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LM324 - Single Supply Quad Operational Amplifiers
https://www.onsemi.com/pdf/datasheet/lm324-d.pdf
The LM324 series are low−cost, quad operational amplifiers with true differential inputs. They have several distinct advantages over standard operational amplifier types in single supply applications. The quad amplifier can operate at supply voltages as low as 3.0 V or as high as 32 V with quiescent currents about one−fifth of those
quad op amp for audio | Microchip
https://www.microchip.com/forums/m397020.aspx
quad op amp for audio I am working on a design that uses a PIC to process audio (really speech, < 5Khz). I need op-amps that are rail-to-rail and low power since this is a battery operated device. The op amp will be used for a microphone preamp and level shifter to get 0-5V for the PIC adc and also for output filtering of a pwm audio output.
OP470 Very Low Noise Quad Operational Amplifier …
https://www.analog.com/media/en/technical-documentation/data-sheets/OP470.pdf
Industry Standard Quad Pinouts Available in Die Form GENERAL DESCRIPTION The OP470 is a high-performance monolithic quad operational amplifier with exceptionally low voltage noise, 5 nV/÷Hz at 1 kHz max, offering comparable performance to ADI’s industry standard OP27. The OP470 features an input offset voltage below 0.4 mV,
LM148/LM248/LM348 Quad 741 Op Amps datasheet …
https://www.ti.com/lit/ds/symlink/lm148-n.pdf
In the proliferation of quad op amps, these are the first to offer the convenience of familiar, easy to use operating characteristics of the 741 op amp. In those applications where 741 op amps have been employed, the LM148 series op amps can be employed directly with no change in circuit performance. The package pin-outsare such that the inverting input of each amplifier is …
OPA1678 data sheet, product information and support | …
https://www.ti.com/product/OPA1678
The single-channel OPA1677, dual-channel OPA1678, and quad-channel OPA1679 (OPA167x) op amps offer higher system-level performance over legacy op amps commonly used in audio circuitry. The OPA167x amplifiers achieve a low 4.5-nV/√ Hz noise density and low distortion of 0.0001% at 1 kHz, which improves audio signal fidelity. These devices also offer rail-to-rail …
List of 10 Op-Amps | Pin Configuration of ICs and …
https://www.elprocus.com/op-amp-ics-pin-configuration-features-working/
Burr Brown OPA627AP Op Amp - Hi-Fi-Insight
http://www.hi-fi-insight.com/burr-brown-opa627ap-op-amp.html
Before I continue though I should stress that while the Burr Brown OPA604AP Op Amp costs around £2, the Burr Brown OPA627AP Op Amp is about 6-7 times more expensive but a £25-£30 upgrade to a Quad 405 is nothing really so I thought what the hell.
Multi Channel Audio Mixer Circuit using LM3900
https://electronicshub.org/multi-channel-audio-mixer-circuit-using-lm3900
LM3900 Quad Operational Amplifier: This IC consist of 4 high gain, independent, frequency compensated Norton amplifiers. These operational amplifiers are designed to operate for wide range of voltages. These amplifiers provide good …
What's the absolute best opamp for audio purposes? | All ...
https://forum.allaboutcircuits.com/threads/whats-the-absolute-best-opamp-for-audio-purposes.62897/
With a 30V supply and a single-ended amplifier circuit the power into 4 ohms is only 13.8W. Maybe your speakers are rated at 60W peak which is 30W RMS. An OPA134 single, OPA2134 dual or OPA4134 quad opamp is excellent. The max allowed supply is 36V.
Cycfi Research
https://www.cycfi.com/projects/six-pack/op-amp-shootout
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