Amplifier
About the Amplifier PCB
Amplifier is an open source PCB design by MarinosK, published on GitHub. It is a 2-layer board measuring 99.1 × 99.1 mm, with 69 components from 32 distinct parts.
Other key parts include the AD620, LM324, MCP3008 and CA3140. By type, the board carries 29 capacitors, 23 resistors, 11 connectors, 4 ICs, 1 switch and 1 LED.
It belongs with the audio designs in this gallery.
From the project
www.inhibition-eeg.com
Installation | Workshop (c) 2016 by Marinos Koutsomichalis
Code and hardware designs are distributed under the Attribution-NonCommercial-ShareAlike 3.0 Unported Creative Commons Licence (details here: http://creativecommons.org/licenses/by-nc-sa/3.0/deed.en_US).
Main components on the Amplifier
Amplifier bill of materials (BOM)
69 components, 32 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AD620 | DIP-8_W7.62mm | U1 |
| 1 | LM324 | DIP-14_W7.62mm | U2 |
| 1 | MCP3008 | DIP-16_W7.62mm | U3 |
| 1 | CA3140 | DIP-8_W7.62mm | U4 |
| 1 | JACK_2P | BARREL_JACK | J1 |
| 1 | CONN_01X03 | Pin_Header_Straight_1x03 | P1 |
| 2 | CONN_01X07 | Pin_Header_Straight_1x07 | P2, P3 |
| 4 | CONN_01X20 | Pin_Header_Straight_1x20 | P4, P5, P6, P7 |
| 2 | CONN_01X02 | Pin_Header_Straight_1x02 | P8, P9 |
| 1 | CONN_01X04 | Pin_Header_Straight_1x04 | P10 |
| 1 | Switch_DPST | Switch_LED | SW1 |
| 1 | POT | Pin_Header_Angled_1x03 | RV1 |
| 2 | 0.01μ | C_Rect_L7_W6_P5 | C1, C2 |
| 2 | 1n | C_Rect_L7_W6_P5 | C3, C4 |
| 5 | 0.01μ | C_Disc_D3_P2.5 | C5, C7, C9, C11, C19 |
| 5 | 0.33μ | C_Disc_D3_P2.5 | C6, C8, C10, C12, C20 |
| 6 | 10μ | C_Disc_D3_P2.5 | C13, C14, C18, C22, C28, C29 |
| 2 | 0.47μ | C_Rect_L7_W6_P5 | C15, C17 |
| 2 | 0.82μ | C_Rect_L7_W6_P5 | C16, C21 |
| 2 | .01μ | C_Disc_D3_P2.5 | C23, C24 |
Show 12 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 1n | C_Disc_D3_P2.5 | C25 |
| 2 | 1μ | C_Disc_D3_P2.5 | C26, C27 |
| 2 | 100K | Resistor_Horizontal_RM10mm | R1, R4 |
| 2 | 15M | Resistor_Horizontal_RM10mm | R2, R3 |
| 3 | 220 | Resistor_Horizontal_RM10mm | R5, R6, R18 |
| 9 | 10K | Resistor_Horizontal_RM10mm | R7, R8, R9, R10, R11, R14, R15, R16 +1 |
| 1 | 890K | Resistor_Horizontal_RM10mm | R12 |
| 1 | 1.8 | Resistor_Horizontal_RM10mm | R13 |
| 1 | .6 | Resistor_Horizontal_RM10mm | R17 |
| 1 | 15K | Resistor_Horizontal_RM10mm | R19 |
| 1 | 10 | Resistor_Horizontal_RM10mm | R21 |
| 2 | 1K | Resistor_Horizontal_RM10mm | R22, R23 |
Amplifier design files
The KiCad project lives in the MarinosK/Inhibition repository on GitHub; these links point at the commit this page was built from.
Amplifier: common questions
How big is the Amplifier PCB?
The Amplifier measures 99.1 × 99.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Amplifier?
69 components, from 32 distinct parts. The full bill of materials is listed on this page.
Where can I download the Amplifier design files?
From the MarinosK/Inhibition repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Amplifier design in my own project?
The repository has no license, so all rights stay with MarinosK. Use it as a reference, and ask the author before reusing the design.
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