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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OPA209AIDBVT Texas Instruments, Precision, Op Amp, RRO, 18MHz 1 kHz, 4.5 → 36 V, 5-Pin SOT-23 RS Stock No.: 812-2533 Mfr. Part No.: OPA209AIDBVT Datasheets: $4.995 Each (In a Pack of 2)	Texas Instruments	Precision	Surface Mount	SOT-23	Dual, Single	1	5	4.5 → 36 V	18MHz	-	±2.25 → ±18V	6.4V/µs	1 kHz	+125 °C	-40 °C	-	-	-	-	Rail to Rail Output	132 dB
LM6142BIN/NOPB Texas Instruments, Precision, Op Amp, RRIO, 17MHz, 3 → 18 V, 8-Pin MDIP RS Stock No.: 534-3576P Mfr. Part No.: LM6142BIN/NOPB Datasheets: $7.47 Each (Supplied in a Tube)	Texas Instruments	Precision	Through Hole	MDIP	Single	2	8	3 → 18 V	17MHz	-	-	25V/µs	-	+85 °C	-40 °C	-	-	-	-	Rail to Rail Input/Output	108.6 dB
NE5534AP Texas Instruments, Op Amp, 10MHz, 8-Pin PDIP RS Stock No.: 810-330 Mfr. Part No.: NE5534AP Datasheets: $1.85 Each	Texas Instruments	-	Through Hole	PDIP	Dual	1	8	-	10MHz	-	±12 V, ±9 V	13V/µs	-	+70 °C	0 °C	-	-	-	-	No	100 dB
OPA197IDBVT Texas Instruments, Precision, Op Amp, RRIO, 10MHz, 5-Pin SOT-23 RS Stock No.: 133-0690 Mfr. Part No.: OPA197IDBVT Datasheets: $2.908 Each (In a Pack of 5)	Texas Instruments	Precision	Surface Mount	SOT-23	Single	1	5	-	10MHz	-	-	20V/µs	-	+125 °C	-40 °C	-	36 V	±500µV	±65 mA	Rail to Rail Input/Output	134 dB
LM7171BIN/NOPB Texas Instruments, Op Amp, 200MHz, 5.5 → 36 V, 8-Pin MDIP RS Stock No.: 534-3762 Mfr. Part No.: LM7171BIN/NOPB Datasheets: $12.30 Each	Texas Instruments	-	Through Hole	MDIP	Dual, Single	1	8	5.5 → 36 V	200MHz	-	±12 V, ±15 V, ±3 V, ±5 V, ±9 V	4100V/µs	-	+85 °C	-40 °C	-	-	-	-	No	78 dB
LM6132BIN/NOPB Texas Instruments, Precision, Op Amp, RRIO, 11MHz, 1.8 → 24 V, 8-Pin MDIP RS Stock No.: 761-6012P Mfr. Part No.: LM6132BIN/NOPB Datasheets: $6.82 Each (Supplied in a Tube)	Texas Instruments	Precision	Through Hole	MDIP	Single	2	8	1.8 → 24 V	11MHz	-	-	14V/µs	-	+85 °C	-40 °C	-	-	-	-	Rail to Rail Input/Output	100 dB
OPA828ID Texas Instruments, Precision, Op Amp, RRO, 45MHz, 36 V, 8-Pin SOIC RS Stock No.: 249-4955 Mfr. Part No.: OPA828ID Datasheets: $12.39 Each	Texas Instruments	Precision	Surface Mount	SOIC	Single	1	8	36 V	45MHz	-	-	-	-	-	-	-	-	-	-	Rail to Rail Output	-
OPA544T Texas Instruments, Power, Op Amp, 1.4MHz, 5-Pin TO-220 RS Stock No.: 182-8629 Mfr. Part No.: OPA544T Datasheets: $28.54 Each	Texas Instruments	Power	Through Hole	TO-220	Dual	1	5	-	1.4MHz	-	±12 V, ±15 V, ±18 V, ±24 V, ±28 V	8V/µs	-	+85 °C	-40 °C	-	-	-	-	No	103 dB
LM6134AIM/NOPB Texas Instruments, Precision, Op Amp, RRIO, 10MHz, 3 → 18 V, 14-Pin SOIC RS Stock No.: 100-5946 Mfr. Part No.: LM6134AIM/NOPB Datasheets: $10.845 Each (In a Tube of 55)	Texas Instruments	Precision	Surface Mount	SOIC	Single	4	14	3 → 18 V	10MHz	-	-	14V/µs	-	+85 °C	-40 °C	-	-	-	-	Rail to Rail Input/Output	100 dB
