2 layers

Buffer Opamp

Copper layers: 2
Thickness: 1.6 mm
Parts: 21
Nets: 19
Pads: 59
Tracks, vias: 0, 0
Routed: Not yet
KiCad: KiCad 6 (file 20211014)
Created: 10 May 2023
Updated: 31 Oct 2026

Overview

Buffer Opamp is an open-source printed circuit board by Gninnorg, from the Gninnorg/ThePreamp repository on GitHub. It is a 2-layer board with 21 parts on 19 nets.

It is built around the NE5534D. Its parts include 8 capacitors, 5 connectors, 4 resistors and 2 ICs.

Main components

NE5534D
SOIC-8-20V~-3V、3V~20V 0℃~+70℃ 1 1.5uA 100dB 10MHz 13V/us 3.5nV/√Hz@1kHz 300nA 38mA 4mA 4mV Built-in compensation SOIC-8 Operational Amplifier ROHSTexas InstrumentsOperational Amplifier

README

Readme.md

TEst

Parts

Qty	Value	Footprint	References
4	100 uf/25V	Capacitor_THT:CP_Radial_D8.0mm_P3.50mm	C5, C6, C7, C8
3	Conn_01x03_Female	Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical	J1, J2, J3
2	10 pF	Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm	C3, C4
2	10 uF	Capacitor_THT:CP_Radial_D6.3mm_P2.50mm	C1, C2
2	100K	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal	R1, R2
2	100k	Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical	RV1, RV2
2	47	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal	R3, R4
2	Conn_01x02_Female	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	J4, J5
2	NE5534	Package_DIP:DIP-8_W7.62mm_Socket_LongPads	U1, U2

Questions

What parts does the Buffer Opamp use?

21 parts, built around the NE5534D. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Buffer Opamp KiCad files?

From the Gninnorg/ThePreamp repository on GitHub, at the commit this page was made from: the board is Hardware/Analogue/Buffer-Opamp/Buffer-Opamp.kicad_pcb and its schematic Hardware/Analogue/Buffer-Opamp/Buffer-Opamp.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Buffer Opamp design in my own project?

Its repository states no licence, so its author keeps all rights: ask Gninnorg before reusing the design.

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/gninnorg-thepreamp-buffer-opamp" title="Buffer Opamp in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/gninnorg-thepreamp-buffer-opamp.jpg" alt="Buffer Opamp" width="1200" height="900">

A picture that opens the board, for a README

[![Buffer Opamp](https://pcbkit.io/embed/boards/gninnorg-thepreamp-buffer-opamp.jpg?size=s)](https://pcbkit.io/boards/gninnorg-thepreamp-buffer-opamp)

Source

Repository: Gninnorg/ThePreamp
Board file: Hardware/Analogue/Buffer-Opamp/Buffer-Opamp.kicad_pcb
Commit: 0a3853a
Licence: Not stated

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