. Part No.LMV324BG-13
HK$3.896
Each (In a Pack of 25)
units
- Surface Mount SOIC Single 4 14 2.7 → 5.5 V 1MHz - - 1V/µs 50 kHz +125 °C -40 °C
RS Stock No. 133-3373
Mfr. Part No.LM2904AQS-13
HK$2.657
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. 122-0671
Mfr. Part No.APX358SG-13
HK$2.596
Each (On a Reel of 2500)
units
Low Voltage Surface Mount SOP Single 2 8 2.5 → 5.5 V 1MHz - - 1V/µs - +85 °C -40 °C
RS Stock No. 122-3382
Mfr. Part No.TLV271IW5-7
HK$1.244
Each (On a Reel of 3000)
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. 828-7628
Mfr. Part No.AZV831KTR-G1
HK$3.171
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
RS Stock No. 828-7549
Mfr. Part No.AS358MTR-G1
HK$2.668
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. 133-3370
Mfr. Part No.LM2904AM8-13
HK$2.631
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. 121-9655
Mfr. Part No.AZV831KTR-G1
HK$1.587
Each (On a Reel of 3000)
units
- Surface Mount SOT-23 Single 1 5 1.6 → 5.5 V 1MHz - - 0.32V/µs 1 kHz +85 °C -40 °C
RS Stock No. 738-5314
Mfr. Part No.LMV324TSG-13
HK$3.77
Each (In a Pack of 25)
units
Low Noise Surface Mount TSSOP Single 4 14 2.7 → 5.5 V 1MHz - - 1V/µs - +85 °C -40 °C
RS Stock No. 828-7527
Mfr. Part No.AS321KTR-G1
HK$2.709
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. 165-8394
Mfr. Part No.TLV272IM8-13
HK$2.112
Each (On a Reel of 2500)
units
CMOS Surface Mount MSOP Dual - 8 - 1.9MHz - ±1.35 → ±8V 2.2V/µs - +125 °C -40 °C
RS Stock No. 170-8924
Mfr. Part No.AS358MTR-G1
HK$0.679
Each (On a Reel of 4000)
units
Low Power Surface Mount SOIC Dual, Single 2 8 3 → 36 V - - ±1.5 → ±18V - - +85 °C -40 °C
RS Stock No. 165-8393
Mfr. Part No.TLV271IS-13
HK$1.741
Each (On a Reel of 2500)
units
CMOS Surface Mount SOIC Single - 8 2.7 → 16 V 1.9MHz - - 2.2V/µs - +125 °C -40 °C