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OPA827 Low-Noise, High-Precision, JFET-Input …
https://www.ti.com/lit/ds/symlink/opa827.pdf
and precision DC characteristics make the OPA827 series well-suited for a wide range of applications including 16-bit to 18-bit mixed signal systems, transimpedance (I/V-conversion) amplifiers, filters, precision ±10-V front ends, and professional audio applications. The OPA827 is available in both 8-pin SOIC and 8-
OPA827, is it sonically comparable to OPA627? | diyAudio
https://www.diyaudio.com/community/threads/opa827-is-it-sonically-comparable-to-opa627.134948/
The mentioned OPA2107 (dual bifet) was new to me. Looks like a nice op-amp for High-Performance Audio Circuitry Comes in DIP-8 and SO-8. Unity gain stable, +-5 to +-18V and like 4.5 mA supply current (<2.5mA per amp).
OPA827 data sheet, product information and support | …
https://www.ti.com/product/OPA827
The OPA827 series of JFET operational amplifiers combine outstanding DC precision with excellent AC performance. These amplifiers offer low offset voltage (150 µV, maximum), very low drift over temperature (0.5 µV/°C, typical), low-bias current (3 pA, typical), and very low 0.1-Hz to 10-Hz noise (250 nV PP, typical).
5Pcs/Lot New Original OPA827AIDR OPA827AID OPA827 …
https://www.aliexpress.com/item/1005002164333266.html
Cheap Integrated Circuits, Buy Quality Electronic Components & Supplies Directly from China Suppliers:5Pcs/Lot New Original OPA827AIDR OPA827AID OPA827 Patch SOP8 Precision Single Operational Amplifier Chip In Stock Enjoy Free Shipping …
Audiogon Discussion Forum
https://forum.audiogon.com/discussions/asus-stxii-with-sparkos-discrete-opamps
However, the output opamp is a MUSES 8820 (outputs to the RCA connectors) has a rather slow slew rate of 5V/us. This will roll off the high frequencies rather drastically. The OPA827 op amps (that I recommended) have a slew rate of 28V/us, but they are actually very excellent sounding with good bass and great resolution for a monolithic op amp.
Audiogon Discussion Forum
https://forum.audiogon.com/discussions/dac-opamp-upgrade
The only other two op amps that I think are good for audio are AD797 (bipolar) and OPA827 (FET). These are mono op amps and can be mounted on a Browndog dual-adapter. You can actually buy them from Browndog already mounted, …
some OPA627 questions - Audio forum - Audio - TI E2E ...
https://e2e.ti.com/support/audio-group/audio/f/audio-forum/176899/some-opa627-questions
The OPA1641 would be a good alternative for the OPA627 in the servo, or for that matter, in the signal path. OPA827 is also a great op amp for the signal path. In my opinion, better than the OPA627 but it has not yet earned its stripes in the audio community. Neither of these newer op amps is available in DIP package which may be a consideration.
The Opamp thread | Page 113 | Headphone Reviews and ...
https://www.head-fi.org/threads/the-opamp-thread.432749/page-113
In this setup, the opa827 sounded laid back compared to the opa627. I have some nice Auricaps on order to do a passive output. I plan to add another set of RCA jacks with the Auricaps and keep the opamp output to the existing RCA jacks. With this approach, I can test both by simply swapping RCA jacks.
Is there a better alternative to OPA627 OpAmp for audio ...
https://www.quora.com/Is-there-a-better-alternative-to-OPA627-OpAmp-for-audio-and-is-it-worth-the-32
Answer (1 of 5): OPA627 were quite popular in the late 1990’s through 2000’s for high-resolution audio. The key attributes that made it popular were its ultra-high-input impedance due to J-FET input (meaning it sounded consistent regardless of …
My "audiophile" LM3886 approach | Page 185 | diyAudio
https://www.diyaudio.com/community/threads/my-audiophile-lm3886-approach.54571/page-185
The X cap, Dario had posted a pic a while back. They're Kemet/Arcotronics R46
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