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. 759-0197
Mfr. Part No.ADA4817-1ARDZ
HK$58.22
Each
units
High Speed Surface Mount SOIC Single 1 8 5 → 10 V 410MHz - - 870V/µs - +105 °C -40 °C
RS Stock No. 146-2234
Mfr. Part No.TS358CD C3G
HK$0.843
Each (In a Tube of 50)
units
- Through Hole PDIP Dual, Single 2 8 5 → 28 V - - ±12 V, ±15 V, ±3 V, ±5 V, ±9 V - - +70 °C 0 °C
RS Stock No. 436-3018
Mfr. Part No.LM258D
HK$9.42
Each
units
Precision Surface Mount SOIC Dual, Single 2 8 5 → 28 V 700kHz - ±12 V, ±15 V, ±3 V, ±5 V, ±9 V 0.3V/µs - +85 °C -25 °C
RS Stock No. 179-2059
Mfr. Part No.TLC2274CD
HK$22.227
Each (In a Tube of 50)
units
Precision Surface Mount SOIC Dual, Single 4 14 5 → 15 V 2.2MHz - ±3 V, ±5 V 3.6V/µs - +70 °C 0 °C
RS Stock No. 660-4308
Mfr. Part No.OPA228UA
HK$27.37
Each
units
Low Noise, Precision Surface Mount SOIC Dual 1 8 - 8MHz - ±12 V, ±15 V, ±3 V, ±5 V, ±9 V 11V/µs - +85 °C -40 °C
RS Stock No. 102-5685
Mfr. Part No.LM13700M/NOPB
HK$8.135
Each (In a Tube of 48)
units
Transconductance Surface Mount SOIC Dual, Single 2 16 3 → 28 V 2MHz - ±12 V, ±15 V, ±9 V 50V/µs - +70 °C 0 °C
RS Stock No. 168-5725
Mfr. Part No.TSV992IST
HK$3.821
Each (On a Reel of 4000)
units
High Speed Surface Mount MSOP Single 2 8 3 V, 5 V 20MHz - - 10V/µs - +125 °C -40 °C
RS Stock No. 660-9565
Mfr. Part No.LM2902PWR
HK$1.863
Each (In a Pack of 10)
units
Precision Surface Mount TSSOP Dual, Single 4 14 5 → 24 V 1.2MHz - ±12 V, ±3 V, ±5 V, ±9 V 0.5V/µs - +125 °C -40 °C
RS Stock No. 144-5720
Mfr. Part No.MCP6242-E/SN
BrandMicrochip
HK$2.423
Each (In a Tube of 100)
units
General Purpose Surface Mount SOIC Single 2 8 3 V, 5 V 550kHz - - 0.3V/µs - +125 °C -40 °C
RS Stock No. 709-5342
Mfr. Part No.OP196GSZ
HK$34.44
Each
units
- Surface Mount SOIC Single 1 8 5 V, 9 V 350kHz - - 0.3V/µs - +125 °C -40 °C
RS Stock No. 169-8298
Mfr. Part No.CA3140MZ
BrandIntersil
HK$17.759
Each (In a Tube of 98)
units
- Surface Mount SOIC Dual, Single 1 8 5 → 28 V 3.7MHz - ±12 V, ±15 V, ±3 V, ±5 V, ±9 V 7V/µs - +125 °C -55 °C
RS Stock No. 761-6047
Mfr. Part No.LM7321MFE/NOPB
HK$17.104
Each (In a Pack of 5)
units
Precision Surface Mount SOT-23 Single 1 5 2.5 → 32 V 20MHz - - 18V/µs - +125 °C -40 °C
RS Stock No. 660-9990
Mfr. Part No.THS4304DBVT
HK$51.16
Each
units
- Surface Mount SOT-23 Dual, Single 1 5 3 V 870MHz - - 830V/µs - +85 °C -40 °C
RS Stock No. 716-5974
Mfr. Part No.PA94
BrandApex
HK$2,734.85
Each
units
- Through Hole SIP Dual 1 8 - 140MHz - ±300V 700V/µs - +85 °C -25 °C
RS Stock No. 121-9355
Mfr. Part No.OPA1642AID
HK$27.226
Each (In a Tube of 75)
units
Audio Surface Mount SOIC Dual, Single 2 8 4.5 → 36 V 11MHz - ±2.25 → ±18V 20V/µs 100 Hz +85 °C -40 °C
RS Stock No. 144-9919
Mfr. Part No.LM258AP
HK$1.366
Each (In a Tube of 50)
units
Precision Through Hole PDIP Dual, Single 2 8 5 → 28 V 700kHz - ±12 V, ±15 V, ±3 V, ±5 V, ±9 V 0.3V/µs - +85 °C -25 °C
RS Stock No. 162-5585
Mfr. Part No.TLE2024CDW
HK$30.507
Each (In a Tube of 40)
units
Precision Surface Mount SOIC Dual, Single 4 16 5 → 28 V 1.7MHz - ±12 V, ±15 V, ±18 V, ±3 V, ±5 V, ±9 V 0.5V/µs - +70 °C 0 °C
RS Stock No. 920-6235
Mfr. Part No.TS922ID
HK$5.453
Each (In a Tube of 100)
units
Audio Surface Mount SOIC Single 2 8 3 → 9 V 4MHz - - 1.3V/µs - +125 °C -40 °C
RS Stock No. 157-8579
Mfr. Part No.AD8058ARZ
HK$23.337
Each (In a Tube of 98)
units
Low Noise Surface Mount SOIC Dual, Single 2 8 5 V - - ±5V 700V/µs - +85 °C -40 °C
RS Stock No. 545-6026
Mfr. Part No.LT1028ACN8#PBF
HK$130.02
Each
units
- Through Hole PDIP Dual 1 8 - 75MHz - ±12 V, ±15 V, ±18 V, ±5 V, ±9 V 15V/µs - +70 °C 0 °C
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