2 layers38.8 × 48.3 mm
Probe pcb
festlv/mso5000-logic-probe
Cheap logic probe for Rigol MSO5000-series oscilloscopes
36 parts37MIT
4 layers79 × 39.1 mm
Connector pcb
festlv/mso5000-logic-probe37Cheap logic probe for Rigol MSO5000-series oscilloscopes
- Size
- 79 × 39.1 mm
- Copper layers
- 4
- Thickness
- 1.61 mm
- Parts
- 39
- Nets
- 51
- Pads
- 196
- Tracks, vias
- 498, 122
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 17 Mar 2023
- Updated
- 11 Apr 2023
Overview
Connector pcb is an open-source printed circuit board by festlv, from the festlv/mso5000-logic-probe repository on GitHub, published under the MIT licence. It is a 4-layer board of 79 × 39.1 mm with 39 parts on 51 nets, routed with 498 tracks and 122 vias.
It is built around the MCP6002T-I/SN(MS), RC0603FR-0710KL and RC0603FR-071KL, with the MM3Z3V9, B-3000S24P-0110 and MF-FSMF020X-2 among its other parts. Its parts include 26 resistors, 3 diodes, 3 connectors, 2 capacitors and 2 ICs. It belongs with the sensors and measurement boards of this library.
Main components
8
MCP6002T-I/SN(MS)
SOP-8-2.75V~-1.35V、1.35V~2.75V -55℃~+125℃ 1.2V/us 1.5MHz 1pA 2 2.1V~5.5V 2pA 500uV 50uA 650nV/℃ 95dB Built-in compensation、Zero drift / auto-zero Rail-to-Rail Input, Rail-to-Rail Output SOP-8 Operational Amplifier ROHSMSKSEMIOperational Amplifier
RC0603FR-0710KL
UncategorisedUnknown makerRC0603FR-071KL
UncategorisedUnknown maker
MM3Z3V9
SOD-323-65℃~+150℃ 1 Independent 1kΩ 3.7V~4.1V 3.9V 300mW 3uA@1V 90Ω SOD-323 Zener Diodes ROHSonsemiZener Diodes
B-3000S24P-0110
插件,P=2.54mm12 2 2.54mm 2.54mm 2x12P Brass Gold IDC Header Through Hole 插件,P=2.54mm IDC Connectors ROHSCkmtwIDC Connectors
MF-FSMF020X-2
0603-40℃~+85℃ 0.65mm 1.05mm 1.85mm 200mA 40A 500mA 500mW 600ms 900mΩ 9V 0603 Resettable Fuses ROHSBournsResettable FusesXL-1608SYGC-06
0603-40℃~+85℃ 120° 2.2V 25mA 55mW 570nm~575nm 575nm 60mcd Discrete Diode Top-mount Water Clear Yellow Green 0603 LED Indication - Discrete ROHSXINGLIGHTLED Indication - Discrete
SFH11-PBPC-D25-RA-BK
弯插,P=2.54mm-40℃~+105℃ 2 2.54mm 2.54mm 2x25P 3A 50P 6mm Brass Gold Right Angle Side Square Hole 弯插,P=2.54mm Female Headers ROHSSullins Connector SolutionsFemale Headers
README
README.mdMSO5000 logic analyzer probe
This project aims to be a somewhat lower performance but significantly cheaper alternative to Rigol's PLA2216 logic analyzer probe for MSO5000-series oscilloscopes.
The project is based on the design published by Gandalf_Sr on EEVBlog forum, with the most notable difference being that it should allow input signal threshold selection from the oscilloscope.
The project consists of two PCBs:
- connector-pcb which plugs into oscilloscope,
- 2x probe-pcb's which connect to the aforementioned PCB via 24-pin IDC cables.
As the original design, it aims to support ~1-5V logic levels up to 100MHz. The probe PCBs can be built with two different TI level-shifters:
- SN74AXC8T245 with specified input range of 0.65-3.6V (4.2V abs. max).
- SN74LXC8T245 with specified input range of 1.1-5.5V (6.2V abs. max).
Do note that the propagation delay for lower input voltages can limit the observable signal's bandwidth!
Current status
Revision 0 of both PCBAs has been assembled and passed basic function checks. The only required change was that series resistor for ProbeDet signal was apparently too high (10K->100R).
Do keep in mind that the threshold level set in scope is not executed faitfhully- it's essentially amplified with a gain of 16.8 and provided as Vcc for SN74AXC8T245. See the datasheet of SN74AXC8T245 and connector-pcb/threshold-vcc-gain-calc.ods spreadsheet for details.
Connector PCB
Probe PCB
Parts
39| Qty | Value | Footprint | References |
|---|---|---|---|
| 17 | 100R | Resistor_SMD:R_0603_1608Metric | R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26 +1 |
| 4 | 10K | Resistor_SMD:R_0603_1608Metric | R3, R4, R5, R8 |
| 3 | 1K | Resistor_SMD:R_0603_1608Metric | R1, R6, R10 |
| 2 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 15K8 | Resistor_SMD:R_0603_1608Metric | R2, R7 |
| 2 | 3.9V 5% | Diode_SMD:D_SOD-323 | D1, D2 |
| 2 | IDC_HEADER_2x12 | idc:IDC-Header_2x12_P2.54mm_Vertical | J2, J3 |
| 2 | MCP6002-xMS | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1, U2 |
| 2 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad_Via | H1, H2 |
| 1 | 0.5A | Fuse:Fuse_0603_1608Metric | F1 |
| 1 | LED_GRN | LED_SMD:LED_0603_1608Metric | D3 |
| 1 | MSO5000_LA | Connector_PinSocket_2.54mm:PinSocket_2x25_P2.54mm_Horizontal | J1 |
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Questions
How big is the Connector pcb PCB?
It measures 79 × 39.1 mm and has 4 copper layers, 1.61 mm thick.
What parts does the Connector pcb use?
39 parts, built around the MCP6002T-I/SN(MS), RC0603FR-0710KL, RC0603FR-071KL and MM3Z3V9. 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 Connector pcb KiCad files?
From the festlv/mso5000-logic-probe repository on GitHub, at the commit this page was made from: the board is connector-pcb/connector-pcb.kicad_pcb and its schematic connector-pcb/connector-pcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Connector pcb design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).