AD817ARZ Analog Devices, Op Amp, 35MHz, 6 → 28 V, 8-Pin SOIC RS Stock No.: 523-6945 Mfr. Part No.: AD817ARZ Datasheets: $8.78 Each	Analog Devices	General Purpose	Surface Mount	SOIC	Dual, Single	1	8	6 → 28 V	35MHz	-	±12 V, ±15 V, ±3 V, ±5 V, ±9 V	250V/µs	-	+85 °C	-40 °C	-	-	-	-	No	72 dB
OPA551PA Texas Instruments, Power, Op Amp, 3MHz, 8-Pin PDIP RS Stock No.: 660-7749 Mfr. Part No.: OPA551PA Datasheets: $9.86 Each	Texas Instruments	Power	Through Hole	PDIP	Dual	1	8	-	3MHz	-	±30V	15V/µs	-	+125 °C	-40 °C	-	-	-	-	No	126 dB
OPA547T-1 Texas Instruments, Power, Op Amp, 1MHz, 8 → 60 V, 7-Pin TO-220 RS Stock No.: 660-6590 Mfr. Part No.: OPA547T-1 Datasheets: $17.07 Each	Texas Instruments	Power	Through Hole	TO-220	Dual, Single	1	7	8 → 60 V	1MHz	-	±12 V, ±15 V, ±18 V, ±24 V, ±28 V, ±5 V, ±9 V	6V/µs	-	+85 °C	-40 °C	-	-	-	-	No	115 dB
LM4562MA/NOPB Texas Instruments, Audio, Op Amp, 55MHz, 8-Pin SOIC RS Stock No.: 761-5943 Mfr. Part No.: LM4562MA/NOPB Datasheets: $10.29 Each	Texas Instruments	Audio	Surface Mount	SOIC	Dual	2	8	-	55MHz	-	±2.5 → ±17V	±20V/µs	-	+85 °C	-40 °C	-	-	-	-	No	140 dB
OPA551FA/500 Texas Instruments, Power, Op Amp, 3MHz, 8-Pin D2PAK RS Stock No.: 660-7341 Mfr. Part No.: OPA551FA/500 Datasheets: $14.15 Each	Texas Instruments	Power	Surface Mount	D2PAK	Dual	1	8	-	3MHz	-	±30V	15V/µs	-	+125 °C	-40 °C	-	-	-	-	No	126 dB
OPA548T Texas Instruments, Power, Op Amps, 1MHz, 8 → 60 V, 7-Pin TO-220 RS Stock No.: 197-7451 Mfr. Part No.: OPA548T Datasheets: $27.03 Each	Texas Instruments	Power	Through Hole	TO-220	Dual, Single	1	7	8 → 60 V	1MHz	-	-	-	-	-	-	-	-	-	-	No	-
AD8034ARZ-REEL7 Analog Devices, FastFet Operational Amplifier, Op Amp, RRO, 80MHz, 5 → 24 V, 8-Pin SOIC RS Stock No.: 226-4473 Mfr. Part No.: AD8034ARZ-REEL7 Datasheets: $10.00 Each (In a Pack of 2)	Analog Devices	FastFet Operational Amplifier	Surface Mount	SOIC	Single	2	8	5 → 24 V	80MHz	-	-	-	-	-	-	-	-	-	-	Rail to Rail Output	-
OPA177GP Texas Instruments, Precision, Op Amp, 600kHz, 8-Pin PDIP RS Stock No.: 236-8651 Mfr. Part No.: OPA177GP Datasheets: $5.65 Each	Texas Instruments	Precision	Through Hole	PDIP	Dual	1	8	-	600kHz	-	±3 → ±18V	0.3V/µs	-	+85 °C	-40 °C	-	-	-	-	No	135.6 dB
OPA551UA Texas Instruments, Power, Op Amp, 3MHz, 8-Pin SOIC RS Stock No.: 661-1016 Mfr. Part No.: OPA551UA Datasheets: $8.57 Each	Texas Instruments	Power	Surface Mount	SOIC	Dual	1	8	-	3MHz	-	±30V	15V/µs	-	+125 °C	-40 °C	-	-	-	-	No	126 dB
OPA2350UA Texas Instruments, Precision, Op Amp, RRIO, 38MHz, 3 V, 5 V, 8-Pin SOIC RS Stock No.: 461-8576P Mfr. Part No.: OPA2350UA Datasheets: $9.11 Each (Supplied in a Tube)	Texas Instruments	Precision	Surface Mount	SOIC	Single	2	8	3 V, 5 V	38MHz	-	-	22V/µs	-	+85 °C	-40 °C	-	-	-	-	Rail to Rail Input/Output	122 dB
OPA604AU Texas Instruments, Precision, Op Amp, 20MHz, 8-Pin SOIC RS Stock No.: 288-878 Mfr. Part No.: OPA604AU Datasheets: $5.07 Each	Texas Instruments	Precision	Surface Mount	SOIC	Dual	1	8	-	20MHz	-	±12 V, ±15 V, ±18 V, ±5 V, ±9 V	25V/µs	-	+85 °C	-25 °C	-	-	-	-	No	100 dB