Bandpass amplifier shield
About the Bandpass amplifier shield
Bandpass amplifier shield is an open source PCB design by SAakbarnezhad, published on GitHub under the CC-BY-SA-4.0 license. It is a 4-layer board measuring 68.6 × 53.3 mm, with 37 components from 29 distinct parts.
Other key parts include the OPA340P. By type, the board carries 12 resistors, 7 connectors, 6 capacitors, 5 test points, 4 diodes and 2 ICs.
It belongs with the audio and dev boards & breakouts designs in this gallery.
From the project
4th order bandpass amplifier in an Arduino Uno R3 shield form factor — two OPA340P stages, split analog and digital ground, test points at every stage
An analog signal conditioning board in the Arduino Uno R3 shield form factor. Two OPA340P op-amp stages in series form a 4th order bandpass filter, with test points at every stage boundary so each half of the filter can be measured on its own.
Designed in KiCad over eleven revisions and manufactured. Rev v11, 68.6 x 53.3 mm, two layer FR4, through hole throughout.
Main components on the Bandpass amplifier shield
Bandpass amplifier shield bill of materials (BOM)
37 components, 29 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | OPA340P | DIP-8_W7.62mm | U1, U2 |
| 1 | Power | PinSocket_1x08_P2.54mm_Vertical | J1 |
| 1 | Digital/PWM | PinSocket_1x10_P2.54mm_Vertical | J2 |
| 1 | Analog | PinSocket_1x06_P2.54mm_Vertical | J3 |
| 1 | Digital/PWM | PinSocket_1x08_P2.54mm_Vertical | J4 |
| 1 | CONN_01X03_PIN Conn_01x03_Pin | PinSocket_1x03_P2.54mm_Horizontal | J5 |
| 1 | CONN_01X01_PIN Conn_01x01_Pin | PinHeader_1x01_P2.54mm_Vertical | J6 |
| 1 | CONN_01X02_PIN Conn_01x02_Pin | PinSocket_1x02_P2.54mm_Vertical | J8 |
| 1 | SW_Push | SW_PUSH_6mm_H7.3mm | SW1 |
| 1 | TP1_IN | PinHeader_1x01_P2.54mm_Vertical | TP1 |
| 1 | TP2_V_DRIVER_IN TP2_V_Driver_IN | PinHeader_1x01_P2.54mm_Vertical | TP2 |
| 1 | TP3_STAGE1_OUT TP3_Stage1_OUT | PinHeader_1x01_P2.54mm_Vertical | TP3 |
| 1 | TP4_STAGE2_OUT TP4_Stage2_OUT | PinHeader_1x01_P2.54mm_Vertical | TP4 |
| 1 | TP5_OUT | PinHeader_1x01_P2.54mm_Vertical | TP5 |
| 1 | LED_green | LED_D5.0mm | D1 |
| 1 | LED_yellow | LED_D5.0mm | D2 |
| 2 | LED_red | LED_D5.0mm | D3, D4 |
| 1 | 22U 22u | C_Radial_D5.0mm_H5.0mm_P2.00mm | C1 |
| 2 | 4.7U 4.7u | C_Radial_D5.0mm_H5.0mm_P2.00mm | C2, C5 |
| 1 | 1.5N 1.5n | C_Rect_L7.2mm_W7.2mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C3 |
Show 9 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 100N 100n | C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C4 |
| 1 | 3.3N 3.3n | C_Rect_L7.2mm_W7.2mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C6 |
| 2 | 10K 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2 |
| 1 | 2.2K 2.2k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3 |
| 1 | 220K 220k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4 |
| 1 | 33K 33k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5 |
| 1 | 100K 100k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R6 |
| 1 | 100 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7 |
| 5 | 220 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R8, R9, R10, R11, R12 |
Bandpass amplifier shield design files
The KiCad project lives in the SAakbarnezhad/bandpass-amplifier-shield repository on GitHub; these links point at the commit this page was built from.
Bandpass amplifier shield: common questions
How big is the Bandpass amplifier shield?
The Bandpass amplifier shield measures 68.6 × 53.3 mm, has 4 copper layers and is 1.685 mm thick.
How many components are on the Bandpass amplifier shield?
37 components, from 29 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Bandpass amplifier shield design files?
From the SAakbarnezhad/bandpass-amplifier-shield repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Bandpass amplifier shield design in my own project?
Yes, under the terms of its CC-BY-SA-4.0 license, which SAakbarnezhad chose for the repository.
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