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. 122-0324
Mfr. Part No.LM358S-13
HK$0.804
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. 738-5308
Mfr. Part No.LM358S-13
HK$2.75
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. 738-5320
Mfr. Part No.TL072SG-13
HK$2.78
Each (In a Pack of 25)
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$0.685
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. 738-5257
Mfr. Part No.APX4558S-13
HK$0.867
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. 169-0649
Mfr. Part No.TL072SG-13
HK$1.12
Each (On a Reel of 2500)
units
JFET Surface Mount SOP Dual 2 8 - 3MHz - - 13V/µs - +85 °C -40 °C
RS Stock No. 828-7634
Mfr. Part No.TLV271IW5-7
HK$3.296
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. 122-3373
Mfr. Part No.AS321KTR-G1
HK$0.796
Each (On a Reel of 3000)
units
Low Power Surface Mount SOT-23 Dual, Single 1 5 3 → 36 V - - ±1.5 → ±18V - - +85 °C -40 °C
RS Stock No. 828-7637
Mfr. Part No.AZV832MMTR-G1
HK$4.45
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. 165-8393
Mfr. Part No.TLV271IS-13
HK$1.64
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
RS Stock No. 133-3346
Mfr. Part No.LM2902AQT14-13
HK$3.94
Each (In a Pack of 20)
units
Low Power Surface Mount TSSOP Dual, Single 4 14 - 700kHz - - 0.3V/µs 20 kHz +125 °C -40 °C
RS Stock No. 738-5317
Mfr. Part No.LMV358SG-13
HK$3.06
Each (In a Pack of 25)
units
- Surface Mount SOP Single 2 8 2.5 → 5.5 V 1MHz - - 1V/µs - +85 °C -40 °C
RS Stock No. 122-3383
Mfr. Part No.TLV271CW5-7
HK$1.04
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 +70 °C 0 °C
RS Stock No. 168-9578
Mfr. Part No.LM2904AM8-13
HK$0.933
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. 165-8394
Mfr. Part No.TLV272IM8-13
HK$2.30
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. 828-7640
Mfr. Part No.TLV271CW5-7
HK$2.96
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 +70 °C 0 °C
RS Stock No. 921-0792
Mfr. Part No.TLV271IS-13
HK$4.08
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. 170-8922
Mfr. Part No.AS324MTR-G1
HK$0.98
Each (On a Reel of 4000)
units
Low Power Surface Mount SOIC Dual, Single 4 14 3 → 36 V - - ±1.5 → ±18V - - +85 °C -40 °C
RS Stock No. 168-9581
Mfr. Part No.LM2904AQS-13
HK$0.933
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. 133-3370
Mfr. Part No.LM2904AM8-13
HK$2.67
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