2 layers61.2 × 128.5 mm Snuadc, the printed circuit board in 3D

Snuadc

An open source 8ch 10bit analog-digital converter

Size: 61.2 × 128.5 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 91
Nets: 61
Pads: 264
Tracks, vias: 705, 75
Pours: 3
Routed: Yes
KiCad: KiCad 4
Created: 22 Nov 2018
Updated: 22 Nov 2018

Overview

Snuadc is an open-source printed circuit board by vitaldb, from the vitaldb/snuadc repository on GitHub. It is a 2-layer board of 61.2 × 128.5 mm with 91 parts on 61 nets, routed with 705 tracks and 75 vias.

It is built around the LM2902N, ATMEGA32U4 and TLV431ASN. Its parts include 46 resistors, 26 capacitors, 4 ICs, 2 diodes and 2 connectors. It belongs with the AVR (ATmega, ATtiny) boards of this library.

Main components

Parts

Qty	Value	Footprint	References
16	300K	SM0603	R11, R14, R19, R22, R25, R29, R34, R35, R36, R37, R38, R39, R40, R41, R44, R46
16	75K	SM0603	R6, R7, R8, R9, R10, R12, R13, R18, R21, R24, R27, R28, R32, R33, R43, R45
8	10	SM0603	R15, R16, R17, R20, R23, R26, R31, R42
8	100nF	SM0603	C17, C18, C19, C21, C23, C25, C27, C29
8	20pF	SM0603	C14, C16, C20, C22, C24, C26, C28, C30
6		1pin	, , , , ,
5	104	SM0603	C6, C9, C10, C12, C13
2	18pF	SM0603	C5, C7
2	22	SM0603	R3, R4
2	470	SM0603	R2, R5
2	LED	LED-5MM	D1, D2
2	LM2902N	SO14E-WIDE	U3, U4
1		USB_B	USB1
1		MINIBUTVERT	SW1
1		PJ211A	J3
1	100nH	SM0603	L1
1	105	SM0603	C3
1	10K	SM0603	R1
1	10uF	SM0603	C15
1	16MHz	HC-49V	Y1
1	1K	SM0603	R30
1	ATMEGA32U4	TQFP44	U2
1	AVR-ISP-6	PIN_ARRAY_6X1	J2
1	C	SM0603	C8
1	DB9	DB9MC
1	TLV431	SOT23	U5

Questions

How big is the Snuadc PCB?

It measures 61.2 × 128.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Snuadc use?

91 parts, built around the LM2902N, ATMEGA32U4 and TLV431ASN. 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 Snuadc KiCad files?

From the vitaldb/snuadc repository on GitHub, at the commit this page was made from: the board is artwork/snuadc.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Snuadc design in my own project?

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

Category and platform

AVR (ATmega, ATtiny)

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/vitaldb-snuadc" title="Snuadc 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/vitaldb-snuadc.jpg" alt="Snuadc" width="1200" height="900">

A picture that opens the board, for a README

[![Snuadc](https://pcbkit.io/embed/boards/vitaldb-snuadc.jpg?size=s)](https://pcbkit.io/boards/vitaldb-snuadc)

Source

Repository: vitaldb/snuadc
Board file: artwork/snuadc.kicad_pcb
Commit: 556a8b1
Licence: Not stated

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