4 layers100 × 50 mm
SolderingRT1
ThomasVDD/SmartSoldering
SmartSoldering - Weller compatible soldering station
99 parts1GPL-3.0
2 layers40.6 × 23 mm
- Size
- 40.6 × 23 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 20
- Pads
- 74
- Tracks, vias
- 259, 11
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 18 Aug 2015
- Updated
- 13 Feb 2019
Overview
ECG is an open-source printed circuit board by IIBM, from the IIBM/stethoscope repository on GitHub. It is a 2-layer board of 40.6 × 23 mm with 28 parts on 20 nets, routed with 259 tracks and 11 vias.
It is built around the INA333SJD, OPA2335 and REF5050ID. Its parts include 8 capacitors, 8 resistors, 7 connectors and 5 ICs.
Main components
3
INA333SJD
CDIP-8-55℃~+210℃ 0.16V/us 1 1.7% 100V/V~1000V/V 10uV 70pA External resistor gain、Zero drift / auto-zero、Overvoltage protection、EMI filtering/RF suppression CDIP-8 Instrumentation Amplifiers ROHSTexas InstrumentsInstrumentation OpAmps
OPA2335
SOP-8Precision Op AmpsTokmas
REF5050ID
SOIC-8-40℃~+125℃@(Ta) 1.2mA 10mA 3ppm/℃ 3uVp-p 5.2V~18V 5V Fixed Series ±0.05% SOIC-8 Voltage Reference ROHSTexas InstrumentsVoltage Reference
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 0.1u | Capacitors_SMD:C_0805 | C4, C11, C12 |
| 2 | 10k | Resistors_SMD:R_0805 | R4, R6 |
| 2 | 12k | Resistors_SMD:R_0805 | R1, R2 |
| 2 | 1u | Capacitors_ThroughHole:C_Radial_D5_L11_P2 | C2, C5 |
| 2 | OPA2335 | Housings_SSOP:MSOP-8_3x3mm_Pitch0.65mm | U2, U3 |
| 1 | 100 | Resistors_SMD:R_0805 | R3 |
| 1 | 100k | Resistors_SMD:R_0805 | R8 |
| 1 | 10n | Capacitors_SMD:C_0805 | C1 |
| 1 | 2.2k | Resistors_SMD:R_0805 | R7 |
| 1 | 22u | Capacitors_ThroughHole:C_Radial_D5_L11_P2 | C6 |
| 1 | 330k | Resistors_SMD:R_0805 | R5 |
| 1 | 330n | Capacitors_SMD:C_0805 | C3 |
| 1 | 5V | Pin_Headers:Pin_Header_Straight_1x01 | P5 |
| 1 | GND | Pin_Headers:Pin_Header_Straight_1x01 | P6 |
| 1 | INA333 | Housings_SSOP:MSOP-8_3x3mm_Pitch0.65mm | U1 |
| 1 | LL | Pin_Headers:Pin_Header_Straight_1x01 | P2 |
| 1 | OUT | Pin_Headers:Pin_Header_Straight_1x01 | P4 |
| 1 | RA | Pin_Headers:Pin_Header_Straight_1x01 | P1 |
| 1 | REF3112 | Housings_SOT-23_SOT-143_TSOT-6:SOT-23_Handsoldering | U5 |
| 1 | REF5050 | Housings_SSOP:MSOP-8_3x3mm_Pitch0.65mm | U4 |
| 1 | RL | Pin_Headers:Pin_Header_Straight_1x01 | P3 |
| 1 | Shield | Pin_Headers:Pin_Header_Straight_1x01 | P7 |
Questions
How big is the ECG PCB?
It measures 40.6 × 23 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ECG use?
28 parts, built around the INA333SJD, OPA2335 and REF5050ID. 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 ECG KiCad files?
From the IIBM/stethoscope repository on GitHub, at the commit this page was made from: the board is PCB/Placa/ECG.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the ECG design in my own project?
Its repository states no licence, so its author keeps all rights: ask IIBM before reusing the design.
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